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        (PyErr_SetString(PyExc_SystemError, "null argument to internal routine"), (PyObject*)0) : \
        (likely((obj)->ob_type->tp_as_mapping) ? (PySequence_GetSlice(obj, a, b)) : \
            (PyErr_Format(PyExc_TypeError, "'%.200s' object is unsliceable", (obj)->ob_type->tp_name), (PyObject*)0)))
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        (PyErr_SetString(PyExc_SystemError, "null argument to internal routine"), -1) : \
        (likely((obj)->ob_type->tp_as_mapping) ? (PySequence_SetSlice(obj, a, b, value)) : \
            (PyErr_Format(PyExc_TypeError, "'%.200s' object doesn't support slice assignment", (obj)->ob_type->tp_name), -1)))
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        (PyErr_SetString(PyExc_SystemError, "null argument to internal routine"), -1) : \
        (likely((obj)->ob_type->tp_as_mapping) ? (PySequence_DelSlice(obj, a, b)) : \
            (PyErr_Format(PyExc_TypeError, "'%.200s' object doesn't support slice deletion", (obj)->ob_type->tp_name), -1)))
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  #define __Pyx_GetAttrString(o,n)   PyObject_GetAttrString((o),((char *)(n)))
  #define __Pyx_SetAttrString(o,n,a) PyObject_SetAttrString((o),((char *)(n)),(a))
  #define __Pyx_DelAttrString(o,n)   PyObject_DelAttrString((o),((char *)(n)))
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  #define __Pyx_GetAttrString(o,n)   PyObject_GetAttrString((o),(n))
  #define __Pyx_SetAttrString(o,n,a) PyObject_SetAttrString((o),(n),(a))
  #define __Pyx_DelAttrString(o,n)   PyObject_DelAttrString((o),(n))
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  #define __Pyx_DOCSTR(n)  ((char *)(n))
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  #define __Pyx_NAMESTR(n) (n)
  #define __Pyx_DOCSTR(n)  (n)
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#if PY_MAJOR_VERSION >= 3
  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_TrueDivide(x,y)
  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceTrueDivide(x,y)
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  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_Divide(x,y)
  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceDivide(x,y)
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    #define __PYX_EXTERN_C extern
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#if defined(WIN32) || defined(MS_WINDOWS)
#define _USE_MATH_DEFINES
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#include <math.h>
#define __PYX_HAVE__scipy__spatial__ckdtree
#define __PYX_HAVE_API__scipy__spatial__ckdtree
#include "stdio.h"
#include "stdlib.h"
#include "numpy/arrayobject.h"
#include "numpy/ufuncobject.h"
#include "limits.h"
#ifdef _OPENMP
#include <omp.h>
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#ifdef PYREX_WITHOUT_ASSERTIONS
#define CYTHON_WITHOUT_ASSERTIONS
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/* inline attribute */
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#     define CYTHON_UNUSED
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# elif defined(__ICC) || (defined(__INTEL_COMPILER) && !defined(_MSC_VER))
#   define CYTHON_UNUSED __attribute__ ((__unused__))
# else
#   define CYTHON_UNUSED
# endif
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typedef struct {PyObject **p; char *s; const long n; const char* encoding; const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry; /*proto*/


/* Type Conversion Predeclarations */

#define __Pyx_PyBytes_FromUString(s) PyBytes_FromString((char*)s)
#define __Pyx_PyBytes_AsUString(s)   ((unsigned char*) PyBytes_AsString(s))

#define __Pyx_Owned_Py_None(b) (Py_INCREF(Py_None), Py_None)
#define __Pyx_PyBool_FromLong(b) ((b) ? (Py_INCREF(Py_True), Py_True) : (Py_INCREF(Py_False), Py_False))
static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x);

static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
static CYTHON_INLINE size_t __Pyx_PyInt_AsSize_t(PyObject*);

#if CYTHON_COMPILING_IN_CPYTHON
#define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x))
#else
#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x)
#endif
#define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x))

#ifdef __GNUC__
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    #define likely(x)   __builtin_expect(!!(x), 1)
    #define unlikely(x) __builtin_expect(!!(x), 0)
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    #define likely(x)   (x)
    #define unlikely(x) (x)
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  #define unlikely(x) (x)
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static PyObject *__pyx_m;
static PyObject *__pyx_b;
static PyObject *__pyx_empty_tuple;
static PyObject *__pyx_empty_bytes;
static int __pyx_lineno;
static int __pyx_clineno = 0;
static const char * __pyx_cfilenm= __FILE__;
static const char *__pyx_filename;

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    #define CYTHON_CCOMPLEX 0
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#if CYTHON_CCOMPLEX
  #ifdef __cplusplus
    #include <complex>
  #else
    #include <complex.h>
  #endif
#endif
#if CYTHON_CCOMPLEX && !defined(__cplusplus) && defined(__sun__) && defined(__GNUC__)
  #undef _Complex_I
  #define _Complex_I 1.0fj
#endif


static const char *__pyx_f[] = {
  "ckdtree.pyx",
  "numpy.pxd",
  "type.pxd",
};
#define IS_UNSIGNED(type) (((type) -1) > 0)
struct __Pyx_StructField_;
#define __PYX_BUF_FLAGS_PACKED_STRUCT (1 << 0)
typedef struct {
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  struct __Pyx_StructField_* fields;
  size_t size;     /* sizeof(type) */
  size_t arraysize[8]; /* length of array in each dimension */
  int ndim;
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  char is_unsigned;
  int flags;
} __Pyx_TypeInfo;
typedef struct __Pyx_StructField_ {
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  const char* name;
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typedef struct {
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typedef struct {
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  size_t new_count, enc_count;
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  char enc_type;
  char new_packmode;
  char enc_packmode;
  char is_valid_array;
} __Pyx_BufFmt_Context;


/* "numpy.pxd":723
 * # in Cython to enable them only on the right systems.
 * 
 * ctypedef npy_int8       int8_t             # <<<<<<<<<<<<<<
 * ctypedef npy_int16      int16_t
 * ctypedef npy_int32      int32_t
 */
typedef npy_int8 __pyx_t_5numpy_int8_t;

/* "numpy.pxd":724
 * 
 * ctypedef npy_int8       int8_t
 * ctypedef npy_int16      int16_t             # <<<<<<<<<<<<<<
 * ctypedef npy_int32      int32_t
 * ctypedef npy_int64      int64_t
 */
typedef npy_int16 __pyx_t_5numpy_int16_t;

/* "numpy.pxd":725
 * ctypedef npy_int8       int8_t
 * ctypedef npy_int16      int16_t
 * ctypedef npy_int32      int32_t             # <<<<<<<<<<<<<<
 * ctypedef npy_int64      int64_t
 * #ctypedef npy_int96      int96_t
 */
typedef npy_int32 __pyx_t_5numpy_int32_t;

/* "numpy.pxd":726
 * ctypedef npy_int16      int16_t
 * ctypedef npy_int32      int32_t
 * ctypedef npy_int64      int64_t             # <<<<<<<<<<<<<<
 * #ctypedef npy_int96      int96_t
 * #ctypedef npy_int128     int128_t
 */
typedef npy_int64 __pyx_t_5numpy_int64_t;

/* "numpy.pxd":730
 * #ctypedef npy_int128     int128_t
 * 
 * ctypedef npy_uint8      uint8_t             # <<<<<<<<<<<<<<
 * ctypedef npy_uint16     uint16_t
 * ctypedef npy_uint32     uint32_t
 */
typedef npy_uint8 __pyx_t_5numpy_uint8_t;

/* "numpy.pxd":731
 * 
 * ctypedef npy_uint8      uint8_t
 * ctypedef npy_uint16     uint16_t             # <<<<<<<<<<<<<<
 * ctypedef npy_uint32     uint32_t
 * ctypedef npy_uint64     uint64_t
 */
typedef npy_uint16 __pyx_t_5numpy_uint16_t;

/* "numpy.pxd":732
 * ctypedef npy_uint8      uint8_t
 * ctypedef npy_uint16     uint16_t
 * ctypedef npy_uint32     uint32_t             # <<<<<<<<<<<<<<
 * ctypedef npy_uint64     uint64_t
 * #ctypedef npy_uint96     uint96_t
 */
typedef npy_uint32 __pyx_t_5numpy_uint32_t;

/* "numpy.pxd":733
 * ctypedef npy_uint16     uint16_t
 * ctypedef npy_uint32     uint32_t
 * ctypedef npy_uint64     uint64_t             # <<<<<<<<<<<<<<
 * #ctypedef npy_uint96     uint96_t
 * #ctypedef npy_uint128    uint128_t
 */
typedef npy_uint64 __pyx_t_5numpy_uint64_t;

/* "numpy.pxd":737
 * #ctypedef npy_uint128    uint128_t
 * 
 * ctypedef npy_float32    float32_t             # <<<<<<<<<<<<<<
 * ctypedef npy_float64    float64_t
 * #ctypedef npy_float80    float80_t
 */
typedef npy_float32 __pyx_t_5numpy_float32_t;

/* "numpy.pxd":738
 * 
 * ctypedef npy_float32    float32_t
 * ctypedef npy_float64    float64_t             # <<<<<<<<<<<<<<
 * #ctypedef npy_float80    float80_t
 * #ctypedef npy_float128   float128_t
 */
typedef npy_float64 __pyx_t_5numpy_float64_t;

/* "numpy.pxd":747
 * # The int types are mapped a bit surprising --
 * # numpy.int corresponds to 'l' and numpy.long to 'q'
 * ctypedef npy_long       int_t             # <<<<<<<<<<<<<<
 * ctypedef npy_longlong   long_t
 * ctypedef npy_longlong   longlong_t
 */
typedef npy_long __pyx_t_5numpy_int_t;

/* "numpy.pxd":748
 * # numpy.int corresponds to 'l' and numpy.long to 'q'
 * ctypedef npy_long       int_t
 * ctypedef npy_longlong   long_t             # <<<<<<<<<<<<<<
 * ctypedef npy_longlong   longlong_t
 * 
 */
typedef npy_longlong __pyx_t_5numpy_long_t;

/* "numpy.pxd":749
 * ctypedef npy_long       int_t
 * ctypedef npy_longlong   long_t
 * ctypedef npy_longlong   longlong_t             # <<<<<<<<<<<<<<
 * 
 * ctypedef npy_ulong      uint_t
 */
typedef npy_longlong __pyx_t_5numpy_longlong_t;

/* "numpy.pxd":751
 * ctypedef npy_longlong   longlong_t
 * 
 * ctypedef npy_ulong      uint_t             # <<<<<<<<<<<<<<
 * ctypedef npy_ulonglong  ulong_t
 * ctypedef npy_ulonglong  ulonglong_t
 */
typedef npy_ulong __pyx_t_5numpy_uint_t;

/* "numpy.pxd":752
 * 
 * ctypedef npy_ulong      uint_t
 * ctypedef npy_ulonglong  ulong_t             # <<<<<<<<<<<<<<
 * ctypedef npy_ulonglong  ulonglong_t
 * 
 */
typedef npy_ulonglong __pyx_t_5numpy_ulong_t;

/* "numpy.pxd":753
 * ctypedef npy_ulong      uint_t
 * ctypedef npy_ulonglong  ulong_t
 * ctypedef npy_ulonglong  ulonglong_t             # <<<<<<<<<<<<<<
 * 
 * ctypedef npy_intp       intp_t
 */
typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;

/* "numpy.pxd":755
 * ctypedef npy_ulonglong  ulonglong_t
 * 
 * ctypedef npy_intp       intp_t             # <<<<<<<<<<<<<<
 * ctypedef npy_uintp      uintp_t
 * 
 */
typedef npy_intp __pyx_t_5numpy_intp_t;

/* "numpy.pxd":756
 * 
 * ctypedef npy_intp       intp_t
 * ctypedef npy_uintp      uintp_t             # <<<<<<<<<<<<<<
 * 
 * ctypedef npy_double     float_t
 */
typedef npy_uintp __pyx_t_5numpy_uintp_t;

/* "numpy.pxd":758
 * ctypedef npy_uintp      uintp_t
 * 
 * ctypedef npy_double     float_t             # <<<<<<<<<<<<<<
 * ctypedef npy_double     double_t
 * ctypedef npy_longdouble longdouble_t
 */
typedef npy_double __pyx_t_5numpy_float_t;

/* "numpy.pxd":759
 * 
 * ctypedef npy_double     float_t
 * ctypedef npy_double     double_t             # <<<<<<<<<<<<<<
 * ctypedef npy_longdouble longdouble_t
 * 
 */
typedef npy_double __pyx_t_5numpy_double_t;

/* "numpy.pxd":760
 * ctypedef npy_double     float_t
 * ctypedef npy_double     double_t
 * ctypedef npy_longdouble longdouble_t             # <<<<<<<<<<<<<<
 * 
 * ctypedef npy_cfloat      cfloat_t
 */
typedef npy_longdouble __pyx_t_5numpy_longdouble_t;
#if CYTHON_CCOMPLEX
  #ifdef __cplusplus
    typedef ::std::complex< float > __pyx_t_float_complex;
  #else
    typedef float _Complex __pyx_t_float_complex;
  #endif
#else
    typedef struct { float real, imag; } __pyx_t_float_complex;
#endif

#if CYTHON_CCOMPLEX
  #ifdef __cplusplus
    typedef ::std::complex< double > __pyx_t_double_complex;
  #else
    typedef double _Complex __pyx_t_double_complex;
  #endif
#else
    typedef struct { double real, imag; } __pyx_t_double_complex;
#endif


/*--- Type declarations ---*/
struct __pyx_obj_5scipy_7spatial_7ckdtree_coo_entries;
struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker;
struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree;
struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker;
struct __pyx_obj_5scipy_7spatial_7ckdtree_heap;
struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle;

/* "numpy.pxd":762
 * ctypedef npy_longdouble longdouble_t
 * 
 * ctypedef npy_cfloat      cfloat_t             # <<<<<<<<<<<<<<
 * ctypedef npy_cdouble     cdouble_t
 * ctypedef npy_clongdouble clongdouble_t
 */
typedef npy_cfloat __pyx_t_5numpy_cfloat_t;

/* "numpy.pxd":763
 * 
 * ctypedef npy_cfloat      cfloat_t
 * ctypedef npy_cdouble     cdouble_t             # <<<<<<<<<<<<<<
 * ctypedef npy_clongdouble clongdouble_t
 * 
 */
typedef npy_cdouble __pyx_t_5numpy_cdouble_t;

/* "numpy.pxd":764
 * ctypedef npy_cfloat      cfloat_t
 * ctypedef npy_cdouble     cdouble_t
 * ctypedef npy_clongdouble clongdouble_t             # <<<<<<<<<<<<<<
 * 
 * ctypedef npy_cdouble     complex_t
 */
typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;

/* "numpy.pxd":766
 * ctypedef npy_clongdouble clongdouble_t
 * 
 * ctypedef npy_cdouble     complex_t             # <<<<<<<<<<<<<<
 * 
 * cdef inline object PyArray_MultiIterNew1(a):
 */
typedef npy_cdouble __pyx_t_5numpy_complex_t;
union __pyx_t_5scipy_7spatial_7ckdtree_heapcontents;
struct __pyx_t_5scipy_7spatial_7ckdtree_heapitem;
struct __pyx_t_5scipy_7spatial_7ckdtree_RR_stack_item;
struct __pyx_t_5scipy_7spatial_7ckdtree_RP_stack_item;
struct __pyx_t_5scipy_7spatial_7ckdtree_innernode;
struct __pyx_t_5scipy_7spatial_7ckdtree_leafnode;
struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo;

/* "scipy/spatial/ckdtree.pyx":88
 * # Priority queue
 * # ==============
 * cdef union heapcontents:    # FIXME: Unions are not always portable, verify this             # <<<<<<<<<<<<<<
 *     np.intp_t intdata     # union is never used in an ABI dependent way.
 *     char* ptrdata
 */
union __pyx_t_5scipy_7spatial_7ckdtree_heapcontents {
  __pyx_t_5numpy_intp_t intdata;
  char *ptrdata;
};

/* "scipy/spatial/ckdtree.pyx":92
 *     char* ptrdata
 * 
 * cdef struct heapitem:             # <<<<<<<<<<<<<<
 *     np.float64_t priority
 *     heapcontents contents
 */
struct __pyx_t_5scipy_7spatial_7ckdtree_heapitem {
  __pyx_t_5numpy_float64_t priority;
  union __pyx_t_5scipy_7spatial_7ckdtree_heapcontents contents;
};

/* "scipy/spatial/ckdtree.pyx":411
 * # dist_tracker.pop()
 * 
 * cdef struct RR_stack_item:             # <<<<<<<<<<<<<<
 *     np.intp_t which
 *     np.intp_t split_dim
 */
struct __pyx_t_5scipy_7spatial_7ckdtree_RR_stack_item {
  __pyx_t_5numpy_intp_t which;
  __pyx_t_5numpy_intp_t split_dim;
  double min_along_dim;
  double max_along_dim;
  __pyx_t_5numpy_float64_t min_distance;
  __pyx_t_5numpy_float64_t max_distance;
};

/* "scipy/spatial/ckdtree.pyx":594
 * # dist_tracker.pop()
 * 
 * cdef struct RP_stack_item:             # <<<<<<<<<<<<<<
 *     np.intp_t split_dim
 *     double min_along_dim, max_along_dim
 */
struct __pyx_t_5scipy_7spatial_7ckdtree_RP_stack_item {
  __pyx_t_5numpy_intp_t split_dim;
  double min_along_dim;
  double max_along_dim;
  __pyx_t_5numpy_float64_t min_distance;
  __pyx_t_5numpy_float64_t max_distance;
};

/* "scipy/spatial/ckdtree.pyx":730
 * # Tree structure
 * # ==============
 * cdef struct innernode:             # <<<<<<<<<<<<<<
 *     np.intp_t split_dim
 *     np.intp_t children
 */
struct __pyx_t_5scipy_7spatial_7ckdtree_innernode {
  __pyx_t_5numpy_intp_t split_dim;
  __pyx_t_5numpy_intp_t children;
  __pyx_t_5numpy_float64_t split;
  struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *less;
  struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *greater;
};

/* "scipy/spatial/ckdtree.pyx":737
 *     innernode* greater
 * 
 * cdef struct leafnode:             # <<<<<<<<<<<<<<
 *     np.intp_t split_dim
 *     np.intp_t children
 */
struct __pyx_t_5scipy_7spatial_7ckdtree_leafnode {
  __pyx_t_5numpy_intp_t split_dim;
  __pyx_t_5numpy_intp_t children;
  __pyx_t_5numpy_intp_t start_idx;
  __pyx_t_5numpy_intp_t end_idx;
};

/* "scipy/spatial/ckdtree.pyx":747
 * # malloc sizeof(nodeinfo)+self.m*sizeof(np.float64_t) bytes.
 * 
 * cdef struct nodeinfo:             # <<<<<<<<<<<<<<
 *     innernode* node
 *     np.float64_t side_distances[0]  # FIXME: Only valid in C99, invalid C++ and C89
 */
struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo {
  struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *node;
  __pyx_t_5numpy_float64_t side_distances[0];
};

/* "scipy/spatial/ckdtree.pyx":201
 * 
 * # Utility for building a coo matrix incrementally
 * cdef class coo_entries:             # <<<<<<<<<<<<<<
 *     cdef:
 *         np.intp_t n, n_max
 */
struct __pyx_obj_5scipy_7spatial_7ckdtree_coo_entries {
  PyObject_HEAD
  struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_coo_entries *__pyx_vtab;
  __pyx_t_5numpy_intp_t n;
  __pyx_t_5numpy_intp_t n_max;
  PyArrayObject *i;
  PyArrayObject *j;
  PyArrayObject *v;
  __pyx_t_5numpy_intp_t *i_data;
  __pyx_t_5numpy_intp_t *j_data;
  __pyx_t_5numpy_float64_t *v_data;
};


/* "scipy/spatial/ckdtree.pyx":420
 * cdef np.intp_t GREATER = 2
 * 
 * cdef class RectRectDistanceTracker(object):             # <<<<<<<<<<<<<<
 *     cdef Rectangle rect1, rect2
 *     cdef np.float64_t p, epsfac, upper_bound
 */
struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker {
  PyObject_HEAD
  struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *__pyx_vtab;
  struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *rect1;
  struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *rect2;
  __pyx_t_5numpy_float64_t p;
  __pyx_t_5numpy_float64_t epsfac;
  __pyx_t_5numpy_float64_t upper_bound;
  __pyx_t_5numpy_float64_t min_distance;
  __pyx_t_5numpy_float64_t max_distance;
  __pyx_t_5numpy_intp_t stack_size;
  __pyx_t_5numpy_intp_t stack_max_size;
  struct __pyx_t_5scipy_7spatial_7ckdtree_RR_stack_item *stack;
};


/* "scipy/spatial/ckdtree.pyx":754
 * # Main class
 * # ==========
 * cdef class cKDTree:             # <<<<<<<<<<<<<<
 *     """
 *     cKDTree(data, int leafsize=10)
 */
struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree {
  PyObject_HEAD
  struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *__pyx_vtab;
  struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *tree;
  PyArrayObject *data;
  __pyx_t_5numpy_float64_t *raw_data;
  __pyx_t_5numpy_intp_t n;
  __pyx_t_5numpy_intp_t m;
  __pyx_t_5numpy_intp_t leafsize;
  PyArrayObject *maxes;
  __pyx_t_5numpy_float64_t *raw_maxes;
  PyArrayObject *mins;
  __pyx_t_5numpy_float64_t *raw_mins;
  PyArrayObject *indices;
  __pyx_t_5numpy_intp_t *raw_indices;
};


/* "scipy/spatial/ckdtree.pyx":599
 *     np.float64_t min_distance, max_distance
 * 
 * cdef class PointRectDistanceTracker(object):             # <<<<<<<<<<<<<<
 *     cdef Rectangle rect
 *     cdef np.float64_t *pt
 */
struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker {
  PyObject_HEAD
  struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *__pyx_vtab;
  struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *rect;
  __pyx_t_5numpy_float64_t *pt;
  __pyx_t_5numpy_float64_t p;
  __pyx_t_5numpy_float64_t epsfac;
  __pyx_t_5numpy_float64_t upper_bound;
  __pyx_t_5numpy_float64_t min_distance;
  __pyx_t_5numpy_float64_t max_distance;
  __pyx_t_5numpy_intp_t stack_size;
  __pyx_t_5numpy_intp_t stack_max_size;
  struct __pyx_t_5scipy_7spatial_7ckdtree_RP_stack_item *stack;
};


/* "scipy/spatial/ckdtree.pyx":96
 *     heapcontents contents
 * 
 * cdef class heap(object):             # <<<<<<<<<<<<<<
 *     cdef np.intp_t n
 *     cdef heapitem* heap
 */
struct __pyx_obj_5scipy_7spatial_7ckdtree_heap {
  PyObject_HEAD
  struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_heap *__pyx_vtab;
  __pyx_t_5numpy_intp_t n;
  struct __pyx_t_5scipy_7spatial_7ckdtree_heapitem *heap;
  __pyx_t_5numpy_intp_t space;
};


/* "scipy/spatial/ckdtree.pyx":289
 * # ===================
 * 
 * cdef class Rectangle:             # <<<<<<<<<<<<<<
 *     cdef np.intp_t m
 *     cdef np.float64_t *mins
 */
struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle {
  PyObject_HEAD
  __pyx_t_5numpy_intp_t m;
  __pyx_t_5numpy_float64_t *mins;
  __pyx_t_5numpy_float64_t *maxes;
  PyArrayObject *mins_arr;
  PyArrayObject *maxes_arr;
};



/* "scipy/spatial/ckdtree.pyx":599
 *     np.float64_t min_distance, max_distance
 * 
 * cdef class PointRectDistanceTracker(object):             # <<<<<<<<<<<<<<
 *     cdef Rectangle rect
 *     cdef np.float64_t *pt
 */

struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_PointRectDistanceTracker {
  int (*_init_stack)(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *);
  int (*_resize_stack)(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *, __pyx_t_5numpy_intp_t);
  int (*_free_stack)(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *);
  PyObject *(*init)(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *, __pyx_t_5numpy_float64_t *, struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *, __pyx_t_5numpy_float64_t, __pyx_t_5numpy_float64_t, __pyx_t_5numpy_float64_t);
  int (*push)(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_float64_t);
  int (*push_less_of)(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *);
  int (*push_greater_of)(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *);
  int (*pop)(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *);
};
static struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *__pyx_vtabptr_5scipy_7spatial_7ckdtree_PointRectDistanceTracker;
static CYTHON_INLINE int __pyx_f_5scipy_7spatial_7ckdtree_24PointRectDistanceTracker_push_less_of(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *);
static CYTHON_INLINE int __pyx_f_5scipy_7spatial_7ckdtree_24PointRectDistanceTracker_push_greater_of(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *);
static CYTHON_INLINE int __pyx_f_5scipy_7spatial_7ckdtree_24PointRectDistanceTracker_pop(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *);


/* "scipy/spatial/ckdtree.pyx":96
 *     heapcontents contents
 * 
 * cdef class heap(object):             # <<<<<<<<<<<<<<
 *     cdef np.intp_t n
 *     cdef heapitem* heap
 */

struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_heap {
  int (*_resize)(struct __pyx_obj_5scipy_7spatial_7ckdtree_heap *, __pyx_t_5numpy_intp_t);
  int (*push)(struct __pyx_obj_5scipy_7spatial_7ckdtree_heap *, struct __pyx_t_5scipy_7spatial_7ckdtree_heapitem);
  struct __pyx_t_5scipy_7spatial_7ckdtree_heapitem (*peek)(struct __pyx_obj_5scipy_7spatial_7ckdtree_heap *);
  int (*remove)(struct __pyx_obj_5scipy_7spatial_7ckdtree_heap *);
  int (*pop)(struct __pyx_obj_5scipy_7spatial_7ckdtree_heap *, struct __pyx_t_5scipy_7spatial_7ckdtree_heapitem *);
};
static struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_heap *__pyx_vtabptr_5scipy_7spatial_7ckdtree_heap;
static CYTHON_INLINE int __pyx_f_5scipy_7spatial_7ckdtree_4heap__resize(struct __pyx_obj_5scipy_7spatial_7ckdtree_heap *, __pyx_t_5numpy_intp_t);
static CYTHON_INLINE int __pyx_f_5scipy_7spatial_7ckdtree_4heap_push(struct __pyx_obj_5scipy_7spatial_7ckdtree_heap *, struct __pyx_t_5scipy_7spatial_7ckdtree_heapitem);


/* "scipy/spatial/ckdtree.pyx":201
 * 
 * # Utility for building a coo matrix incrementally
 * cdef class coo_entries:             # <<<<<<<<<<<<<<
 *     cdef:
 *         np.intp_t n, n_max
 */

struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_coo_entries {
  void (*add)(struct __pyx_obj_5scipy_7spatial_7ckdtree_coo_entries *, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_float64_t);
};
static struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_coo_entries *__pyx_vtabptr_5scipy_7spatial_7ckdtree_coo_entries;


/* "scipy/spatial/ckdtree.pyx":754
 * # Main class
 * # ==========
 * cdef class cKDTree:             # <<<<<<<<<<<<<<
 *     """
 *     cKDTree(data, int leafsize=10)
 */

struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree {
  struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *(*__pyx___build)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_float64_t *, __pyx_t_5numpy_float64_t *);
  PyObject *(*__pyx___free_tree)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *);
  int (*__pyx___query)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, __pyx_t_5numpy_float64_t *, __pyx_t_5numpy_intp_t *, __pyx_t_5numpy_float64_t *, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_float64_t, __pyx_t_5numpy_float64_t, __pyx_t_5numpy_float64_t);
  int (*__pyx___query_ball_point_traverse_no_checking)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, PyObject *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *);
  int (*__pyx___query_ball_point_traverse_checking)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, PyObject *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *);
  PyObject *(*__pyx___query_ball_point)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, __pyx_t_5numpy_float64_t *, __pyx_t_5numpy_float64_t, __pyx_t_5numpy_float64_t, __pyx_t_5numpy_float64_t);
  int (*__pyx___query_ball_tree_traverse_no_checking)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, PyObject *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *);
  int (*__pyx___query_ball_tree_traverse_checking)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, PyObject *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *);
  int (*__pyx___query_pairs_traverse_no_checking)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, PyObject *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *);
  int (*__pyx___query_pairs_traverse_checking)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, PyObject *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *);
  int (*__pyx___count_neighbors_traverse)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_float64_t *, __pyx_t_5numpy_intp_t *, __pyx_t_5numpy_intp_t *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *);
  int (*__pyx___sparse_distance_matrix_traverse)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, struct __pyx_obj_5scipy_7spatial_7ckdtree_coo_entries *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *);
};
static struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *__pyx_vtabptr_5scipy_7spatial_7ckdtree_cKDTree;


/* "scipy/spatial/ckdtree.pyx":420
 * cdef np.intp_t GREATER = 2
 * 
 * cdef class RectRectDistanceTracker(object):             # <<<<<<<<<<<<<<
 *     cdef Rectangle rect1, rect2
 *     cdef np.float64_t p, epsfac, upper_bound
 */

struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_RectRectDistanceTracker {
  int (*_init_stack)(struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *);
  int (*_resize_stack)(struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *, __pyx_t_5numpy_intp_t);
  int (*_free_stack)(struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *);
  int (*push)(struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_float64_t);
  int (*push_less_of)(struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *, __pyx_t_5numpy_intp_t, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *);
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static CYTHON_INLINE PyObject *__Pyx_PyInt_to_py_Py_intptr_t(Py_intptr_t);

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static PyTypeObject *__Pyx_ImportType(const char *module_name, const char *class_name, size_t size, int strict);  /*proto*/

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static PyTypeObject *__pyx_ptype_5numpy_flatiter = 0;
static PyTypeObject *__pyx_ptype_5numpy_broadcast = 0;
static PyTypeObject *__pyx_ptype_5numpy_ndarray = 0;
static PyTypeObject *__pyx_ptype_5numpy_ufunc = 0;
static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *, char *, char *, int *); /*proto*/

/* Module declarations from 'cython' */

/* Module declarations from 'scipy.spatial.ckdtree' */
static PyTypeObject *__pyx_ptype_5scipy_7spatial_7ckdtree_heap = 0;
static PyTypeObject *__pyx_ptype_5scipy_7spatial_7ckdtree_coo_entries = 0;
static PyTypeObject *__pyx_ptype_5scipy_7spatial_7ckdtree_Rectangle = 0;
static PyTypeObject *__pyx_ptype_5scipy_7spatial_7ckdtree_RectRectDistanceTracker = 0;
static PyTypeObject *__pyx_ptype_5scipy_7spatial_7ckdtree_PointRectDistanceTracker = 0;
static PyTypeObject *__pyx_ptype_5scipy_7spatial_7ckdtree_cKDTree = 0;
static __pyx_t_5numpy_float64_t __pyx_v_5scipy_7spatial_7ckdtree_infinity;
static __pyx_t_5numpy_intp_t __pyx_v_5scipy_7spatial_7ckdtree_LESS;
static __pyx_t_5numpy_intp_t __pyx_v_5scipy_7spatial_7ckdtree_GREATER;
static CYTHON_INLINE int __pyx_f_5scipy_7spatial_7ckdtree_set_add_ordered_pair(PyObject *, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_intp_t); /*proto*/
static CYTHON_INLINE int __pyx_f_5scipy_7spatial_7ckdtree_list_append(PyObject *, __pyx_t_5numpy_intp_t); /*proto*/
static CYTHON_INLINE __pyx_t_5numpy_float64_t __pyx_f_5scipy_7spatial_7ckdtree_dmax(__pyx_t_5numpy_float64_t, __pyx_t_5numpy_float64_t); /*proto*/
static CYTHON_INLINE __pyx_t_5numpy_float64_t __pyx_f_5scipy_7spatial_7ckdtree_dabs(__pyx_t_5numpy_float64_t); /*proto*/
static CYTHON_INLINE __pyx_t_5numpy_float64_t __pyx_f_5scipy_7spatial_7ckdtree__distance_p(__pyx_t_5numpy_float64_t *, __pyx_t_5numpy_float64_t *, __pyx_t_5numpy_float64_t, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_float64_t); /*proto*/
static CYTHON_INLINE __pyx_t_5numpy_float64_t __pyx_f_5scipy_7spatial_7ckdtree_min_dist_point_interval_p(__pyx_t_5numpy_float64_t *, struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_float64_t); /*proto*/
static CYTHON_INLINE __pyx_t_5numpy_float64_t __pyx_f_5scipy_7spatial_7ckdtree_max_dist_point_interval_p(__pyx_t_5numpy_float64_t *, struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_float64_t); /*proto*/
static CYTHON_INLINE __pyx_t_5numpy_float64_t __pyx_f_5scipy_7spatial_7ckdtree_min_dist_interval_interval_p(struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *, struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_float64_t); /*proto*/
static CYTHON_INLINE __pyx_t_5numpy_float64_t __pyx_f_5scipy_7spatial_7ckdtree_max_dist_interval_interval_p(struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *, struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_float64_t); /*proto*/
static CYTHON_INLINE __pyx_t_5numpy_float64_t __pyx_f_5scipy_7spatial_7ckdtree_min_dist_point_rect_p_inf(__pyx_t_5numpy_float64_t *, struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *); /*proto*/
static CYTHON_INLINE __pyx_t_5numpy_float64_t __pyx_f_5scipy_7spatial_7ckdtree_max_dist_point_rect_p_inf(__pyx_t_5numpy_float64_t *, struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *); /*proto*/
static CYTHON_INLINE __pyx_t_5numpy_float64_t __pyx_f_5scipy_7spatial_7ckdtree_min_dist_rect_rect_p_inf(struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *, struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *); /*proto*/
static CYTHON_INLINE __pyx_t_5numpy_float64_t __pyx_f_5scipy_7spatial_7ckdtree_max_dist_rect_rect_p_inf(struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *, struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *); /*proto*/
static __Pyx_TypeInfo __Pyx_TypeInfo_nn___pyx_t_5numpy_float64_t = { "float64_t", NULL, sizeof(__pyx_t_5numpy_float64_t), { 0 }, 0, 'R', 0, 0 };
static __Pyx_TypeInfo __Pyx_TypeInfo_nn___pyx_t_5numpy_intp_t = { "intp_t", NULL, sizeof(__pyx_t_5numpy_intp_t), { 0 }, 0, IS_UNSIGNED(__pyx_t_5numpy_intp_t) ? 'U' : 'I', IS_UNSIGNED(__pyx_t_5numpy_intp_t), 0 };
#define __Pyx_MODULE_NAME "scipy.spatial.ckdtree"
int __pyx_module_is_main_scipy__spatial__ckdtree = 0;

/* Implementation of 'scipy.spatial.ckdtree' */
static PyObject *__pyx_builtin_MemoryError;
static PyObject *__pyx_builtin_ValueError;
static PyObject *__pyx_builtin_range;
static PyObject *__pyx_builtin_RuntimeError;
static int __pyx_pf_5scipy_7spatial_7ckdtree_4heap___init__(struct __pyx_obj_5scipy_7spatial_7ckdtree_heap *__pyx_v_self, __pyx_t_5numpy_intp_t __pyx_v_initial_size); /* proto */
static void __pyx_pf_5scipy_7spatial_7ckdtree_4heap_2__dealloc__(struct __pyx_obj_5scipy_7spatial_7ckdtree_heap *__pyx_v_self); /* proto */
static int __pyx_pf_5scipy_7spatial_7ckdtree_11coo_entries___init__(struct __pyx_obj_5scipy_7spatial_7ckdtree_coo_entries *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_5scipy_7spatial_7ckdtree_11coo_entries_2to_matrix(struct __pyx_obj_5scipy_7spatial_7ckdtree_coo_entries *__pyx_v_self, PyObject *__pyx_v_shape); /* proto */
static int __pyx_pf_5scipy_7spatial_7ckdtree_9Rectangle___init__(struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *__pyx_v_self, PyObject *__pyx_v_mins_arr, PyObject *__pyx_v_maxes_arr); /* proto */
static int __pyx_pf_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker___init__(struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *__pyx_v_self, struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *__pyx_v_rect1, struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *__pyx_v_rect2, __pyx_t_5numpy_float64_t __pyx_v_p, __pyx_t_5numpy_float64_t __pyx_v_eps, __pyx_t_5numpy_float64_t __pyx_v_upper_bound); /* proto */
static void __pyx_pf_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_2__dealloc__(struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *__pyx_v_self); /* proto */
static void __pyx_pf_5scipy_7spatial_7ckdtree_24PointRectDistanceTracker___dealloc__(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *__pyx_v_self); /* proto */
static int __pyx_pf_5scipy_7spatial_7ckdtree_7cKDTree___init__(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_self, PyObject *__pyx_v_data, __pyx_t_5numpy_intp_t __pyx_v_leafsize); /* proto */
static void __pyx_pf_5scipy_7spatial_7ckdtree_7cKDTree_2__dealloc__(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_5scipy_7spatial_7ckdtree_7cKDTree_4query(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_self, PyObject *__pyx_v_x, __pyx_t_5numpy_intp_t __pyx_v_k, __pyx_t_5numpy_float64_t __pyx_v_eps, __pyx_t_5numpy_float64_t __pyx_v_p, __pyx_t_5numpy_float64_t __pyx_v_distance_upper_bound); /* proto */
static PyObject *__pyx_pf_5scipy_7spatial_7ckdtree_7cKDTree_6query_ball_point(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_self, PyObject *__pyx_v_x, __pyx_t_5numpy_float64_t __pyx_v_r, __pyx_t_5numpy_float64_t __pyx_v_p, __pyx_t_5numpy_float64_t __pyx_v_eps); /* proto */
static PyObject *__pyx_pf_5scipy_7spatial_7ckdtree_7cKDTree_8query_ball_tree(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_self, struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_other, __pyx_t_5numpy_float64_t __pyx_v_r, __pyx_t_5numpy_float64_t __pyx_v_p, __pyx_t_5numpy_float64_t __pyx_v_eps); /* proto */
static PyObject *__pyx_pf_5scipy_7spatial_7ckdtree_7cKDTree_10query_pairs(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_self, __pyx_t_5numpy_float64_t __pyx_v_r, __pyx_t_5numpy_float64_t __pyx_v_p, __pyx_t_5numpy_float64_t __pyx_v_eps); /* proto */
static PyObject *__pyx_pf_5scipy_7spatial_7ckdtree_7cKDTree_12count_neighbors(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_self, struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_other, PyObject *__pyx_v_r, __pyx_t_5numpy_float64_t __pyx_v_p); /* proto */
static PyObject *__pyx_pf_5scipy_7spatial_7ckdtree_7cKDTree_14sparse_distance_matrix(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_self, struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_other, __pyx_t_5numpy_float64_t __pyx_v_max_distance, __pyx_t_5numpy_float64_t __pyx_v_p); /* proto */
static PyObject *__pyx_pf_5scipy_7spatial_7ckdtree_7cKDTree_4data___get__(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_5scipy_7spatial_7ckdtree_7cKDTree_1n___get__(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_5scipy_7spatial_7ckdtree_7cKDTree_1m___get__(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_5scipy_7spatial_7ckdtree_7cKDTree_8leafsize___get__(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_5scipy_7spatial_7ckdtree_7cKDTree_5maxes___get__(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_5scipy_7spatial_7ckdtree_7cKDTree_4mins___get__(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_self); /* proto */
static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info, int __pyx_v_flags); /* proto */
static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_self, Py_buffer *__pyx_v_info); /* proto */
static char __pyx_k_1[] = "Heap containing %d items cannot be resized to %d";
static char __pyx_k_2[] = "rect1 and rect2 have different dimensions";
static char __pyx_k_4[] = "leafsize must be at least 1";
static char __pyx_k_7[] = "distance_upper_bound";
static char __pyx_k_9[] = "x must consist of vectors of length %d but hasshape %s";
static char __pyx_k_10[] = "Only p-norms with 1<=p<=infinity permitted";
static char __pyx_k_19[] = "Searching for a %d-dimensional point in a %d-dimensional KDTree";
static char __pyx_k_20[] = "Trees passed to query_ball_tree have different dimensionality";
static char __pyx_k_22[] = "Trees passed to count_neighbors have different dimensionality";
static char __pyx_k_24[] = "r must be either a single value or a one-dimensional array of values";
static char __pyx_k_26[] = "Trees passed to sparse_distance_matrix have different dimensionality";
static char __pyx_k_28[] = "ndarray is not C contiguous";
static char __pyx_k_30[] = "ndarray is not Fortran contiguous";
static char __pyx_k_32[] = "Non-native byte order not supported";
static char __pyx_k_34[] = "unknown dtype code in numpy.pxd (%d)";
static char __pyx_k_35[] = "Format string allocated too short, see comment in numpy.pxd";
static char __pyx_k_38[] = "Format string allocated too short.";
static char __pyx_k_40[] = "scipy.sparse";
static char __pyx_k_41[] = "cKDTree.query_ball_point (line 1343)";
static char __pyx_k_42[] = "query_ball_point(self, x, r, p, eps)\n        \n        Find all points within distance r of point(s) x.\n\n        Parameters\n        ----------\n        x : array_like, shape tuple + (self.m,)\n            The point or points to search for neighbors of.\n        r : positive float\n            The radius of points to return.\n        p : float, optional\n            Which Minkowski p-norm to use.  Should be in the range [1, inf].\n        eps : nonnegative float, optional\n            Approximate search. Branches of the tree are not explored if their\n            nearest points are further than ``r / (1 + eps)``, and branches are\n            added in bulk if their furthest points are nearer than\n            ``r * (1 + eps)``.\n\n        Returns\n        -------\n        results : list or array of lists\n            If `x` is a single point, returns a list of the indices of the\n            neighbors of `x`. If `x` is an array of points, returns an object\n            array of shape tuple containing lists of neighbors.\n\n        Notes\n        -----\n        If you have many points whose neighbors you want to find, you may save\n        substantial amounts of time by putting them in a cKDTree and using\n        query_ball_tree.\n\n        Examples\n        --------\n        >>> from scipy import spatial\n        >>> x, y = np.mgrid[0:4, 0:4]\n        >>> points = zip(x.ravel(), y.ravel())\n        >>> tree = spatial.cKDTree(points)\n        >>> tree.query_ball_point([2, 0], 1)\n        [4, 8, 9, 12]\n\n        ";
static char __pyx_k__B[] = "B";
static char __pyx_k__C[] = "C";
static char __pyx_k__H[] = "H";
static char __pyx_k__I[] = "I";
static char __pyx_k__L[] = "L";
static char __pyx_k__O[] = "O";
static char __pyx_k__Q[] = "Q";
static char __pyx_k__b[] = "b";
static char __pyx_k__d[] = "d";
static char __pyx_k__f[] = "f";
static char __pyx_k__g[] = "g";
static char __pyx_k__h[] = "h";
static char __pyx_k__i[] = "i";
static char __pyx_k__k[] = "k";
static char __pyx_k__l[] = "l";
static char __pyx_k__p[] = "p";
static char __pyx_k__q[] = "q";
static char __pyx_k__r[] = "r";
static char __pyx_k__x[] = "x";
static char __pyx_k__Zd[] = "Zd";
static char __pyx_k__Zf[] = "Zf";
static char __pyx_k__Zg[] = "Zg";
static char __pyx_k__np[] = "np";
static char __pyx_k__eps[] = "eps";
static char __pyx_k__inf[] = "inf";
static char __pyx_k__amax[] = "amax";
static char __pyx_k__amin[] = "amin";
static char __pyx_k__axis[] = "axis";
static char __pyx_k__data[] = "data";
static char __pyx_k__fill[] = "fill";
static char __pyx_k__intp[] = "intp";
static char __pyx_k__prod[] = "prod";
static char __pyx_k__array[] = "array";
static char __pyx_k__dtype[] = "dtype";
static char __pyx_k__empty[] = "empty";
static char __pyx_k__numpy[] = "numpy";
static char __pyx_k__order[] = "order";
static char __pyx_k__other[] = "other";
static char __pyx_k__range[] = "range";
static char __pyx_k__rect1[] = "rect1";
static char __pyx_k__rect2[] = "rect2";
static char __pyx_k__scipy[] = "scipy";
static char __pyx_k__shape[] = "shape";
static char __pyx_k__todok[] = "todok";
static char __pyx_k__zeros[] = "zeros";
static char __pyx_k__arange[] = "arange";
static char __pyx_k__astype[] = "astype";
static char __pyx_k__object[] = "object";
static char __pyx_k__resize[] = "resize";
static char __pyx_k__sparse[] = "sparse";
static char __pyx_k____all__[] = "__all__";
static char __pyx_k__asarray[] = "asarray";
static char __pyx_k__cKDTree[] = "cKDTree";
static char __pyx_k__float64[] = "float64";
static char __pyx_k__ndindex[] = "ndindex";
static char __pyx_k__newaxis[] = "newaxis";
static char __pyx_k__reshape[] = "reshape";
static char __pyx_k____main__[] = "__main__";
static char __pyx_k____test__[] = "__test__";
static char __pyx_k__leafsize[] = "leafsize";
static char __pyx_k__mins_arr[] = "mins_arr";
static char __pyx_k__maxes_arr[] = "maxes_arr";
static char __pyx_k__to_matrix[] = "to_matrix";
static char __pyx_k__ValueError[] = "ValueError";
static char __pyx_k__coo_matrix[] = "coo_matrix";
static char __pyx_k__MemoryError[] = "MemoryError";
static char __pyx_k__upper_bound[] = "upper_bound";
static char __pyx_k__RuntimeError[] = "RuntimeError";
static char __pyx_k__initial_size[] = "initial_size";
static char __pyx_k__max_distance[] = "max_distance";
static char __pyx_k__ascontiguousarray[] = "ascontiguousarray";
static PyObject *__pyx_kp_s_1;
static PyObject *__pyx_kp_s_10;
static PyObject *__pyx_kp_s_19;
static PyObject *__pyx_kp_s_2;
static PyObject *__pyx_kp_s_20;
static PyObject *__pyx_kp_s_22;
static PyObject *__pyx_kp_s_24;
static PyObject *__pyx_kp_s_26;
static PyObject *__pyx_kp_u_28;
static PyObject *__pyx_kp_u_30;
static PyObject *__pyx_kp_u_32;
static PyObject *__pyx_kp_u_34;
static PyObject *__pyx_kp_u_35;
static PyObject *__pyx_kp_u_38;
static PyObject *__pyx_kp_s_4;
static PyObject *__pyx_n_s_40;
static PyObject *__pyx_kp_u_41;
static PyObject *__pyx_kp_u_42;
static PyObject *__pyx_n_s_7;
static PyObject *__pyx_kp_s_9;
static PyObject *__pyx_n_s__C;
static PyObject *__pyx_n_s__MemoryError;
static PyObject *__pyx_n_s__RuntimeError;
static PyObject *__pyx_n_s__ValueError;
static PyObject *__pyx_n_s____all__;
static PyObject *__pyx_n_s____main__;
static PyObject *__pyx_n_s____test__;
static PyObject *__pyx_n_s__amax;
static PyObject *__pyx_n_s__amin;
static PyObject *__pyx_n_s__arange;
static PyObject *__pyx_n_s__array;
static PyObject *__pyx_n_s__asarray;
static PyObject *__pyx_n_s__ascontiguousarray;
static PyObject *__pyx_n_s__astype;
static PyObject *__pyx_n_s__axis;
static PyObject *__pyx_n_s__cKDTree;
static PyObject *__pyx_n_s__coo_matrix;
static PyObject *__pyx_n_s__data;
static PyObject *__pyx_n_s__dtype;
static PyObject *__pyx_n_s__empty;
static PyObject *__pyx_n_s__eps;
static PyObject *__pyx_n_s__fill;
static PyObject *__pyx_n_s__float64;
static PyObject *__pyx_n_s__inf;
static PyObject *__pyx_n_s__initial_size;
static PyObject *__pyx_n_s__intp;
static PyObject *__pyx_n_s__k;
static PyObject *__pyx_n_s__leafsize;
static PyObject *__pyx_n_s__max_distance;
static PyObject *__pyx_n_s__maxes_arr;
static PyObject *__pyx_n_s__mins_arr;
static PyObject *__pyx_n_s__ndindex;
static PyObject *__pyx_n_s__newaxis;
static PyObject *__pyx_n_s__np;
static PyObject *__pyx_n_s__numpy;
static PyObject *__pyx_n_s__object;
static PyObject *__pyx_n_s__order;
static PyObject *__pyx_n_s__other;
static PyObject *__pyx_n_s__p;
static PyObject *__pyx_n_s__prod;
static PyObject *__pyx_n_s__r;
static PyObject *__pyx_n_s__range;
static PyObject *__pyx_n_s__rect1;
static PyObject *__pyx_n_s__rect2;
static PyObject *__pyx_n_s__reshape;
static PyObject *__pyx_n_s__resize;
static PyObject *__pyx_n_s__scipy;
static PyObject *__pyx_n_s__shape;
static PyObject *__pyx_n_s__sparse;
static PyObject *__pyx_n_s__to_matrix;
static PyObject *__pyx_n_s__todok;
static PyObject *__pyx_n_s__upper_bound;
static PyObject *__pyx_n_s__x;
static PyObject *__pyx_n_s__zeros;
static PyObject *__pyx_int_0;
static PyObject *__pyx_int_12;
static PyObject *__pyx_int_15;
static __pyx_t_5numpy_float64_t __pyx_k_8;
static PyObject *__pyx_k_tuple_3;
static PyObject *__pyx_k_tuple_5;
static PyObject *__pyx_k_tuple_6;
static PyObject *__pyx_k_slice_12;
static PyObject *__pyx_k_tuple_11;
static PyObject *__pyx_k_tuple_13;
static PyObject *__pyx_k_tuple_14;
static PyObject *__pyx_k_tuple_15;
static PyObject *__pyx_k_tuple_16;
static PyObject *__pyx_k_tuple_17;
static PyObject *__pyx_k_tuple_18;
static PyObject *__pyx_k_tuple_21;
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        /* "scipy/spatial/ckdtree.pyx":846
 *             for i in range(self.m):
 *                 if maxes[i]-mins[i] > size:
 *                     d = i             # <<<<<<<<<<<<<<
 *                     size =  maxes[i]-mins[i]
 *             maxval = maxes[d]
 */
        __pyx_v_d = __pyx_v_i;

        /* "scipy/spatial/ckdtree.pyx":847
 *                 if maxes[i]-mins[i] > size:
 *                     d = i
 *                     size =  maxes[i]-mins[i]             # <<<<<<<<<<<<<<
 *             maxval = maxes[d]
 *             minval = mins[d]
 */
        __pyx_v_size = ((__pyx_v_maxes[__pyx_v_i]) - (__pyx_v_mins[__pyx_v_i]));
        goto __pyx_L7;
      }
      __pyx_L7:;
    }

    /* "scipy/spatial/ckdtree.pyx":848
 *                     d = i
 *                     size =  maxes[i]-mins[i]
 *             maxval = maxes[d]             # <<<<<<<<<<<<<<
 *             minval = mins[d]
 *             if maxval==minval:
 */
    __pyx_v_maxval = (__pyx_v_maxes[__pyx_v_d]);

    /* "scipy/spatial/ckdtree.pyx":849
 *                     size =  maxes[i]-mins[i]
 *             maxval = maxes[d]
 *             minval = mins[d]             # <<<<<<<<<<<<<<
 *             if maxval==minval:
 *                 # all points are identical; warn user?
 */
    __pyx_v_minval = (__pyx_v_mins[__pyx_v_d]);

    /* "scipy/spatial/ckdtree.pyx":850
 *             maxval = maxes[d]
 *             minval = mins[d]
 *             if maxval==minval:             # <<<<<<<<<<<<<<
 *                 # all points are identical; warn user?
 *                 n = <leafnode*>stdlib.malloc(sizeof(leafnode))
 */
    __pyx_t_1 = (__pyx_v_maxval == __pyx_v_minval);
    if (__pyx_t_1) {

      /* "scipy/spatial/ckdtree.pyx":852
 *             if maxval==minval:
 *                 # all points are identical; warn user?
 *                 n = <leafnode*>stdlib.malloc(sizeof(leafnode))             # <<<<<<<<<<<<<<
 *                 if n == <leafnode*> NULL:
 *                     raise MemoryError
 */
      __pyx_v_n = ((struct __pyx_t_5scipy_7spatial_7ckdtree_leafnode *)malloc((sizeof(struct __pyx_t_5scipy_7spatial_7ckdtree_leafnode))));

      /* "scipy/spatial/ckdtree.pyx":853
 *                 # all points are identical; warn user?
 *                 n = <leafnode*>stdlib.malloc(sizeof(leafnode))
 *                 if n == <leafnode*> NULL:             # <<<<<<<<<<<<<<
 *                     raise MemoryError
 *                 n.split_dim = -1
 */
      __pyx_t_1 = (__pyx_v_n == ((struct __pyx_t_5scipy_7spatial_7ckdtree_leafnode *)NULL));
      if (__pyx_t_1) {

        /* "scipy/spatial/ckdtree.pyx":854
 *                 n = <leafnode*>stdlib.malloc(sizeof(leafnode))
 *                 if n == <leafnode*> NULL:
 *                     raise MemoryError             # <<<<<<<<<<<<<<
 *                 n.split_dim = -1
 *                 n.children = end_idx - start_idx
 */
        PyErr_NoMemory(); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 854; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
        goto __pyx_L9;
      }
      __pyx_L9:;

      /* "scipy/spatial/ckdtree.pyx":855
 *                 if n == <leafnode*> NULL:
 *                     raise MemoryError
 *                 n.split_dim = -1             # <<<<<<<<<<<<<<
 *                 n.children = end_idx - start_idx
 *                 n.start_idx = start_idx
 */
      __pyx_v_n->split_dim = -1;

      /* "scipy/spatial/ckdtree.pyx":856
 *                     raise MemoryError
 *                 n.split_dim = -1
 *                 n.children = end_idx - start_idx             # <<<<<<<<<<<<<<
 *                 n.start_idx = start_idx
 *                 n.end_idx = end_idx
 */
      __pyx_v_n->children = (__pyx_v_end_idx - __pyx_v_start_idx);

      /* "scipy/spatial/ckdtree.pyx":857
 *                 n.split_dim = -1
 *                 n.children = end_idx - start_idx
 *                 n.start_idx = start_idx             # <<<<<<<<<<<<<<
 *                 n.end_idx = end_idx
 *                 return <innernode*>n
 */
      __pyx_v_n->start_idx = __pyx_v_start_idx;

      /* "scipy/spatial/ckdtree.pyx":858
 *                 n.children = end_idx - start_idx
 *                 n.start_idx = start_idx
 *                 n.end_idx = end_idx             # <<<<<<<<<<<<<<
 *                 return <innernode*>n
 * 
 */
      __pyx_v_n->end_idx = __pyx_v_end_idx;

      /* "scipy/spatial/ckdtree.pyx":859
 *                 n.start_idx = start_idx
 *                 n.end_idx = end_idx
 *                 return <innernode*>n             # <<<<<<<<<<<<<<
 * 
 *             split = (maxval+minval)/2
 */
      __pyx_r = ((struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *)__pyx_v_n);
      goto __pyx_L0;
      goto __pyx_L8;
    }
    __pyx_L8:;

    /* "scipy/spatial/ckdtree.pyx":861
 *                 return <innernode*>n
 * 
 *             split = (maxval+minval)/2             # <<<<<<<<<<<<<<
 * 
 *             p = start_idx
 */
    __pyx_v_split = ((__pyx_v_maxval + __pyx_v_minval) / 2.0);

    /* "scipy/spatial/ckdtree.pyx":863
 *             split = (maxval+minval)/2
 * 
 *             p = start_idx             # <<<<<<<<<<<<<<
 *             q = end_idx-1
 *             while p<=q:
 */
    __pyx_v_p = __pyx_v_start_idx;

    /* "scipy/spatial/ckdtree.pyx":864
 * 
 *             p = start_idx
 *             q = end_idx-1             # <<<<<<<<<<<<<<
 *             while p<=q:
 *                 if self.raw_data[self.raw_indices[p]*self.m+d]<split:
 */
    __pyx_v_q = (__pyx_v_end_idx - 1);

    /* "scipy/spatial/ckdtree.pyx":865
 *             p = start_idx
 *             q = end_idx-1
 *             while p<=q:             # <<<<<<<<<<<<<<
 *                 if self.raw_data[self.raw_indices[p]*self.m+d]<split:
 *                     p+=1
 */
    while (1) {
      __pyx_t_1 = (__pyx_v_p <= __pyx_v_q);
      if (!__pyx_t_1) break;

      /* "scipy/spatial/ckdtree.pyx":866
 *             q = end_idx-1
 *             while p<=q:
 *                 if self.raw_data[self.raw_indices[p]*self.m+d]<split:             # <<<<<<<<<<<<<<
 *                     p+=1
 *                 elif self.raw_data[self.raw_indices[q]*self.m+d]>=split:
 */
      __pyx_t_1 = ((__pyx_v_self->raw_data[(((__pyx_v_self->raw_indices[__pyx_v_p]) * __pyx_v_self->m) + __pyx_v_d)]) < __pyx_v_split);
      if (__pyx_t_1) {

        /* "scipy/spatial/ckdtree.pyx":867
 *             while p<=q:
 *                 if self.raw_data[self.raw_indices[p]*self.m+d]<split:
 *                     p+=1             # <<<<<<<<<<<<<<
 *                 elif self.raw_data[self.raw_indices[q]*self.m+d]>=split:
 *                     q-=1
 */
        __pyx_v_p = (__pyx_v_p + 1);
        goto __pyx_L12;
      }

      /* "scipy/spatial/ckdtree.pyx":868
 *                 if self.raw_data[self.raw_indices[p]*self.m+d]<split:
 *                     p+=1
 *                 elif self.raw_data[self.raw_indices[q]*self.m+d]>=split:             # <<<<<<<<<<<<<<
 *                     q-=1
 *                 else:
 */
      __pyx_t_1 = ((__pyx_v_self->raw_data[(((__pyx_v_self->raw_indices[__pyx_v_q]) * __pyx_v_self->m) + __pyx_v_d)]) >= __pyx_v_split);
      if (__pyx_t_1) {

        /* "scipy/spatial/ckdtree.pyx":869
 *                     p+=1
 *                 elif self.raw_data[self.raw_indices[q]*self.m+d]>=split:
 *                     q-=1             # <<<<<<<<<<<<<<
 *                 else:
 *                     t = self.raw_indices[p]
 */
        __pyx_v_q = (__pyx_v_q - 1);
        goto __pyx_L12;
      }
      /*else*/ {

        /* "scipy/spatial/ckdtree.pyx":871
 *                     q-=1
 *                 else:
 *                     t = self.raw_indices[p]             # <<<<<<<<<<<<<<
 *                     self.raw_indices[p] = self.raw_indices[q]
 *                     self.raw_indices[q] = t
 */
        __pyx_v_t = (__pyx_v_self->raw_indices[__pyx_v_p]);

        /* "scipy/spatial/ckdtree.pyx":872
 *                 else:
 *                     t = self.raw_indices[p]
 *                     self.raw_indices[p] = self.raw_indices[q]             # <<<<<<<<<<<<<<
 *                     self.raw_indices[q] = t
 *                     p+=1
 */
        (__pyx_v_self->raw_indices[__pyx_v_p]) = (__pyx_v_self->raw_indices[__pyx_v_q]);

        /* "scipy/spatial/ckdtree.pyx":873
 *                     t = self.raw_indices[p]
 *                     self.raw_indices[p] = self.raw_indices[q]
 *                     self.raw_indices[q] = t             # <<<<<<<<<<<<<<
 *                     p+=1
 *                     q-=1
 */
        (__pyx_v_self->raw_indices[__pyx_v_q]) = __pyx_v_t;

        /* "scipy/spatial/ckdtree.pyx":874
 *                     self.raw_indices[p] = self.raw_indices[q]
 *                     self.raw_indices[q] = t
 *                     p+=1             # <<<<<<<<<<<<<<
 *                     q-=1
 * 
 */
        __pyx_v_p = (__pyx_v_p + 1);

        /* "scipy/spatial/ckdtree.pyx":875
 *                     self.raw_indices[q] = t
 *                     p+=1
 *                     q-=1             # <<<<<<<<<<<<<<
 * 
 *             # slide midpoint if necessary
 */
        __pyx_v_q = (__pyx_v_q - 1);
      }
      __pyx_L12:;
    }

    /* "scipy/spatial/ckdtree.pyx":878
 * 
 *             # slide midpoint if necessary
 *             if p==start_idx:             # <<<<<<<<<<<<<<
 *                 # no points less than split
 *                 j = start_idx
 */
    __pyx_t_1 = (__pyx_v_p == __pyx_v_start_idx);
    if (__pyx_t_1) {

      /* "scipy/spatial/ckdtree.pyx":880
 *             if p==start_idx:
 *                 # no points less than split
 *                 j = start_idx             # <<<<<<<<<<<<<<
 *                 split = self.raw_data[self.raw_indices[j]*self.m+d]
 *                 for i in range(start_idx+1, end_idx):
 */
      __pyx_v_j = __pyx_v_start_idx;

      /* "scipy/spatial/ckdtree.pyx":881
 *                 # no points less than split
 *                 j = start_idx
 *                 split = self.raw_data[self.raw_indices[j]*self.m+d]             # <<<<<<<<<<<<<<
 *                 for i in range(start_idx+1, end_idx):
 *                     if self.raw_data[self.raw_indices[i]*self.m+d]<split:
 */
      __pyx_v_split = (__pyx_v_self->raw_data[(((__pyx_v_self->raw_indices[__pyx_v_j]) * __pyx_v_self->m) + __pyx_v_d)]);

      /* "scipy/spatial/ckdtree.pyx":882
 *                 j = start_idx
 *                 split = self.raw_data[self.raw_indices[j]*self.m+d]
 *                 for i in range(start_idx+1, end_idx):             # <<<<<<<<<<<<<<
 *                     if self.raw_data[self.raw_indices[i]*self.m+d]<split:
 *                         j = i
 */
      __pyx_t_2 = __pyx_v_end_idx;
      for (__pyx_t_3 = (__pyx_v_start_idx + 1); __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
        __pyx_v_i = __pyx_t_3;

        /* "scipy/spatial/ckdtree.pyx":883
 *                 split = self.raw_data[self.raw_indices[j]*self.m+d]
 *                 for i in range(start_idx+1, end_idx):
 *                     if self.raw_data[self.raw_indices[i]*self.m+d]<split:             # <<<<<<<<<<<<<<
 *                         j = i
 *                         split = self.raw_data[self.raw_indices[j]*self.m+d]
 */
        __pyx_t_1 = ((__pyx_v_self->raw_data[(((__pyx_v_self->raw_indices[__pyx_v_i]) * __pyx_v_self->m) + __pyx_v_d)]) < __pyx_v_split);
        if (__pyx_t_1) {

          /* "scipy/spatial/ckdtree.pyx":884
 *                 for i in range(start_idx+1, end_idx):
 *                     if self.raw_data[self.raw_indices[i]*self.m+d]<split:
 *                         j = i             # <<<<<<<<<<<<<<
 *                         split = self.raw_data[self.raw_indices[j]*self.m+d]
 *                 t = self.raw_indices[start_idx]
 */
          __pyx_v_j = __pyx_v_i;

          /* "scipy/spatial/ckdtree.pyx":885
 *                     if self.raw_data[self.raw_indices[i]*self.m+d]<split:
 *                         j = i
 *                         split = self.raw_data[self.raw_indices[j]*self.m+d]             # <<<<<<<<<<<<<<
 *                 t = self.raw_indices[start_idx]
 *                 self.raw_indices[start_idx] = self.raw_indices[j]
 */
          __pyx_v_split = (__pyx_v_self->raw_data[(((__pyx_v_self->raw_indices[__pyx_v_j]) * __pyx_v_self->m) + __pyx_v_d)]);
          goto __pyx_L16;
        }
        __pyx_L16:;
      }

      /* "scipy/spatial/ckdtree.pyx":886
 *                         j = i
 *                         split = self.raw_data[self.raw_indices[j]*self.m+d]
 *                 t = self.raw_indices[start_idx]             # <<<<<<<<<<<<<<
 *                 self.raw_indices[start_idx] = self.raw_indices[j]
 *                 self.raw_indices[j] = t
 */
      __pyx_v_t = (__pyx_v_self->raw_indices[__pyx_v_start_idx]);

      /* "scipy/spatial/ckdtree.pyx":887
 *                         split = self.raw_data[self.raw_indices[j]*self.m+d]
 *                 t = self.raw_indices[start_idx]
 *                 self.raw_indices[start_idx] = self.raw_indices[j]             # <<<<<<<<<<<<<<
 *                 self.raw_indices[j] = t
 *                 p = start_idx+1
 */
      (__pyx_v_self->raw_indices[__pyx_v_start_idx]) = (__pyx_v_self->raw_indices[__pyx_v_j]);

      /* "scipy/spatial/ckdtree.pyx":888
 *                 t = self.raw_indices[start_idx]
 *                 self.raw_indices[start_idx] = self.raw_indices[j]
 *                 self.raw_indices[j] = t             # <<<<<<<<<<<<<<
 *                 p = start_idx+1
 *                 q = start_idx
 */
      (__pyx_v_self->raw_indices[__pyx_v_j]) = __pyx_v_t;

      /* "scipy/spatial/ckdtree.pyx":889
 *                 self.raw_indices[start_idx] = self.raw_indices[j]
 *                 self.raw_indices[j] = t
 *                 p = start_idx+1             # <<<<<<<<<<<<<<
 *                 q = start_idx
 *             elif p==end_idx:
 */
      __pyx_v_p = (__pyx_v_start_idx + 1);

      /* "scipy/spatial/ckdtree.pyx":890
 *                 self.raw_indices[j] = t
 *                 p = start_idx+1
 *                 q = start_idx             # <<<<<<<<<<<<<<
 *             elif p==end_idx:
 *                 # no points greater than split
 */
      __pyx_v_q = __pyx_v_start_idx;
      goto __pyx_L13;
    }

    /* "scipy/spatial/ckdtree.pyx":891
 *                 p = start_idx+1
 *                 q = start_idx
 *             elif p==end_idx:             # <<<<<<<<<<<<<<
 *                 # no points greater than split
 *                 j = end_idx-1
 */
    __pyx_t_1 = (__pyx_v_p == __pyx_v_end_idx);
    if (__pyx_t_1) {

      /* "scipy/spatial/ckdtree.pyx":893
 *             elif p==end_idx:
 *                 # no points greater than split
 *                 j = end_idx-1             # <<<<<<<<<<<<<<
 *                 split = self.raw_data[self.raw_indices[j]*self.m+d]
 *                 for i in range(start_idx, end_idx-1):
 */
      __pyx_v_j = (__pyx_v_end_idx - 1);

      /* "scipy/spatial/ckdtree.pyx":894
 *                 # no points greater than split
 *                 j = end_idx-1
 *                 split = self.raw_data[self.raw_indices[j]*self.m+d]             # <<<<<<<<<<<<<<
 *                 for i in range(start_idx, end_idx-1):
 *                     if self.raw_data[self.raw_indices[i]*self.m+d]>split:
 */
      __pyx_v_split = (__pyx_v_self->raw_data[(((__pyx_v_self->raw_indices[__pyx_v_j]) * __pyx_v_self->m) + __pyx_v_d)]);

      /* "scipy/spatial/ckdtree.pyx":895
 *                 j = end_idx-1
 *                 split = self.raw_data[self.raw_indices[j]*self.m+d]
 *                 for i in range(start_idx, end_idx-1):             # <<<<<<<<<<<<<<
 *                     if self.raw_data[self.raw_indices[i]*self.m+d]>split:
 *                         j = i
 */
      __pyx_t_4 = (__pyx_v_end_idx - 1);
      for (__pyx_t_2 = __pyx_v_start_idx; __pyx_t_2 < __pyx_t_4; __pyx_t_2+=1) {
        __pyx_v_i = __pyx_t_2;

        /* "scipy/spatial/ckdtree.pyx":896
 *                 split = self.raw_data[self.raw_indices[j]*self.m+d]
 *                 for i in range(start_idx, end_idx-1):
 *                     if self.raw_data[self.raw_indices[i]*self.m+d]>split:             # <<<<<<<<<<<<<<
 *                         j = i
 *                         split = self.raw_data[self.raw_indices[j]*self.m+d]
 */
        __pyx_t_1 = ((__pyx_v_self->raw_data[(((__pyx_v_self->raw_indices[__pyx_v_i]) * __pyx_v_self->m) + __pyx_v_d)]) > __pyx_v_split);
        if (__pyx_t_1) {

          /* "scipy/spatial/ckdtree.pyx":897
 *                 for i in range(start_idx, end_idx-1):
 *                     if self.raw_data[self.raw_indices[i]*self.m+d]>split:
 *                         j = i             # <<<<<<<<<<<<<<
 *                         split = self.raw_data[self.raw_indices[j]*self.m+d]
 *                 t = self.raw_indices[end_idx-1]
 */
          __pyx_v_j = __pyx_v_i;

          /* "scipy/spatial/ckdtree.pyx":898
 *                     if self.raw_data[self.raw_indices[i]*self.m+d]>split:
 *                         j = i
 *                         split = self.raw_data[self.raw_indices[j]*self.m+d]             # <<<<<<<<<<<<<<
 *                 t = self.raw_indices[end_idx-1]
 *                 self.raw_indices[end_idx-1] = self.raw_indices[j]
 */
          __pyx_v_split = (__pyx_v_self->raw_data[(((__pyx_v_self->raw_indices[__pyx_v_j]) * __pyx_v_self->m) + __pyx_v_d)]);
          goto __pyx_L19;
        }
        __pyx_L19:;
      }

      /* "scipy/spatial/ckdtree.pyx":899
 *                         j = i
 *                         split = self.raw_data[self.raw_indices[j]*self.m+d]
 *                 t = self.raw_indices[end_idx-1]             # <<<<<<<<<<<<<<
 *                 self.raw_indices[end_idx-1] = self.raw_indices[j]
 *                 self.raw_indices[j] = t
 */
      __pyx_v_t = (__pyx_v_self->raw_indices[(__pyx_v_end_idx - 1)]);

      /* "scipy/spatial/ckdtree.pyx":900
 *                         split = self.raw_data[self.raw_indices[j]*self.m+d]
 *                 t = self.raw_indices[end_idx-1]
 *                 self.raw_indices[end_idx-1] = self.raw_indices[j]             # <<<<<<<<<<<<<<
 *                 self.raw_indices[j] = t
 *                 p = end_idx-1
 */
      (__pyx_v_self->raw_indices[(__pyx_v_end_idx - 1)]) = (__pyx_v_self->raw_indices[__pyx_v_j]);

      /* "scipy/spatial/ckdtree.pyx":901
 *                 t = self.raw_indices[end_idx-1]
 *                 self.raw_indices[end_idx-1] = self.raw_indices[j]
 *                 self.raw_indices[j] = t             # <<<<<<<<<<<<<<
 *                 p = end_idx-1
 *                 q = end_idx-2
 */
      (__pyx_v_self->raw_indices[__pyx_v_j]) = __pyx_v_t;

      /* "scipy/spatial/ckdtree.pyx":902
 *                 self.raw_indices[end_idx-1] = self.raw_indices[j]
 *                 self.raw_indices[j] = t
 *                 p = end_idx-1             # <<<<<<<<<<<<<<
 *                 q = end_idx-2
 * 
 */
      __pyx_v_p = (__pyx_v_end_idx - 1);

      /* "scipy/spatial/ckdtree.pyx":903
 *                 self.raw_indices[j] = t
 *                 p = end_idx-1
 *                 q = end_idx-2             # <<<<<<<<<<<<<<
 * 
 *             # construct new node representation
 */
      __pyx_v_q = (__pyx_v_end_idx - 2);
      goto __pyx_L13;
    }
    __pyx_L13:;

    /* "scipy/spatial/ckdtree.pyx":906
 * 
 *             # construct new node representation
 *             ni = <innernode*>stdlib.malloc(sizeof(innernode))             # <<<<<<<<<<<<<<
 *             if ni ==  <innernode*> NULL:
 *                 raise MemoryError
 */
    __pyx_v_ni = ((struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *)malloc((sizeof(struct __pyx_t_5scipy_7spatial_7ckdtree_innernode))));

    /* "scipy/spatial/ckdtree.pyx":907
 *             # construct new node representation
 *             ni = <innernode*>stdlib.malloc(sizeof(innernode))
 *             if ni ==  <innernode*> NULL:             # <<<<<<<<<<<<<<
 *                 raise MemoryError
 * 
 */
    __pyx_t_1 = (__pyx_v_ni == ((struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *)NULL));
    if (__pyx_t_1) {

      /* "scipy/spatial/ckdtree.pyx":908
 *             ni = <innernode*>stdlib.malloc(sizeof(innernode))
 *             if ni ==  <innernode*> NULL:
 *                 raise MemoryError             # <<<<<<<<<<<<<<
 * 
 *             try:
 */
      PyErr_NoMemory(); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
      goto __pyx_L20;
    }
    __pyx_L20:;

    /* "scipy/spatial/ckdtree.pyx":910
 *                 raise MemoryError
 * 
 *             try:             # <<<<<<<<<<<<<<
 *                 mids = <np.float64_t*>stdlib.malloc(sizeof(np.float64_t)*self.m)
 *                 if mids == <np.float64_t*> NULL:
 */
    {
      __Pyx_ExceptionSave(&__pyx_t_5, &__pyx_t_6, &__pyx_t_7);
      __Pyx_XGOTREF(__pyx_t_5);
      __Pyx_XGOTREF(__pyx_t_6);
      __Pyx_XGOTREF(__pyx_t_7);
      /*try:*/ {

        /* "scipy/spatial/ckdtree.pyx":911
 * 
 *             try:
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  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5scipy_7spatial_7ckdtree_heap)), ((PyObject *)__pyx_k_tuple_6), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_v_q = ((struct __pyx_obj_5scipy_7spatial_7ckdtree_heap *)__pyx_t_1);
  __pyx_t_1 = 0;

  /* "scipy/spatial/ckdtree.pyx":996
 *         # furthest known neighbor first
 *         # entries are (-distance**p, i)
 *         neighbors = heap(k)             # <<<<<<<<<<<<<<
 * 
 *         inf = inf2 = <nodeinfo*> NULL
 */
  __pyx_t_1 = __Pyx_PyInt_to_py_Py_intptr_t(__pyx_v_k); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 996; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 996; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
  __Pyx_GOTREF(__pyx_t_2);
  PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_1);
  __Pyx_GIVEREF(__pyx_t_1);
  __pyx_t_1 = 0;
  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5scipy_7spatial_7ckdtree_heap)), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 996; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
  __Pyx_GOTREF(__pyx_t_1);
  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
  __pyx_v_neighbors = ((struct __pyx_obj_5scipy_7spatial_7ckdtree_heap *)__pyx_t_1);
  __pyx_t_1 = 0;

  /* "scipy/spatial/ckdtree.pyx":998
 *         neighbors = heap(k)
 * 
 *         inf = inf2 = <nodeinfo*> NULL             # <<<<<<<<<<<<<<
 * 
 *         try:
 */
  __pyx_v_inf = ((struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo *)NULL);
  __pyx_v_inf2 = ((struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo *)NULL);

  /* "scipy/spatial/ckdtree.pyx":1000
 *         inf = inf2 = <nodeinfo*> NULL
 * 
 *         try:             # <<<<<<<<<<<<<<
 *             # set up first nodeinfo
 *             inf = <nodeinfo*>stdlib.malloc(sizeof(nodeinfo)+self.m*sizeof(np.float64_t))
 */
  /*try:*/ {

    /* "scipy/spatial/ckdtree.pyx":1002
 *         try:
 *             # set up first nodeinfo
 *             inf = <nodeinfo*>stdlib.malloc(sizeof(nodeinfo)+self.m*sizeof(np.float64_t))             # <<<<<<<<<<<<<<
 *             if inf == <nodeinfo*> NULL:
 *                 raise MemoryError
 */
    __pyx_v_inf = ((struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo *)malloc(((sizeof(struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo)) + (__pyx_v_self->m * (sizeof(__pyx_t_5numpy_float64_t))))));

    /* "scipy/spatial/ckdtree.pyx":1003
 *             # set up first nodeinfo
 *             inf = <nodeinfo*>stdlib.malloc(sizeof(nodeinfo)+self.m*sizeof(np.float64_t))
 *             if inf == <nodeinfo*> NULL:             # <<<<<<<<<<<<<<
 *                 raise MemoryError
 *             inf.node = self.tree
 */
    __pyx_t_3 = (__pyx_v_inf == ((struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo *)NULL));
    if (__pyx_t_3) {

      /* "scipy/spatial/ckdtree.pyx":1004
 *             inf = <nodeinfo*>stdlib.malloc(sizeof(nodeinfo)+self.m*sizeof(np.float64_t))
 *             if inf == <nodeinfo*> NULL:
 *                 raise MemoryError             # <<<<<<<<<<<<<<
 *             inf.node = self.tree
 *             for i in range(self.m):
 */
      PyErr_NoMemory(); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1004; __pyx_clineno = __LINE__; goto __pyx_L4;}
      goto __pyx_L6;
    }
    __pyx_L6:;

    /* "scipy/spatial/ckdtree.pyx":1005
 *             if inf == <nodeinfo*> NULL:
 *                 raise MemoryError
 *             inf.node = self.tree             # <<<<<<<<<<<<<<
 *             for i in range(self.m):
 *                 inf.side_distances[i] = 0
 */
    __pyx_v_inf->node = __pyx_v_self->tree;

    /* "scipy/spatial/ckdtree.pyx":1006
 *                 raise MemoryError
 *             inf.node = self.tree
 *             for i in range(self.m):             # <<<<<<<<<<<<<<
 *                 inf.side_distances[i] = 0
 *                 t = x[i]-self.raw_maxes[i]
 */
    __pyx_t_4 = __pyx_v_self->m;
    for (__pyx_t_5 = 0; __pyx_t_5 < __pyx_t_4; __pyx_t_5+=1) {
      __pyx_v_i = __pyx_t_5;

      /* "scipy/spatial/ckdtree.pyx":1007
 *             inf.node = self.tree
 *             for i in range(self.m):
 *                 inf.side_distances[i] = 0             # <<<<<<<<<<<<<<
 *                 t = x[i]-self.raw_maxes[i]
 *                 if t>inf.side_distances[i]:
 */
      (__pyx_v_inf->side_distances[__pyx_v_i]) = 0.0;

      /* "scipy/spatial/ckdtree.pyx":1008
 *             for i in range(self.m):
 *                 inf.side_distances[i] = 0
 *                 t = x[i]-self.raw_maxes[i]             # <<<<<<<<<<<<<<
 *                 if t>inf.side_distances[i]:
 *                     inf.side_distances[i] = t
 */
      __pyx_v_t = ((__pyx_v_x[__pyx_v_i]) - (__pyx_v_self->raw_maxes[__pyx_v_i]));

      /* "scipy/spatial/ckdtree.pyx":1009
 *                 inf.side_distances[i] = 0
 *                 t = x[i]-self.raw_maxes[i]
 *                 if t>inf.side_distances[i]:             # <<<<<<<<<<<<<<
 *                     inf.side_distances[i] = t
 *                 else:
 */
      __pyx_t_3 = (__pyx_v_t > (__pyx_v_inf->side_distances[__pyx_v_i]));
      if (__pyx_t_3) {

        /* "scipy/spatial/ckdtree.pyx":1010
 *                 t = x[i]-self.raw_maxes[i]
 *                 if t>inf.side_distances[i]:
 *                     inf.side_distances[i] = t             # <<<<<<<<<<<<<<
 *                 else:
 *                     t = self.raw_mins[i]-x[i]
 */
        (__pyx_v_inf->side_distances[__pyx_v_i]) = __pyx_v_t;
        goto __pyx_L9;
      }
      /*else*/ {

        /* "scipy/spatial/ckdtree.pyx":1012
 *                     inf.side_distances[i] = t
 *                 else:
 *                     t = self.raw_mins[i]-x[i]             # <<<<<<<<<<<<<<
 *                     if t>inf.side_distances[i]:
 *                         inf.side_distances[i] = t
 */
        __pyx_v_t = ((__pyx_v_self->raw_mins[__pyx_v_i]) - (__pyx_v_x[__pyx_v_i]));

        /* "scipy/spatial/ckdtree.pyx":1013
 *                 else:
 *                     t = self.raw_mins[i]-x[i]
 *                     if t>inf.side_distances[i]:             # <<<<<<<<<<<<<<
 *                         inf.side_distances[i] = t
 *                 if p!=1 and p!=infinity:
 */
        __pyx_t_3 = (__pyx_v_t > (__pyx_v_inf->side_distances[__pyx_v_i]));
        if (__pyx_t_3) {

          /* "scipy/spatial/ckdtree.pyx":1014
 *                     t = self.raw_mins[i]-x[i]
 *                     if t>inf.side_distances[i]:
 *                         inf.side_distances[i] = t             # <<<<<<<<<<<<<<
 *                 if p!=1 and p!=infinity:
 *                     inf.side_distances[i]=inf.side_distances[i]**p
 */
          (__pyx_v_inf->side_distances[__pyx_v_i]) = __pyx_v_t;
          goto __pyx_L10;
        }
        __pyx_L10:;
      }
      __pyx_L9:;

      /* "scipy/spatial/ckdtree.pyx":1015
 *                     if t>inf.side_distances[i]:
 *                         inf.side_distances[i] = t
 *                 if p!=1 and p!=infinity:             # <<<<<<<<<<<<<<
 *                     inf.side_distances[i]=inf.side_distances[i]**p
 * 
 */
      __pyx_t_3 = (__pyx_v_p != 1.0);
      if (__pyx_t_3) {
        __pyx_t_6 = (__pyx_v_p != __pyx_v_5scipy_7spatial_7ckdtree_infinity);
        __pyx_t_7 = __pyx_t_6;
      } else {
        __pyx_t_7 = __pyx_t_3;
      }
      if (__pyx_t_7) {

        /* "scipy/spatial/ckdtree.pyx":1016
 *                         inf.side_distances[i] = t
 *                 if p!=1 and p!=infinity:
 *                     inf.side_distances[i]=inf.side_distances[i]**p             # <<<<<<<<<<<<<<
 * 
 *             # compute first distance
 */
        (__pyx_v_inf->side_distances[__pyx_v_i]) = pow((__pyx_v_inf->side_distances[__pyx_v_i]), __pyx_v_p);
        goto __pyx_L11;
      }
      __pyx_L11:;
    }

    /* "scipy/spatial/ckdtree.pyx":1019
 * 
 *             # compute first distance
 *             min_distance = 0.             # <<<<<<<<<<<<<<
 *             for i in range(self.m):
 *                 if p==infinity:
 */
    __pyx_v_min_distance = 0.;

    /* "scipy/spatial/ckdtree.pyx":1020
 *             # compute first distance
 *             min_distance = 0.
 *             for i in range(self.m):             # <<<<<<<<<<<<<<
 *                 if p==infinity:
 *                     min_distance = dmax(min_distance,inf.side_distances[i])
 */
    __pyx_t_4 = __pyx_v_self->m;
    for (__pyx_t_5 = 0; __pyx_t_5 < __pyx_t_4; __pyx_t_5+=1) {
      __pyx_v_i = __pyx_t_5;

      /* "scipy/spatial/ckdtree.pyx":1021
 *             min_distance = 0.
 *             for i in range(self.m):
 *                 if p==infinity:             # <<<<<<<<<<<<<<
 *                     min_distance = dmax(min_distance,inf.side_distances[i])
 *                 else:
 */
      __pyx_t_7 = (__pyx_v_p == __pyx_v_5scipy_7spatial_7ckdtree_infinity);
      if (__pyx_t_7) {

        /* "scipy/spatial/ckdtree.pyx":1022
 *             for i in range(self.m):
 *                 if p==infinity:
 *                     min_distance = dmax(min_distance,inf.side_distances[i])             # <<<<<<<<<<<<<<
 *                 else:
 *                     min_distance += inf.side_distances[i]
 */
        __pyx_v_min_distance = __pyx_f_5scipy_7spatial_7ckdtree_dmax(__pyx_v_min_distance, (__pyx_v_inf->side_distances[__pyx_v_i]));
        goto __pyx_L14;
      }
      /*else*/ {

        /* "scipy/spatial/ckdtree.pyx":1024
 *                     min_distance = dmax(min_distance,inf.side_distances[i])
 *                 else:
 *                     min_distance += inf.side_distances[i]             # <<<<<<<<<<<<<<
 * 
 *             # fiddle approximation factor
 */
        __pyx_v_min_distance = (__pyx_v_min_distance + (__pyx_v_inf->side_distances[__pyx_v_i]));
      }
      __pyx_L14:;
    }

    /* "scipy/spatial/ckdtree.pyx":1027
 * 
 *             # fiddle approximation factor
 *             if eps==0:             # <<<<<<<<<<<<<<
 *                 epsfac=1
 *             elif p==infinity:
 */
    __pyx_t_7 = (__pyx_v_eps == 0.0);
    if (__pyx_t_7) {

      /* "scipy/spatial/ckdtree.pyx":1028
 *             # fiddle approximation factor
 *             if eps==0:
 *                 epsfac=1             # <<<<<<<<<<<<<<
 *             elif p==infinity:
 *                 epsfac = 1/(1+eps)
 */
      __pyx_v_epsfac = 1.0;
      goto __pyx_L15;
    }

    /* "scipy/spatial/ckdtree.pyx":1029
 *             if eps==0:
 *                 epsfac=1
 *             elif p==infinity:             # <<<<<<<<<<<<<<
 *                 epsfac = 1/(1+eps)
 *             else:
 */
    __pyx_t_7 = (__pyx_v_p == __pyx_v_5scipy_7spatial_7ckdtree_infinity);
    if (__pyx_t_7) {

      /* "scipy/spatial/ckdtree.pyx":1030
 *                 epsfac=1
 *             elif p==infinity:
 *                 epsfac = 1/(1+eps)             # <<<<<<<<<<<<<<
 *             else:
 *                 epsfac = 1/(1+eps)**p
 */
      __pyx_t_8 = (1.0 + __pyx_v_eps);
      if (unlikely(__pyx_t_8 == 0)) {
        PyErr_Format(PyExc_ZeroDivisionError, "float division");
        {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1030; __pyx_clineno = __LINE__; goto __pyx_L4;}
      }
      __pyx_v_epsfac = (1.0 / __pyx_t_8);
      goto __pyx_L15;
    }
    /*else*/ {

      /* "scipy/spatial/ckdtree.pyx":1032
 *                 epsfac = 1/(1+eps)
 *             else:
 *                 epsfac = 1/(1+eps)**p             # <<<<<<<<<<<<<<
 * 
 *             # internally we represent all distances as distance**p
 */
      __pyx_t_8 = pow((1.0 + __pyx_v_eps), __pyx_v_p);
      if (unlikely(__pyx_t_8 == 0)) {
        PyErr_Format(PyExc_ZeroDivisionError, "float division");
        {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1032; __pyx_clineno = __LINE__; goto __pyx_L4;}
      }
      __pyx_v_epsfac = (1.0 / __pyx_t_8);
    }
    __pyx_L15:;

    /* "scipy/spatial/ckdtree.pyx":1035
 * 
 *             # internally we represent all distances as distance**p
 *             if p!=infinity and distance_upper_bound!=infinity:             # <<<<<<<<<<<<<<
 *                 distance_upper_bound = distance_upper_bound**p
 * 
 */
    __pyx_t_7 = (__pyx_v_p != __pyx_v_5scipy_7spatial_7ckdtree_infinity);
    if (__pyx_t_7) {
      __pyx_t_3 = (__pyx_v_distance_upper_bound != __pyx_v_5scipy_7spatial_7ckdtree_infinity);
      __pyx_t_6 = __pyx_t_3;
    } else {
      __pyx_t_6 = __pyx_t_7;
    }
    if (__pyx_t_6) {

      /* "scipy/spatial/ckdtree.pyx":1036
 *             # internally we represent all distances as distance**p
 *             if p!=infinity and distance_upper_bound!=infinity:
 *                 distance_upper_bound = distance_upper_bound**p             # <<<<<<<<<<<<<<
 * 
 *             while True:
 */
      __pyx_v_distance_upper_bound = pow(__pyx_v_distance_upper_bound, __pyx_v_p);
      goto __pyx_L16;
    }
    __pyx_L16:;

    /* "scipy/spatial/ckdtree.pyx":1038
 *                 distance_upper_bound = distance_upper_bound**p
 * 
 *             while True:             # <<<<<<<<<<<<<<
 *                 if inf.node.split_dim==-1:
 *                     node = <leafnode*>inf.node
 */
    while (1) {
      if (!1) break;

      /* "scipy/spatial/ckdtree.pyx":1039
 * 
 *             while True:
 *                 if inf.node.split_dim==-1:             # <<<<<<<<<<<<<<
 *                     node = <leafnode*>inf.node
 * 
 */
      __pyx_t_6 = (__pyx_v_inf->node->split_dim == -1);
      if (__pyx_t_6) {

        /* "scipy/spatial/ckdtree.pyx":1040
 *             while True:
 *                 if inf.node.split_dim==-1:
 *                     node = <leafnode*>inf.node             # <<<<<<<<<<<<<<
 * 
 *                     # brute-force
 */
        __pyx_v_node = ((struct __pyx_t_5scipy_7spatial_7ckdtree_leafnode *)__pyx_v_inf->node);

        /* "scipy/spatial/ckdtree.pyx":1043
 * 
 *                     # brute-force
 *                     for i in range(node.start_idx,node.end_idx):             # <<<<<<<<<<<<<<
 *                         d = _distance_p(
 *                                 self.raw_data+self.raw_indices[i]*self.m,
 */
        __pyx_t_4 = __pyx_v_node->end_idx;
        for (__pyx_t_5 = __pyx_v_node->start_idx; __pyx_t_5 < __pyx_t_4; __pyx_t_5+=1) {
          __pyx_v_i = __pyx_t_5;

          /* "scipy/spatial/ckdtree.pyx":1046
 *                         d = _distance_p(
 *                                 self.raw_data+self.raw_indices[i]*self.m,
 *                                 x,p,self.m,distance_upper_bound)             # <<<<<<<<<<<<<<
 * 
 *                         if d<distance_upper_bound:
 */
          __pyx_v_d = __pyx_f_5scipy_7spatial_7ckdtree__distance_p((__pyx_v_self->raw_data + ((__pyx_v_self->raw_indices[__pyx_v_i]) * __pyx_v_self->m)), __pyx_v_x, __pyx_v_p, __pyx_v_self->m, __pyx_v_distance_upper_bound);

          /* "scipy/spatial/ckdtree.pyx":1048
 *                                 x,p,self.m,distance_upper_bound)
 * 
 *                         if d<distance_upper_bound:             # <<<<<<<<<<<<<<
 *                             # replace furthest neighbor
 *                             if neighbors.n==k:
 */
          __pyx_t_6 = (__pyx_v_d < __pyx_v_distance_upper_bound);
          if (__pyx_t_6) {

            /* "scipy/spatial/ckdtree.pyx":1050
 *                         if d<distance_upper_bound:
 *                             # replace furthest neighbor
 *                             if neighbors.n==k:             # <<<<<<<<<<<<<<
 *                                 neighbors.remove()
 *                             neighbor.priority = -d
 */
            __pyx_t_6 = (__pyx_v_neighbors->n == __pyx_v_k);
            if (__pyx_t_6) {

              /* "scipy/spatial/ckdtree.pyx":1051
 *                             # replace furthest neighbor
 *                             if neighbors.n==k:
 *                                 neighbors.remove()             # <<<<<<<<<<<<<<
 *                             neighbor.priority = -d
 *                             neighbor.contents.intdata = self.raw_indices[i]
 */
              __pyx_t_9 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_heap *)__pyx_v_neighbors->__pyx_vtab)->remove(__pyx_v_neighbors); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1051; __pyx_clineno = __LINE__; goto __pyx_L4;}
              goto __pyx_L23;
            }
            __pyx_L23:;

            /* "scipy/spatial/ckdtree.pyx":1052
 *                             if neighbors.n==k:
 *                                 neighbors.remove()
 *                             neighbor.priority = -d             # <<<<<<<<<<<<<<
 *                             neighbor.contents.intdata = self.raw_indices[i]
 *                             neighbors.push(neighbor)
 */
            __pyx_v_neighbor.priority = (-__pyx_v_d);

            /* "scipy/spatial/ckdtree.pyx":1053
 *                                 neighbors.remove()
 *                             neighbor.priority = -d
 *                             neighbor.contents.intdata = self.raw_indices[i]             # <<<<<<<<<<<<<<
 *                             neighbors.push(neighbor)
 * 
 */
            __pyx_v_neighbor.contents.intdata = (__pyx_v_self->raw_indices[__pyx_v_i]);

            /* "scipy/spatial/ckdtree.pyx":1054
 *                             neighbor.priority = -d
 *                             neighbor.contents.intdata = self.raw_indices[i]
 *                             neighbors.push(neighbor)             # <<<<<<<<<<<<<<
 * 
 *                             # adjust upper bound for efficiency
 */
            __pyx_t_9 = __pyx_f_5scipy_7spatial_7ckdtree_4heap_push(__pyx_v_neighbors, __pyx_v_neighbor); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1054; __pyx_clineno = __LINE__; goto __pyx_L4;}

            /* "scipy/spatial/ckdtree.pyx":1057
 * 
 *                             # adjust upper bound for efficiency
 *                             if neighbors.n==k:             # <<<<<<<<<<<<<<
 *                                 distance_upper_bound = -neighbors.peek().priority
 * 
 */
            __pyx_t_6 = (__pyx_v_neighbors->n == __pyx_v_k);
            if (__pyx_t_6) {

              /* "scipy/spatial/ckdtree.pyx":1058
 *                             # adjust upper bound for efficiency
 *                             if neighbors.n==k:
 *                                 distance_upper_bound = -neighbors.peek().priority             # <<<<<<<<<<<<<<
 * 
 *                     # done with this node, get another
 */
              __pyx_v_distance_upper_bound = (-((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_heap *)__pyx_v_neighbors->__pyx_vtab)->peek(__pyx_v_neighbors).priority);
              goto __pyx_L24;
            }
            __pyx_L24:;
            goto __pyx_L22;
          }
          __pyx_L22:;
        }

        /* "scipy/spatial/ckdtree.pyx":1061
 * 
 *                     # done with this node, get another
 *                     stdlib.free(inf)             # <<<<<<<<<<<<<<
 *                     inf = <nodeinfo*> NULL
 * 
 */
        free(__pyx_v_inf);

        /* "scipy/spatial/ckdtree.pyx":1062
 *                     # done with this node, get another
 *                     stdlib.free(inf)
 *                     inf = <nodeinfo*> NULL             # <<<<<<<<<<<<<<
 * 
 *                     if q.n==0:
 */
        __pyx_v_inf = ((struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo *)NULL);

        /* "scipy/spatial/ckdtree.pyx":1064
 *                     inf = <nodeinfo*> NULL
 * 
 *                     if q.n==0:             # <<<<<<<<<<<<<<
 *                         # no more nodes to visit
 *                         break
 */
        __pyx_t_6 = (__pyx_v_q->n == 0);
        if (__pyx_t_6) {

          /* "scipy/spatial/ckdtree.pyx":1066
 *                     if q.n==0:
 *                         # no more nodes to visit
 *                         break             # <<<<<<<<<<<<<<
 *                     else:
 *                         q.pop(&it)
 */
          goto __pyx_L18_break;
          goto __pyx_L25;
        }
        /*else*/ {

          /* "scipy/spatial/ckdtree.pyx":1068
 *                         break
 *                     else:
 *                         q.pop(&it)             # <<<<<<<<<<<<<<
 *                         inf = <nodeinfo*>it.contents.ptrdata
 *                         min_distance = it.priority
 */
          __pyx_t_9 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_heap *)__pyx_v_q->__pyx_vtab)->pop(__pyx_v_q, (&__pyx_v_it)); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1068; __pyx_clineno = __LINE__; goto __pyx_L4;}

          /* "scipy/spatial/ckdtree.pyx":1069
 *                     else:
 *                         q.pop(&it)
 *                         inf = <nodeinfo*>it.contents.ptrdata             # <<<<<<<<<<<<<<
 *                         min_distance = it.priority
 *                 else:
 */
          __pyx_v_inf = ((struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo *)__pyx_v_it.contents.ptrdata);

          /* "scipy/spatial/ckdtree.pyx":1070
 *                         q.pop(&it)
 *                         inf = <nodeinfo*>it.contents.ptrdata
 *                         min_distance = it.priority             # <<<<<<<<<<<<<<
 *                 else:
 *                     inode = <innernode*>inf.node
 */
          __pyx_v_min_distance = __pyx_v_it.priority;
        }
        __pyx_L25:;
        goto __pyx_L19;
      }
      /*else*/ {

        /* "scipy/spatial/ckdtree.pyx":1072
 *                         min_distance = it.priority
 *                 else:
 *                     inode = <innernode*>inf.node             # <<<<<<<<<<<<<<
 * 
 *                     # we don't push cells that are too far onto the queue at all,
 */
        __pyx_v_inode = ((struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *)__pyx_v_inf->node);

        /* "scipy/spatial/ckdtree.pyx":1077
 *                     # but since the distance_upper_bound decreases, we might get
 *                     # here even if the cell's too far
 *                     if min_distance>distance_upper_bound*epsfac:             # <<<<<<<<<<<<<<
 * 
 *                         # since this is the nearest cell, we're done, bail out
 */
        __pyx_t_6 = (__pyx_v_min_distance > (__pyx_v_distance_upper_bound * __pyx_v_epsfac));
        if (__pyx_t_6) {

          /* "scipy/spatial/ckdtree.pyx":1080
 * 
 *                         # since this is the nearest cell, we're done, bail out
 *                         stdlib.free(inf)             # <<<<<<<<<<<<<<
 *                         inf = <nodeinfo*> NULL
 * 
 */
          free(__pyx_v_inf);

          /* "scipy/spatial/ckdtree.pyx":1081
 *                         # since this is the nearest cell, we're done, bail out
 *                         stdlib.free(inf)
 *                         inf = <nodeinfo*> NULL             # <<<<<<<<<<<<<<
 * 
 *                         # free all the nodes still on the heap
 */
          __pyx_v_inf = ((struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo *)NULL);

          /* "scipy/spatial/ckdtree.pyx":1084
 * 
 *                         # free all the nodes still on the heap
 *                         for i in range(q.n):             # <<<<<<<<<<<<<<
 *                             stdlib.free(q.heap[i].contents.ptrdata)
 *                             q.heap[i].contents.ptrdata = <char*> NULL
 */
          __pyx_t_4 = __pyx_v_q->n;
          for (__pyx_t_5 = 0; __pyx_t_5 < __pyx_t_4; __pyx_t_5+=1) {
            __pyx_v_i = __pyx_t_5;

            /* "scipy/spatial/ckdtree.pyx":1085
 *                         # free all the nodes still on the heap
 *                         for i in range(q.n):
 *                             stdlib.free(q.heap[i].contents.ptrdata)             # <<<<<<<<<<<<<<
 *                             q.heap[i].contents.ptrdata = <char*> NULL
 *                         break
 */
            free((__pyx_v_q->heap[__pyx_v_i]).contents.ptrdata);

            /* "scipy/spatial/ckdtree.pyx":1086
 *                         for i in range(q.n):
 *                             stdlib.free(q.heap[i].contents.ptrdata)
 *                             q.heap[i].contents.ptrdata = <char*> NULL             # <<<<<<<<<<<<<<
 *                         break
 * 
 */
            (__pyx_v_q->heap[__pyx_v_i]).contents.ptrdata = ((char *)NULL);
          }

          /* "scipy/spatial/ckdtree.pyx":1087
 *                             stdlib.free(q.heap[i].contents.ptrdata)
 *                             q.heap[i].contents.ptrdata = <char*> NULL
 *                         break             # <<<<<<<<<<<<<<
 * 
 *                     # set up children for searching
 */
          goto __pyx_L18_break;
          goto __pyx_L26;
        }
        __pyx_L26:;

        /* "scipy/spatial/ckdtree.pyx":1090
 * 
 *                     # set up children for searching
 *                     if x[inode.split_dim]<inode.split:             # <<<<<<<<<<<<<<
 *                         near = inode.less
 *                         far = inode.greater
 */
        __pyx_t_6 = ((__pyx_v_x[__pyx_v_inode->split_dim]) < __pyx_v_inode->split);
        if (__pyx_t_6) {

          /* "scipy/spatial/ckdtree.pyx":1091
 *                     # set up children for searching
 *                     if x[inode.split_dim]<inode.split:
 *                         near = inode.less             # <<<<<<<<<<<<<<
 *                         far = inode.greater
 *                     else:
 */
          __pyx_v_near = __pyx_v_inode->less;

          /* "scipy/spatial/ckdtree.pyx":1092
 *                     if x[inode.split_dim]<inode.split:
 *                         near = inode.less
 *                         far = inode.greater             # <<<<<<<<<<<<<<
 *                     else:
 *                         near = inode.greater
 */
          __pyx_v_far = __pyx_v_inode->greater;
          goto __pyx_L29;
        }
        /*else*/ {

          /* "scipy/spatial/ckdtree.pyx":1094
 *                         far = inode.greater
 *                     else:
 *                         near = inode.greater             # <<<<<<<<<<<<<<
 *                         far = inode.less
 * 
 */
          __pyx_v_near = __pyx_v_inode->greater;

          /* "scipy/spatial/ckdtree.pyx":1095
 *                     else:
 *                         near = inode.greater
 *                         far = inode.less             # <<<<<<<<<<<<<<
 * 
 *                     # near child is at the same distance as the current node
 */
          __pyx_v_far = __pyx_v_inode->less;
        }
        __pyx_L29:;

        /* "scipy/spatial/ckdtree.pyx":1100
 *                     # we're going here next, so no point pushing it on the queue
 *                     # no need to recompute the distance or the side_distances
 *                     inf.node = near             # <<<<<<<<<<<<<<
 * 
 *                     # far child is further by an amount depending only
 */
        __pyx_v_inf->node = __pyx_v_near;

        /* "scipy/spatial/ckdtree.pyx":1105
 *                     # on the split value; compute its distance and side_distances
 *                     # and push it on the queue if it's near enough
 *                     inf2 = <nodeinfo*>stdlib.malloc(sizeof(nodeinfo)+self.m*sizeof(np.float64_t))             # <<<<<<<<<<<<<<
 *                     if inf2 == <nodeinfo*> NULL:
 *                         raise MemoryError
 */
        __pyx_v_inf2 = ((struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo *)malloc(((sizeof(struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo)) + (__pyx_v_self->m * (sizeof(__pyx_t_5numpy_float64_t))))));

        /* "scipy/spatial/ckdtree.pyx":1106
 *                     # and push it on the queue if it's near enough
 *                     inf2 = <nodeinfo*>stdlib.malloc(sizeof(nodeinfo)+self.m*sizeof(np.float64_t))
 *                     if inf2 == <nodeinfo*> NULL:             # <<<<<<<<<<<<<<
 *                         raise MemoryError
 * 
 */
        __pyx_t_6 = (__pyx_v_inf2 == ((struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo *)NULL));
        if (__pyx_t_6) {

          /* "scipy/spatial/ckdtree.pyx":1107
 *                     inf2 = <nodeinfo*>stdlib.malloc(sizeof(nodeinfo)+self.m*sizeof(np.float64_t))
 *                     if inf2 == <nodeinfo*> NULL:
 *                         raise MemoryError             # <<<<<<<<<<<<<<
 * 
 *                     it2.contents.ptrdata = <char*> inf2
 */
          PyErr_NoMemory(); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1107; __pyx_clineno = __LINE__; goto __pyx_L4;}
          goto __pyx_L30;
        }
        __pyx_L30:;

        /* "scipy/spatial/ckdtree.pyx":1109
 *                         raise MemoryError
 * 
 *                     it2.contents.ptrdata = <char*> inf2             # <<<<<<<<<<<<<<
 *                     inf2.node = far
 *                     # most side distances unchanged
 */
        __pyx_v_it2.contents.ptrdata = ((char *)__pyx_v_inf2);

        /* "scipy/spatial/ckdtree.pyx":1110
 * 
 *                     it2.contents.ptrdata = <char*> inf2
 *                     inf2.node = far             # <<<<<<<<<<<<<<
 *                     # most side distances unchanged
 *                     for i in range(self.m):
 */
        __pyx_v_inf2->node = __pyx_v_far;

        /* "scipy/spatial/ckdtree.pyx":1112
 *                     inf2.node = far
 *                     # most side distances unchanged
 *                     for i in range(self.m):             # <<<<<<<<<<<<<<
 *                         inf2.side_distances[i] = inf.side_distances[i]
 * 
 */
        __pyx_t_4 = __pyx_v_self->m;
        for (__pyx_t_5 = 0; __pyx_t_5 < __pyx_t_4; __pyx_t_5+=1) {
          __pyx_v_i = __pyx_t_5;

          /* "scipy/spatial/ckdtree.pyx":1113
 *                     # most side distances unchanged
 *                     for i in range(self.m):
 *                         inf2.side_distances[i] = inf.side_distances[i]             # <<<<<<<<<<<<<<
 * 
 *                     # one side distance changes
 */
          (__pyx_v_inf2->side_distances[__pyx_v_i]) = (__pyx_v_inf->side_distances[__pyx_v_i]);
        }

        /* "scipy/spatial/ckdtree.pyx":1117
 *                     # one side distance changes
 *                     # we can adjust the minimum distance without recomputing
 *                     if p == infinity:             # <<<<<<<<<<<<<<
 *                         # we never use side_distances in the l_infinity case
 *                         # inf2.side_distances[inode.split_dim] = dabs(inode.split-x[inode.split_dim])
 */
        __pyx_t_6 = (__pyx_v_p == __pyx_v_5scipy_7spatial_7ckdtree_infinity);
        if (__pyx_t_6) {

          /* "scipy/spatial/ckdtree.pyx":1120
 *                         # we never use side_distances in the l_infinity case
 *                         # inf2.side_distances[inode.split_dim] = dabs(inode.split-x[inode.split_dim])
 *                         far_min_distance = dmax(min_distance, dabs(inode.split-x[inode.split_dim]))             # <<<<<<<<<<<<<<
 *                     elif p == 1:
 *                         inf2.side_distances[inode.split_dim] = dabs(inode.split-x[inode.split_dim])
 */
          __pyx_v_far_min_distance = __pyx_f_5scipy_7spatial_7ckdtree_dmax(__pyx_v_min_distance, __pyx_f_5scipy_7spatial_7ckdtree_dabs((__pyx_v_inode->split - (__pyx_v_x[__pyx_v_inode->split_dim]))));
          goto __pyx_L33;
        }

        /* "scipy/spatial/ckdtree.pyx":1121
 *                         # inf2.side_distances[inode.split_dim] = dabs(inode.split-x[inode.split_dim])
 *                         far_min_distance = dmax(min_distance, dabs(inode.split-x[inode.split_dim]))
 *                     elif p == 1:             # <<<<<<<<<<<<<<
 *                         inf2.side_distances[inode.split_dim] = dabs(inode.split-x[inode.split_dim])
 *                         far_min_distance = min_distance - \
 */
        __pyx_t_6 = (__pyx_v_p == 1.0);
        if (__pyx_t_6) {

          /* "scipy/spatial/ckdtree.pyx":1122
 *                         far_min_distance = dmax(min_distance, dabs(inode.split-x[inode.split_dim]))
 *                     elif p == 1:
 *                         inf2.side_distances[inode.split_dim] = dabs(inode.split-x[inode.split_dim])             # <<<<<<<<<<<<<<
 *                         far_min_distance = min_distance - \
 *                             inf.side_distances[inode.split_dim] + \
 */
          (__pyx_v_inf2->side_distances[__pyx_v_inode->split_dim]) = __pyx_f_5scipy_7spatial_7ckdtree_dabs((__pyx_v_inode->split - (__pyx_v_x[__pyx_v_inode->split_dim])));

          /* "scipy/spatial/ckdtree.pyx":1125
 *                         far_min_distance = min_distance - \
 *                             inf.side_distances[inode.split_dim] + \
 *                             inf2.side_distances[inode.split_dim]             # <<<<<<<<<<<<<<
 *                     else:
 *                         inf2.side_distances[inode.split_dim] = dabs(inode.split -
 */
          __pyx_v_far_min_distance = ((__pyx_v_min_distance - (__pyx_v_inf->side_distances[__pyx_v_inode->split_dim])) + (__pyx_v_inf2->side_distances[__pyx_v_inode->split_dim]));
          goto __pyx_L33;
        }
        /*else*/ {

          /* "scipy/spatial/ckdtree.pyx":1127
 *                             inf2.side_distances[inode.split_dim]
 *                     else:
 *                         inf2.side_distances[inode.split_dim] = dabs(inode.split -             # <<<<<<<<<<<<<<
 *                                                                     x[inode.split_dim])**p
 *                         far_min_distance = min_distance - \
 */
          (__pyx_v_inf2->side_distances[__pyx_v_inode->split_dim]) = pow(__pyx_f_5scipy_7spatial_7ckdtree_dabs((__pyx_v_inode->split - (__pyx_v_x[__pyx_v_inode->split_dim]))), __pyx_v_p);

          /* "scipy/spatial/ckdtree.pyx":1131
 *                         far_min_distance = min_distance - \
 *                             inf.side_distances[inode.split_dim] + \
 *                             inf2.side_distances[inode.split_dim]             # <<<<<<<<<<<<<<
 * 
 *                     it2.priority = far_min_distance
 */
          __pyx_v_far_min_distance = ((__pyx_v_min_distance - (__pyx_v_inf->side_distances[__pyx_v_inode->split_dim])) + (__pyx_v_inf2->side_distances[__pyx_v_inode->split_dim]));
        }
        __pyx_L33:;

        /* "scipy/spatial/ckdtree.pyx":1133
 *                             inf2.side_distances[inode.split_dim]
 * 
 *                     it2.priority = far_min_distance             # <<<<<<<<<<<<<<
 * 
 * 
 */
        __pyx_v_it2.priority = __pyx_v_far_min_distance;

        /* "scipy/spatial/ckdtree.pyx":1137
 * 
 *                     # far child might be too far, if so, don't bother pushing it
 *                     if far_min_distance<=distance_upper_bound*epsfac:             # <<<<<<<<<<<<<<
 *                         q.push(it2)
 *                     else:
 */
        __pyx_t_6 = (__pyx_v_far_min_distance <= (__pyx_v_distance_upper_bound * __pyx_v_epsfac));
        if (__pyx_t_6) {

          /* "scipy/spatial/ckdtree.pyx":1138
 *                     # far child might be too far, if so, don't bother pushing it
 *                     if far_min_distance<=distance_upper_bound*epsfac:
 *                         q.push(it2)             # <<<<<<<<<<<<<<
 *                     else:
 *                         stdlib.free(inf2)
 */
          __pyx_t_9 = __pyx_f_5scipy_7spatial_7ckdtree_4heap_push(__pyx_v_q, __pyx_v_it2); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1138; __pyx_clineno = __LINE__; goto __pyx_L4;}
          goto __pyx_L34;
        }
        /*else*/ {

          /* "scipy/spatial/ckdtree.pyx":1140
 *                         q.push(it2)
 *                     else:
 *                         stdlib.free(inf2)             # <<<<<<<<<<<<<<
 *                         inf2 = <nodeinfo*> NULL
 *                         # just in case
 */
          free(__pyx_v_inf2);

          /* "scipy/spatial/ckdtree.pyx":1141
 *                     else:
 *                         stdlib.free(inf2)
 *                         inf2 = <nodeinfo*> NULL             # <<<<<<<<<<<<<<
 *                         # just in case
 *                         it2.contents.ptrdata = <char*> NULL
 */
          __pyx_v_inf2 = ((struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo *)NULL);

          /* "scipy/spatial/ckdtree.pyx":1143
 *                         inf2 = <nodeinfo*> NULL
 *                         # just in case
 *                         it2.contents.ptrdata = <char*> NULL             # <<<<<<<<<<<<<<
 * 
 *             # fill output arrays with sorted neighbors
 */
          __pyx_v_it2.contents.ptrdata = ((char *)NULL);
        }
        __pyx_L34:;
      }
      __pyx_L19:;
    }
    __pyx_L18_break:;

    /* "scipy/spatial/ckdtree.pyx":1146
 * 
 *             # fill output arrays with sorted neighbors
 *             for i in range(neighbors.n-1,-1,-1):             # <<<<<<<<<<<<<<
 *                 neighbors.pop(&neighbor)
 *                 result_indices[i] = neighbor.contents.intdata
 */
    for (__pyx_t_4 = (__pyx_v_neighbors->n - 1); __pyx_t_4 > -1; __pyx_t_4-=1) {
      __pyx_v_i = __pyx_t_4;

      /* "scipy/spatial/ckdtree.pyx":1147
 *             # fill output arrays with sorted neighbors
 *             for i in range(neighbors.n-1,-1,-1):
 *                 neighbors.pop(&neighbor)             # <<<<<<<<<<<<<<
 *                 result_indices[i] = neighbor.contents.intdata
 *                 if p==1 or p==infinity:
 */
      __pyx_t_9 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_heap *)__pyx_v_neighbors->__pyx_vtab)->pop(__pyx_v_neighbors, (&__pyx_v_neighbor)); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1147; __pyx_clineno = __LINE__; goto __pyx_L4;}

      /* "scipy/spatial/ckdtree.pyx":1148
 *             for i in range(neighbors.n-1,-1,-1):
 *                 neighbors.pop(&neighbor)
 *                 result_indices[i] = neighbor.contents.intdata             # <<<<<<<<<<<<<<
 *                 if p==1 or p==infinity:
 *                     result_distances[i] = -neighbor.priority
 */
      (__pyx_v_result_indices[__pyx_v_i]) = __pyx_v_neighbor.contents.intdata;

      /* "scipy/spatial/ckdtree.pyx":1149
 *                 neighbors.pop(&neighbor)
 *                 result_indices[i] = neighbor.contents.intdata
 *                 if p==1 or p==infinity:             # <<<<<<<<<<<<<<
 *                     result_distances[i] = -neighbor.priority
 *                 else:
 */
      __pyx_t_6 = (__pyx_v_p == 1.0);
      if (!__pyx_t_6) {
        __pyx_t_7 = (__pyx_v_p == __pyx_v_5scipy_7spatial_7ckdtree_infinity);
        __pyx_t_3 = __pyx_t_7;
      } else {
        __pyx_t_3 = __pyx_t_6;
      }
      if (__pyx_t_3) {

        /* "scipy/spatial/ckdtree.pyx":1150
 *                 result_indices[i] = neighbor.contents.intdata
 *                 if p==1 or p==infinity:
 *                     result_distances[i] = -neighbor.priority             # <<<<<<<<<<<<<<
 *                 else:
 *                     result_distances[i] = (-neighbor.priority)**(1./p)
 */
        (__pyx_v_result_distances[__pyx_v_i]) = (-__pyx_v_neighbor.priority);
        goto __pyx_L37;
      }
      /*else*/ {

        /* "scipy/spatial/ckdtree.pyx":1152
 *                     result_distances[i] = -neighbor.priority
 *                 else:
 *                     result_distances[i] = (-neighbor.priority)**(1./p)             # <<<<<<<<<<<<<<
 * 
 *             inf = inf2 = <nodeinfo*> NULL
 */
        if (unlikely(__pyx_v_p == 0)) {
          PyErr_Format(PyExc_ZeroDivisionError, "float division");
          {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1152; __pyx_clineno = __LINE__; goto __pyx_L4;}
        }
        (__pyx_v_result_distances[__pyx_v_i]) = pow((-__pyx_v_neighbor.priority), (1. / __pyx_v_p));
      }
      __pyx_L37:;
    }

    /* "scipy/spatial/ckdtree.pyx":1154
 *                     result_distances[i] = (-neighbor.priority)**(1./p)
 * 
 *             inf = inf2 = <nodeinfo*> NULL             # <<<<<<<<<<<<<<
 * 
 *         finally:
 */
    __pyx_v_inf = ((struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo *)NULL);
    __pyx_v_inf2 = ((struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo *)NULL);
  }

  /* "scipy/spatial/ckdtree.pyx":1157
 * 
 *         finally:
 *             if inf2 != <nodeinfo*> NULL:             # <<<<<<<<<<<<<<
 *                 stdlib.free(inf2)
 * 
 */
  /*finally:*/ {
    int __pyx_why;
    PyObject *__pyx_exc_type, *__pyx_exc_value, *__pyx_exc_tb;
    int __pyx_exc_lineno;
    __pyx_exc_type = 0; __pyx_exc_value = 0; __pyx_exc_tb = 0; __pyx_exc_lineno = 0;
    __pyx_why = 0; goto __pyx_L5;
    __pyx_L4: {
      __pyx_why = 4;
      __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
      __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
      __Pyx_ErrFetch(&__pyx_exc_type, &__pyx_exc_value, &__pyx_exc_tb);
      __pyx_exc_lineno = __pyx_lineno;
      goto __pyx_L5;
    }
    __pyx_L5:;
    __pyx_t_3 = (__pyx_v_inf2 != ((struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo *)NULL));
    if (__pyx_t_3) {

      /* "scipy/spatial/ckdtree.pyx":1158
 *         finally:
 *             if inf2 != <nodeinfo*> NULL:
 *                 stdlib.free(inf2)             # <<<<<<<<<<<<<<
 * 
 *             if inf != <nodeinfo*> NULL:
 */
      free(__pyx_v_inf2);
      goto __pyx_L39;
    }
    __pyx_L39:;

    /* "scipy/spatial/ckdtree.pyx":1160
 *                 stdlib.free(inf2)
 * 
 *             if inf != <nodeinfo*> NULL:             # <<<<<<<<<<<<<<
 *                 stdlib.free(inf)
 * 
 */
    __pyx_t_3 = (__pyx_v_inf != ((struct __pyx_t_5scipy_7spatial_7ckdtree_nodeinfo *)NULL));
    if (__pyx_t_3) {

      /* "scipy/spatial/ckdtree.pyx":1161
 * 
 *             if inf != <nodeinfo*> NULL:
 *                 stdlib.free(inf)             # <<<<<<<<<<<<<<
 * 
 *         return 0
 */
      free(__pyx_v_inf);
      goto __pyx_L40;
    }
    __pyx_L40:;
    switch (__pyx_why) {
      case 4: {
        __Pyx_ErrRestore(__pyx_exc_type, __pyx_exc_value, __pyx_exc_tb);
        __pyx_lineno = __pyx_exc_lineno;
        __pyx_exc_type = 0;
        __pyx_exc_value = 0;
        __pyx_exc_tb = 0;
        goto __pyx_L1_error;
      }
    }
  }

  /* "scipy/spatial/ckdtree.pyx":1163
 *                 stdlib.free(inf)
 * 
 *         return 0             # <<<<<<<<<<<<<<
 * 
 * 
 */
  __pyx_r = 0;
  goto __pyx_L0;

  __pyx_r = 0;
  goto __pyx_L0;
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_AddTraceback("scipy.spatial.ckdtree.cKDTree.__query", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = -1;
  __pyx_L0:;
  __Pyx_XDECREF((PyObject *)__pyx_v_q);
  __Pyx_XDECREF((PyObject *)__pyx_v_neighbors);
  __Pyx_RefNannyFinishContext();
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}

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/* Python wrapper */
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static char __pyx_doc_5scipy_7spatial_7ckdtree_7cKDTree_6query_ball_point[] = "query_ball_point(self, x, r, p, eps)\n        \n        Find all points within distance r of point(s) x.\n\n        Parameters\n        ----------\n        x : array_like, shape tuple + (self.m,)\n            The point or points to search for neighbors of.\n        r : positive float\n            The radius of points to return.\n        p : float, optional\n            Which Minkowski p-norm to use.  Should be in the range [1, inf].\n        eps : nonnegative float, optional\n            Approximate search. Branches of the tree are not explored if their\n            nearest points are further than ``r / (1 + eps)``, and branches are\n            added in bulk if their furthest points are nearer than\n            ``r * (1 + eps)``.\n\n        Returns\n        -------\n        results : list or array of lists\n            If `x` is a single point, returns a list of the indices of the\n            neighbors of `x`. If `x` is an array of points, returns an object\n            array of shape tuple containing lists of neighbors.\n\n        Notes\n        -----\n        If you have many points whose neighbors you want to find, you may save\n        substantial amounts of time by putting them in a cKDTree and using\n        query_ball_tree.\n\n        Examples\n        --------\n        >>> from scipy import spatial\n        >>> x, y = np.mgrid[0:4, 0:4]\n        >>> points = zip(x.ravel(), y.ravel())\n        >>> tree = spatial.cKDTree(points)\n        >>> tree.query_ball_point([2, 0], 1)\n        [4, 8, 9, 12]\n\n        ";
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 *         if node1.split_dim == -1:  # leaf node
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 * 
 *             if node2.split_dim == -1:  # leaf node
 */
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 *             if node2.split_dim == -1:  # leaf node             # <<<<<<<<<<<<<<
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 * 
 *             if node2.split_dim == -1:  # leaf node
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 * 
 *                 for i in range(lnode1.start_idx, lnode1.end_idx):
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 * 
 *                 for i in range(lnode1.start_idx, lnode1.end_idx):             # <<<<<<<<<<<<<<
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 * 
 *                 for i in range(lnode1.start_idx, lnode1.end_idx):
 *                     results_i = results[self.raw_indices[i]]             # <<<<<<<<<<<<<<
 *                     for j in range(lnode2.start_idx, lnode2.end_idx):
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 *                 for i in range(lnode1.start_idx, lnode1.end_idx):
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 */
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 *                     results_i = results[self.raw_indices[i]]
 *                     for j in range(lnode2.start_idx, lnode2.end_idx):
 *                         list_append(results_i, other.raw_indices[j])             # <<<<<<<<<<<<<<
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 * 
 */
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 *                 self.__query_ball_tree_traverse_no_checking(other, results, node1, node2.less)             # <<<<<<<<<<<<<<
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      /* "scipy/spatial/ckdtree.pyx":1428
 * 
 *                 self.__query_ball_tree_traverse_no_checking(other, results, node1, node2.less)
 *                 self.__query_ball_tree_traverse_no_checking(other, results, node1, node2.greater)             # <<<<<<<<<<<<<<
 *         else:
 * 
 */
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 *         else:
 * 
 *             self.__query_ball_tree_traverse_no_checking(other, results, node1.less, node2)             # <<<<<<<<<<<<<<
 *             self.__query_ball_tree_traverse_no_checking(other, results, node1.greater, node2)
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 */
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 * 
 *             self.__query_ball_tree_traverse_no_checking(other, results, node1.less, node2)
 *             self.__query_ball_tree_traverse_no_checking(other, results, node1.greater, node2)             # <<<<<<<<<<<<<<
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 *         return 0
 */
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 *             self.__query_ball_tree_traverse_no_checking(other, results, node1.greater, node2)
 * 
 *         return 0             # <<<<<<<<<<<<<<
 * 
 * 
 */
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/* "scipy/spatial/ckdtree.pyx":1438
 * 
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 *                                                  cKDTree other,
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static int __pyx_f_5scipy_7spatial_7ckdtree_7cKDTree___query_ball_tree_traverse_checking(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_self, struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_other, PyObject *__pyx_v_results, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *__pyx_v_node1, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *__pyx_v_node2, struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *__pyx_v_tracker) {
  struct __pyx_t_5scipy_7spatial_7ckdtree_leafnode *__pyx_v_lnode1;
  struct __pyx_t_5scipy_7spatial_7ckdtree_leafnode *__pyx_v_lnode2;
  PyObject *__pyx_v_results_i = 0;
  __pyx_t_5numpy_float64_t __pyx_v_d;
  __pyx_t_5numpy_intp_t __pyx_v_i;
  __pyx_t_5numpy_intp_t __pyx_v_j;
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  __pyx_t_5numpy_intp_t __pyx_t_7;
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 * 
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    /* "scipy/spatial/ckdtree.pyx":1450
 * 
 *         if tracker.min_distance > tracker.upper_bound * tracker.epsfac:
 *             return 0             # <<<<<<<<<<<<<<
 *         elif tracker.max_distance < tracker.upper_bound / tracker.epsfac:
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 */
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  /* "scipy/spatial/ckdtree.pyx":1451
 *         if tracker.min_distance > tracker.upper_bound * tracker.epsfac:
 *             return 0
 *         elif tracker.max_distance < tracker.upper_bound / tracker.epsfac:             # <<<<<<<<<<<<<<
 *             self.__query_ball_tree_traverse_no_checking(other, results, node1, node2)
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    /* "scipy/spatial/ckdtree.pyx":1452
 *             return 0
 *         elif tracker.max_distance < tracker.upper_bound / tracker.epsfac:
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 *         elif node1.split_dim == -1:  # 1 is leaf node
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  /* "scipy/spatial/ckdtree.pyx":1453
 *         elif tracker.max_distance < tracker.upper_bound / tracker.epsfac:
 *             self.__query_ball_tree_traverse_no_checking(other, results, node1, node2)
 *         elif node1.split_dim == -1:  # 1 is leaf node             # <<<<<<<<<<<<<<
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 */
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    /* "scipy/spatial/ckdtree.pyx":1454
 *             self.__query_ball_tree_traverse_no_checking(other, results, node1, node2)
 *         elif node1.split_dim == -1:  # 1 is leaf node
 *             lnode1 = <leafnode*>node1             # <<<<<<<<<<<<<<
 * 
 *             if node2.split_dim == -1:  # 1 & 2 are leaves
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    /* "scipy/spatial/ckdtree.pyx":1456
 *             lnode1 = <leafnode*>node1
 * 
 *             if node2.split_dim == -1:  # 1 & 2 are leaves             # <<<<<<<<<<<<<<
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 * 
 */
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      /* "scipy/spatial/ckdtree.pyx":1457
 * 
 *             if node2.split_dim == -1:  # 1 & 2 are leaves
 *                 lnode2 = <leafnode*>node2             # <<<<<<<<<<<<<<
 * 
 *                 # brute-force
 */
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      /* "scipy/spatial/ckdtree.pyx":1460
 * 
 *                 # brute-force
 *                 for i in range(lnode1.start_idx, lnode1.end_idx):             # <<<<<<<<<<<<<<
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 *                     for j in range(lnode2.start_idx, lnode2.end_idx):
 */
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      for (__pyx_t_4 = __pyx_v_lnode1->start_idx; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
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        /* "scipy/spatial/ckdtree.pyx":1461
 *                 # brute-force
 *                 for i in range(lnode1.start_idx, lnode1.end_idx):
 *                     results_i = results[self.raw_indices[i]]             # <<<<<<<<<<<<<<
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 */
        if (unlikely(((PyObject *)__pyx_v_results) == Py_None)) {
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          {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1461; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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        __pyx_t_5 = __Pyx_GetItemInt_List(((PyObject *)__pyx_v_results), (__pyx_v_self->raw_indices[__pyx_v_i]), sizeof(__pyx_t_5numpy_intp_t), __Pyx_PyInt_to_py_Py_intptr_t); if (!__pyx_t_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1461; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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        /* "scipy/spatial/ckdtree.pyx":1462
 *                 for i in range(lnode1.start_idx, lnode1.end_idx):
 *                     results_i = results[self.raw_indices[i]]
 *                     for j in range(lnode2.start_idx, lnode2.end_idx):             # <<<<<<<<<<<<<<
 *                         d = _distance_p(
 *                             self.raw_data + self.raw_indices[i] * self.m,
 */
        __pyx_t_6 = __pyx_v_lnode2->end_idx;
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          /* "scipy/spatial/ckdtree.pyx":1466
 *                             self.raw_data + self.raw_indices[i] * self.m,
 *                             other.raw_data + other.raw_indices[j] * other.m,
 *                             tracker.p, self.m, tracker.upper_bound)             # <<<<<<<<<<<<<<
 *                         if d <= tracker.upper_bound:
 *                             list_append(results_i, other.raw_indices[j])
 */
          __pyx_v_d = __pyx_f_5scipy_7spatial_7ckdtree__distance_p((__pyx_v_self->raw_data + ((__pyx_v_self->raw_indices[__pyx_v_i]) * __pyx_v_self->m)), (__pyx_v_other->raw_data + ((__pyx_v_other->raw_indices[__pyx_v_j]) * __pyx_v_other->m)), __pyx_v_tracker->p, __pyx_v_self->m, __pyx_v_tracker->upper_bound);

          /* "scipy/spatial/ckdtree.pyx":1467
 *                             other.raw_data + other.raw_indices[j] * other.m,
 *                             tracker.p, self.m, tracker.upper_bound)
 *                         if d <= tracker.upper_bound:             # <<<<<<<<<<<<<<
 *                             list_append(results_i, other.raw_indices[j])
 * 
 */
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            /* "scipy/spatial/ckdtree.pyx":1468
 *                             tracker.p, self.m, tracker.upper_bound)
 *                         if d <= tracker.upper_bound:
 *                             list_append(results_i, other.raw_indices[j])             # <<<<<<<<<<<<<<
 * 
 *             else:  # 1 is a leaf node, 2 is inner node
 */
            __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_list_append(__pyx_v_results_i, (__pyx_v_other->raw_indices[__pyx_v_j])); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1468; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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      goto __pyx_L4;
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    /*else*/ {

      /* "scipy/spatial/ckdtree.pyx":1472
 *             else:  # 1 is a leaf node, 2 is inner node
 * 
 *                 tracker.push_less_of(2, node2)             # <<<<<<<<<<<<<<
 *                 self.__query_ball_tree_traverse_checking(
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 */
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      /* "scipy/spatial/ckdtree.pyx":1474
 *                 tracker.push_less_of(2, node2)
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1, node2.less, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
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      /* "scipy/spatial/ckdtree.pyx":1475
 *                 self.__query_ball_tree_traverse_checking(
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 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *                 tracker.push_greater_of(2, node2)
 */
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      /* "scipy/spatial/ckdtree.pyx":1477
 *                 tracker.pop()
 * 
 *                 tracker.push_greater_of(2, node2)             # <<<<<<<<<<<<<<
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1, node2.greater, tracker)
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_greater_of(__pyx_v_tracker, 2, __pyx_v_node2); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1477; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1479
 *                 tracker.push_greater_of(2, node2)
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1, node2.greater, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
      __pyx_t_2 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___query_ball_tree_traverse_checking(__pyx_v_self, __pyx_v_other, __pyx_v_results, __pyx_v_node1, __pyx_v_node2->greater, __pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1478; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1480
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1, node2.greater, tracker)
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 * 
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1480; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
    }
    __pyx_L4:;
    goto __pyx_L3;
  }
  /*else*/ {

    /* "scipy/spatial/ckdtree.pyx":1484
 * 
 *         else:  # 1 is an inner node
 *             if node2.split_dim == -1:  # 1 is an inner node, 2 is a leaf node             # <<<<<<<<<<<<<<
 *                 tracker.push_less_of(1, node1)
 *                 self.__query_ball_tree_traverse_checking(
 */
    __pyx_t_1 = (__pyx_v_node2->split_dim == -1);
    if (__pyx_t_1) {

      /* "scipy/spatial/ckdtree.pyx":1485
 *         else:  # 1 is an inner node
 *             if node2.split_dim == -1:  # 1 is an inner node, 2 is a leaf node
 *                 tracker.push_less_of(1, node1)             # <<<<<<<<<<<<<<
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.less, node2, tracker)
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_less_of(__pyx_v_tracker, 1, __pyx_v_node1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1485; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1487
 *                 tracker.push_less_of(1, node1)
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.less, node2, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
      __pyx_t_2 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___query_ball_tree_traverse_checking(__pyx_v_self, __pyx_v_other, __pyx_v_results, __pyx_v_node1->less, __pyx_v_node2, __pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1486; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1488
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.less, node2, tracker)
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *                 tracker.push_greater_of(1, node1)
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1488; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1490
 *                 tracker.pop()
 * 
 *                 tracker.push_greater_of(1, node1)             # <<<<<<<<<<<<<<
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.greater, node2, tracker)
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_greater_of(__pyx_v_tracker, 1, __pyx_v_node1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1490; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1492
 *                 tracker.push_greater_of(1, node1)
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.greater, node2, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
      __pyx_t_2 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___query_ball_tree_traverse_checking(__pyx_v_self, __pyx_v_other, __pyx_v_results, __pyx_v_node1->greater, __pyx_v_node2, __pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1491; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1493
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.greater, node2, tracker)
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *             else: # 1 & 2 are inner nodes
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1493; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
      goto __pyx_L10;
    }
    /*else*/ {

      /* "scipy/spatial/ckdtree.pyx":1497
 *             else: # 1 & 2 are inner nodes
 * 
 *                 tracker.push_less_of(1, node1)             # <<<<<<<<<<<<<<
 *                 tracker.push_less_of(2, node2)
 *                 self.__query_ball_tree_traverse_checking(
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_less_of(__pyx_v_tracker, 1, __pyx_v_node1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1497; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1498
 * 
 *                 tracker.push_less_of(1, node1)
 *                 tracker.push_less_of(2, node2)             # <<<<<<<<<<<<<<
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.less, node2.less, tracker)
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_less_of(__pyx_v_tracker, 2, __pyx_v_node2); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1498; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1500
 *                 tracker.push_less_of(2, node2)
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.less, node2.less, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
      __pyx_t_2 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___query_ball_tree_traverse_checking(__pyx_v_self, __pyx_v_other, __pyx_v_results, __pyx_v_node1->less, __pyx_v_node2->less, __pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1499; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1501
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.less, node2.less, tracker)
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *                 tracker.push_greater_of(2, node2)
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1501; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1503
 *                 tracker.pop()
 * 
 *                 tracker.push_greater_of(2, node2)             # <<<<<<<<<<<<<<
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.less, node2.greater, tracker)
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_greater_of(__pyx_v_tracker, 2, __pyx_v_node2); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1503; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1505
 *                 tracker.push_greater_of(2, node2)
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.less, node2.greater, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 *                 tracker.pop()
 */
      __pyx_t_2 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___query_ball_tree_traverse_checking(__pyx_v_self, __pyx_v_other, __pyx_v_results, __pyx_v_node1->less, __pyx_v_node2->greater, __pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1504; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1506
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.less, node2.greater, tracker)
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1506; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1507
 *                     other, results, node1.less, node2.greater, tracker)
 *                 tracker.pop()
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 * 
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1507; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1510
 * 
 * 
 *                 tracker.push_greater_of(1, node1)             # <<<<<<<<<<<<<<
 *                 tracker.push_less_of(2, node2)
 *                 self.__query_ball_tree_traverse_checking(
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_greater_of(__pyx_v_tracker, 1, __pyx_v_node1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1510; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1511
 * 
 *                 tracker.push_greater_of(1, node1)
 *                 tracker.push_less_of(2, node2)             # <<<<<<<<<<<<<<
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.greater, node2.less, tracker)
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_less_of(__pyx_v_tracker, 2, __pyx_v_node2); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1511; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1513
 *                 tracker.push_less_of(2, node2)
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.greater, node2.less, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
      __pyx_t_2 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___query_ball_tree_traverse_checking(__pyx_v_self, __pyx_v_other, __pyx_v_results, __pyx_v_node1->greater, __pyx_v_node2->less, __pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1512; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1514
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.greater, node2.less, tracker)
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *                 tracker.push_greater_of(2, node2)
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1514; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1516
 *                 tracker.pop()
 * 
 *                 tracker.push_greater_of(2, node2)             # <<<<<<<<<<<<<<
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.greater, node2.greater, tracker)
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_greater_of(__pyx_v_tracker, 2, __pyx_v_node2); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1516; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1518
 *                 tracker.push_greater_of(2, node2)
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.greater, node2.greater, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 *                 tracker.pop()
 */
      __pyx_t_2 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___query_ball_tree_traverse_checking(__pyx_v_self, __pyx_v_other, __pyx_v_results, __pyx_v_node1->greater, __pyx_v_node2->greater, __pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1517; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1519
 *                 self.__query_ball_tree_traverse_checking(
 *                     other, results, node1.greater, node2.greater, tracker)
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1519; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1520
 *                     other, results, node1.greater, node2.greater, tracker)
 *                 tracker.pop()
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *         return 0
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1520; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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    __pyx_L10:;
  }
  __pyx_L3:;

  /* "scipy/spatial/ckdtree.pyx":1522
 *                 tracker.pop()
 * 
 *         return 0             # <<<<<<<<<<<<<<
 * 
 * 
 */
  __pyx_r = 0;
  goto __pyx_L0;

  __pyx_r = 0;
  goto __pyx_L0;
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_5);
  __Pyx_AddTraceback("scipy.spatial.ckdtree.cKDTree.__query_ball_tree_traverse_checking", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = -1;
  __pyx_L0:;
  __Pyx_XDECREF(__pyx_v_results_i);
  __Pyx_RefNannyFinishContext();
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/* Python wrapper */
static PyObject *__pyx_pw_5scipy_7spatial_7ckdtree_7cKDTree_9query_ball_tree(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
static char __pyx_doc_5scipy_7spatial_7ckdtree_7cKDTree_8query_ball_tree[] = "query_ball_tree(self, other, r, p, eps)\n\n        Find all pairs of points whose distance is at most r\n\n        Parameters\n        ----------\n        other : KDTree instance\n            The tree containing points to search against.\n        r : float\n            The maximum distance, has to be positive.\n        p : float, optional\n            Which Minkowski norm to use.  `p` has to meet the condition\n            ``1 <= p <= infinity``.\n        eps : float, optional\n            Approximate search.  Branches of the tree are not explored\n            if their nearest points are further than ``r/(1+eps)``, and\n            branches are added in bulk if their furthest points are nearer\n            than ``r * (1+eps)``.  `eps` has to be non-negative.\n\n        Returns\n        -------\n        results : list of lists\n            For each element ``self.data[i]`` of this tree, ``results[i]`` is a\n            list of the indices of its neighbors in ``other.data``.\n\n        ";
static PyObject *__pyx_pw_5scipy_7spatial_7ckdtree_7cKDTree_9query_ball_tree(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
  struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_other = 0;
  __pyx_t_5numpy_float64_t __pyx_v_r;
  __pyx_t_5numpy_float64_t __pyx_v_p;
  __pyx_t_5numpy_float64_t __pyx_v_eps;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
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    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__other,&__pyx_n_s__r,&__pyx_n_s__p,&__pyx_n_s__eps,0};
    PyObject* values[4] = {0,0,0,0};
    if (unlikely(__pyx_kwds)) {
      Py_ssize_t kw_args;
      const Py_ssize_t pos_args = PyTuple_GET_SIZE(__pyx_args);
      switch (pos_args) {
        case  4: values[3] = PyTuple_GET_ITEM(__pyx_args, 3);
        case  3: values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
        case  2: values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
        case  1: values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
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        else goto __pyx_L5_argtuple_error;
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      /* "scipy/spatial/ckdtree.pyx":1526
 * 
 *     def query_ball_tree(cKDTree self, cKDTree other,
 *                         np.float64_t r, np.float64_t p=2., np.float64_t eps=0):             # <<<<<<<<<<<<<<
 *         """query_ball_tree(self, other, r, p, eps)
 * 
 */
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    } else {
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 *                 self.__query_pairs_traverse_no_checking(results, node1.greater, node2.greater)
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      __pyx_t_6 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___query_pairs_traverse_no_checking(__pyx_v_self, __pyx_v_results, __pyx_v_node1->less, __pyx_v_node2->less); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1609; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1610
 *                 # original KDTree.query_pairs)
 *                 self.__query_pairs_traverse_no_checking(results, node1.less, node2.less)
 *                 self.__query_pairs_traverse_no_checking(results, node1.less, node2.greater)             # <<<<<<<<<<<<<<
 *                 self.__query_pairs_traverse_no_checking(results, node1.greater, node2.greater)
 *             else:
 */
      __pyx_t_6 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___query_pairs_traverse_no_checking(__pyx_v_self, __pyx_v_results, __pyx_v_node1->less, __pyx_v_node2->greater); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1610; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1611
 *                 self.__query_pairs_traverse_no_checking(results, node1.less, node2.less)
 *                 self.__query_pairs_traverse_no_checking(results, node1.less, node2.greater)
 *                 self.__query_pairs_traverse_no_checking(results, node1.greater, node2.greater)             # <<<<<<<<<<<<<<
 *             else:
 *                 self.__query_pairs_traverse_no_checking(results, node1.less, node2)
 */
      __pyx_t_6 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___query_pairs_traverse_no_checking(__pyx_v_self, __pyx_v_results, __pyx_v_node1->greater, __pyx_v_node2->greater); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1611; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
      goto __pyx_L10;
    }
    /*else*/ {

      /* "scipy/spatial/ckdtree.pyx":1613
 *                 self.__query_pairs_traverse_no_checking(results, node1.greater, node2.greater)
 *             else:
 *                 self.__query_pairs_traverse_no_checking(results, node1.less, node2)             # <<<<<<<<<<<<<<
 *                 self.__query_pairs_traverse_no_checking(results, node1.greater, node2)
 * 
 */
      __pyx_t_6 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___query_pairs_traverse_no_checking(__pyx_v_self, __pyx_v_results, __pyx_v_node1->less, __pyx_v_node2); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1613; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1614
 *             else:
 *                 self.__query_pairs_traverse_no_checking(results, node1.less, node2)
 *                 self.__query_pairs_traverse_no_checking(results, node1.greater, node2)             # <<<<<<<<<<<<<<
 * 
 *         return 0
 */
      __pyx_t_6 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___query_pairs_traverse_no_checking(__pyx_v_self, __pyx_v_results, __pyx_v_node1->greater, __pyx_v_node2); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1614; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
    }
    __pyx_L10:;
  }
  __pyx_L3:;

  /* "scipy/spatial/ckdtree.pyx":1616
 *                 self.__query_pairs_traverse_no_checking(results, node1.greater, node2)
 * 
 *         return 0             # <<<<<<<<<<<<<<
 * 
 *     @cython.cdivision(True)
 */
  __pyx_r = 0;
  goto __pyx_L0;

  __pyx_r = 0;
  goto __pyx_L0;
  __pyx_L1_error:;
  __Pyx_AddTraceback("scipy.spatial.ckdtree.cKDTree.__query_pairs_traverse_no_checking", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = -1;
  __pyx_L0:;
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  return __pyx_r;
}

/* "scipy/spatial/ckdtree.pyx":1619
 * 
 *     @cython.cdivision(True)
 *     cdef int __query_pairs_traverse_checking(cKDTree self,             # <<<<<<<<<<<<<<
 *                                              set results,
 *                                              innernode* node1,
 */

static int __pyx_f_5scipy_7spatial_7ckdtree_7cKDTree___query_pairs_traverse_checking(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *__pyx_v_self, PyObject *__pyx_v_results, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *__pyx_v_node1, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *__pyx_v_node2, struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *__pyx_v_tracker) {
  struct __pyx_t_5scipy_7spatial_7ckdtree_leafnode *__pyx_v_lnode1;
  struct __pyx_t_5scipy_7spatial_7ckdtree_leafnode *__pyx_v_lnode2;
  __pyx_t_5numpy_float64_t __pyx_v_d;
  __pyx_t_5numpy_intp_t __pyx_v_i;
  __pyx_t_5numpy_intp_t __pyx_v_j;
  __pyx_t_5numpy_intp_t __pyx_v_min_j;
  int __pyx_r;
  __Pyx_RefNannyDeclarations
  int __pyx_t_1;
  int __pyx_t_2;
  __pyx_t_5numpy_intp_t __pyx_t_3;
  __pyx_t_5numpy_intp_t __pyx_t_4;
  __pyx_t_5numpy_intp_t __pyx_t_5;
  __pyx_t_5numpy_intp_t __pyx_t_6;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__query_pairs_traverse_checking", 0);

  /* "scipy/spatial/ckdtree.pyx":1629
 *         cdef np.intp_t i, j, min_j
 * 
 *         if tracker.min_distance > tracker.upper_bound * tracker.epsfac:             # <<<<<<<<<<<<<<
 *             return 0
 *         elif tracker.max_distance < tracker.upper_bound / tracker.epsfac:
 */
  __pyx_t_1 = (__pyx_v_tracker->min_distance > (__pyx_v_tracker->upper_bound * __pyx_v_tracker->epsfac));
  if (__pyx_t_1) {

    /* "scipy/spatial/ckdtree.pyx":1630
 * 
 *         if tracker.min_distance > tracker.upper_bound * tracker.epsfac:
 *             return 0             # <<<<<<<<<<<<<<
 *         elif tracker.max_distance < tracker.upper_bound / tracker.epsfac:
 *             self.__query_pairs_traverse_no_checking(results, node1, node2)
 */
    __pyx_r = 0;
    goto __pyx_L0;
    goto __pyx_L3;
  }

  /* "scipy/spatial/ckdtree.pyx":1631
 *         if tracker.min_distance > tracker.upper_bound * tracker.epsfac:
 *             return 0
 *         elif tracker.max_distance < tracker.upper_bound / tracker.epsfac:             # <<<<<<<<<<<<<<
 *             self.__query_pairs_traverse_no_checking(results, node1, node2)
 *         elif node1.split_dim == -1:  # 1 is leaf node
 */
  __pyx_t_1 = (__pyx_v_tracker->max_distance < (__pyx_v_tracker->upper_bound / __pyx_v_tracker->epsfac));
  if (__pyx_t_1) {

    /* "scipy/spatial/ckdtree.pyx":1632
 *             return 0
 *         elif tracker.max_distance < tracker.upper_bound / tracker.epsfac:
 *             self.__query_pairs_traverse_no_checking(results, node1, node2)             # <<<<<<<<<<<<<<
 *         elif node1.split_dim == -1:  # 1 is leaf node
 *             lnode1 = <leafnode*>node1
 */
    __pyx_t_2 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___query_pairs_traverse_no_checking(__pyx_v_self, __pyx_v_results, __pyx_v_node1, __pyx_v_node2); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1632; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
    goto __pyx_L3;
  }

  /* "scipy/spatial/ckdtree.pyx":1633
 *         elif tracker.max_distance < tracker.upper_bound / tracker.epsfac:
 *             self.__query_pairs_traverse_no_checking(results, node1, node2)
 *         elif node1.split_dim == -1:  # 1 is leaf node             # <<<<<<<<<<<<<<
 *             lnode1 = <leafnode*>node1
 * 
 */
  __pyx_t_1 = (__pyx_v_node1->split_dim == -1);
  if (__pyx_t_1) {

    /* "scipy/spatial/ckdtree.pyx":1634
 *             self.__query_pairs_traverse_no_checking(results, node1, node2)
 *         elif node1.split_dim == -1:  # 1 is leaf node
 *             lnode1 = <leafnode*>node1             # <<<<<<<<<<<<<<
 * 
 *             if node2.split_dim == -1:  # 1 & 2 are leaves
 */
    __pyx_v_lnode1 = ((struct __pyx_t_5scipy_7spatial_7ckdtree_leafnode *)__pyx_v_node1);

    /* "scipy/spatial/ckdtree.pyx":1636
 *             lnode1 = <leafnode*>node1
 * 
 *             if node2.split_dim == -1:  # 1 & 2 are leaves             # <<<<<<<<<<<<<<
 *                 lnode2 = <leafnode*>node2
 * 
 */
    __pyx_t_1 = (__pyx_v_node2->split_dim == -1);
    if (__pyx_t_1) {

      /* "scipy/spatial/ckdtree.pyx":1637
 * 
 *             if node2.split_dim == -1:  # 1 & 2 are leaves
 *                 lnode2 = <leafnode*>node2             # <<<<<<<<<<<<<<
 * 
 *                 # brute-force
 */
      __pyx_v_lnode2 = ((struct __pyx_t_5scipy_7spatial_7ckdtree_leafnode *)__pyx_v_node2);

      /* "scipy/spatial/ckdtree.pyx":1640
 * 
 *                 # brute-force
 *                 for i in range(lnode1.start_idx, lnode1.end_idx):             # <<<<<<<<<<<<<<
 * 
 *                     # Special care here to avoid duplicate pairs
 */
      __pyx_t_3 = __pyx_v_lnode1->end_idx;
      for (__pyx_t_4 = __pyx_v_lnode1->start_idx; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
        __pyx_v_i = __pyx_t_4;

        /* "scipy/spatial/ckdtree.pyx":1643
 * 
 *                     # Special care here to avoid duplicate pairs
 *                     if node1 == node2:             # <<<<<<<<<<<<<<
 *                         min_j = i + 1
 *                     else:
 */
        __pyx_t_1 = (__pyx_v_node1 == __pyx_v_node2);
        if (__pyx_t_1) {

          /* "scipy/spatial/ckdtree.pyx":1644
 *                     # Special care here to avoid duplicate pairs
 *                     if node1 == node2:
 *                         min_j = i + 1             # <<<<<<<<<<<<<<
 *                     else:
 *                         min_j = lnode2.start_idx
 */
          __pyx_v_min_j = (__pyx_v_i + 1);
          goto __pyx_L7;
        }
        /*else*/ {

          /* "scipy/spatial/ckdtree.pyx":1646
 *                         min_j = i + 1
 *                     else:
 *                         min_j = lnode2.start_idx             # <<<<<<<<<<<<<<
 * 
 *                     for j in range(min_j, lnode2.end_idx):
 */
          __pyx_v_min_j = __pyx_v_lnode2->start_idx;
        }
        __pyx_L7:;

        /* "scipy/spatial/ckdtree.pyx":1648
 *                         min_j = lnode2.start_idx
 * 
 *                     for j in range(min_j, lnode2.end_idx):             # <<<<<<<<<<<<<<
 *                         d = _distance_p(
 *                             self.raw_data + self.raw_indices[i] * self.m,
 */
        __pyx_t_5 = __pyx_v_lnode2->end_idx;
        for (__pyx_t_6 = __pyx_v_min_j; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
          __pyx_v_j = __pyx_t_6;

          /* "scipy/spatial/ckdtree.pyx":1652
 *                             self.raw_data + self.raw_indices[i] * self.m,
 *                             self.raw_data + self.raw_indices[j] * self.m,
 *                             tracker.p, self.m, tracker.upper_bound)             # <<<<<<<<<<<<<<
 *                         if d <= tracker.upper_bound:
 *                             set_add_ordered_pair(results,
 */
          __pyx_v_d = __pyx_f_5scipy_7spatial_7ckdtree__distance_p((__pyx_v_self->raw_data + ((__pyx_v_self->raw_indices[__pyx_v_i]) * __pyx_v_self->m)), (__pyx_v_self->raw_data + ((__pyx_v_self->raw_indices[__pyx_v_j]) * __pyx_v_self->m)), __pyx_v_tracker->p, __pyx_v_self->m, __pyx_v_tracker->upper_bound);

          /* "scipy/spatial/ckdtree.pyx":1653
 *                             self.raw_data + self.raw_indices[j] * self.m,
 *                             tracker.p, self.m, tracker.upper_bound)
 *                         if d <= tracker.upper_bound:             # <<<<<<<<<<<<<<
 *                             set_add_ordered_pair(results,
 *                                                  self.raw_indices[i],
 */
          __pyx_t_1 = (__pyx_v_d <= __pyx_v_tracker->upper_bound);
          if (__pyx_t_1) {

            /* "scipy/spatial/ckdtree.pyx":1656
 *                             set_add_ordered_pair(results,
 *                                                  self.raw_indices[i],
 *                                                  self.raw_indices[j])             # <<<<<<<<<<<<<<
 * 
 *             else:  # 1 is a leaf node, 2 is inner node
 */
            __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_set_add_ordered_pair(__pyx_v_results, (__pyx_v_self->raw_indices[__pyx_v_i]), (__pyx_v_self->raw_indices[__pyx_v_j])); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1654; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
            goto __pyx_L10;
          }
          __pyx_L10:;
        }
      }
      goto __pyx_L4;
    }
    /*else*/ {

      /* "scipy/spatial/ckdtree.pyx":1659
 * 
 *             else:  # 1 is a leaf node, 2 is inner node
 *                 tracker.push_less_of(2, node2)             # <<<<<<<<<<<<<<
 *                 self.__query_pairs_traverse_checking(
 *                     results, node1, node2.less, tracker)
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_less_of(__pyx_v_tracker, 2, __pyx_v_node2); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1659; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1661
 *                 tracker.push_less_of(2, node2)
 *                 self.__query_pairs_traverse_checking(
 *                     results, node1, node2.less, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
      __pyx_t_2 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___query_pairs_traverse_checking(__pyx_v_self, __pyx_v_results, __pyx_v_node1, __pyx_v_node2->less, __pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1660; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1662
 *                 self.__query_pairs_traverse_checking(
 *                     results, node1, node2.less, tracker)
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *                 tracker.push_greater_of(2, node2)
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1662; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1664
 *                 tracker.pop()
 * 
 *                 tracker.push_greater_of(2, node2)             # <<<<<<<<<<<<<<
 *                 self.__query_pairs_traverse_checking(
 *                     results, node1, node2.greater, tracker)
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_greater_of(__pyx_v_tracker, 2, __pyx_v_node2); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1664; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1666
 *                 tracker.push_greater_of(2, node2)
 *                 self.__query_pairs_traverse_checking(
 *                     results, node1, node2.greater, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
      __pyx_t_2 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___query_pairs_traverse_checking(__pyx_v_self, __pyx_v_results, __pyx_v_node1, __pyx_v_node2->greater, __pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1665; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1667
 *                 self.__query_pairs_traverse_checking(
 *                     results, node1, node2.greater, tracker)
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *         else:  # 1 is an inner node
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1667; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
    }
    __pyx_L4:;
    goto __pyx_L3;
  }
  /*else*/ {

    /* "scipy/spatial/ckdtree.pyx":1670
 * 
 *         else:  # 1 is an inner node
 *             if node2.split_dim == -1:  # 1 is an inner node, 2 is a leaf node             # <<<<<<<<<<<<<<
 *                 tracker.push_less_of(1, node1)
 *                 self.__query_pairs_traverse_checking(
 */
    __pyx_t_1 = (__pyx_v_node2->split_dim == -1);
    if (__pyx_t_1) {

      /* "scipy/spatial/ckdtree.pyx":1671
 *         else:  # 1 is an inner node
 *             if node2.split_dim == -1:  # 1 is an inner node, 2 is a leaf node
 *                 tracker.push_less_of(1, node1)             # <<<<<<<<<<<<<<
 *                 self.__query_pairs_traverse_checking(
 *                     results, node1.less, node2, tracker)
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_less_of(__pyx_v_tracker, 1, __pyx_v_node1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1671; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1673
 *                 tracker.push_less_of(1, node1)
 *                 self.__query_pairs_traverse_checking(
 *                     results, node1.less, node2, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
      __pyx_t_2 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___query_pairs_traverse_checking(__pyx_v_self, __pyx_v_results, __pyx_v_node1->less, __pyx_v_node2, __pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1672; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1674
 *                 self.__query_pairs_traverse_checking(
 *                     results, node1.less, node2, tracker)
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *                 tracker.push_greater_of(1, node1)
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1674; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1676
 *                 tracker.pop()
 * 
 *                 tracker.push_greater_of(1, node1)             # <<<<<<<<<<<<<<
 *                 self.__query_pairs_traverse_checking(
 *                     results, node1.greater, node2, tracker)
 */
      __pyx_t_2 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_greater_of(__pyx_v_tracker, 1, __pyx_v_node1); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1676; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1678
 *                 tracker.push_greater_of(1, node1)
 *                 self.__query_pairs_traverse_checking(
 *                     results, node1.greater, node2, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
      __pyx_t_2 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___query_pairs_traverse_checking(__pyx_v_self, __pyx_v_results, __pyx_v_node1->greater, __pyx_v_node2, __pyx_v_tracker); if (unlikely(__pyx_t_2 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1677; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1679
 *                 self.__query_pairs_traverse_checking(
 *                     results, node1.greater, node2, tracker)
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *             else: # 1 and 2 are inner nodes
 */
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 *                 tracker.push_greater_of(2, node2)             # <<<<<<<<<<<<<<
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        for (__pyx_t_13 = __pyx_v_lnode1->start_idx; __pyx_t_13 < __pyx_t_12; __pyx_t_13+=1) {
          __pyx_v_i = __pyx_t_13;

          /* "scipy/spatial/ckdtree.pyx":1795
 *                     # brute-force
 *                     for i in range(lnode1.start_idx, lnode1.end_idx):
 *                         for j in range(lnode2.start_idx, lnode2.end_idx):             # <<<<<<<<<<<<<<
 *                             d = _distance_p(
 *                                 self.raw_data + self.raw_indices[i] * self.m,
 */
          __pyx_t_15 = __pyx_v_lnode2->end_idx;
          for (__pyx_t_16 = __pyx_v_lnode2->start_idx; __pyx_t_16 < __pyx_t_15; __pyx_t_16+=1) {
            __pyx_v_j = __pyx_t_16;

            /* "scipy/spatial/ckdtree.pyx":1799
 *                                 self.raw_data + self.raw_indices[i] * self.m,
 *                                 other.raw_data + other.raw_indices[j] * other.m,
 *                                 tracker.p, self.m, tracker.max_distance)             # <<<<<<<<<<<<<<
 *                             # I think it's usually cheaper to test d against all r's
 *                             # than to generate a distance array, sort it, then
 */
            __pyx_v_d = __pyx_f_5scipy_7spatial_7ckdtree__distance_p((__pyx_v_self->raw_data + ((__pyx_v_self->raw_indices[__pyx_v_i]) * __pyx_v_self->m)), (__pyx_v_other->raw_data + ((__pyx_v_other->raw_indices[__pyx_v_j]) * __pyx_v_other->m)), __pyx_v_tracker->p, __pyx_v_self->m, __pyx_v_tracker->max_distance);

            /* "scipy/spatial/ckdtree.pyx":1803
 *                             # than to generate a distance array, sort it, then
 *                             # search for all r's via binary search
 *                             for l in range(n_queries):             # <<<<<<<<<<<<<<
 *                                 if d <= r[idx[l]]:
 *                                     results[idx[l]] += 1
 */
            __pyx_t_17 = __pyx_v_n_queries;
            for (__pyx_t_18 = 0; __pyx_t_18 < __pyx_t_17; __pyx_t_18+=1) {
              __pyx_v_l = __pyx_t_18;

              /* "scipy/spatial/ckdtree.pyx":1804
 *                             # search for all r's via binary search
 *                             for l in range(n_queries):
 *                                 if d <= r[idx[l]]:             # <<<<<<<<<<<<<<
 *                                     results[idx[l]] += 1
 * 
 */
              __pyx_t_14 = (__pyx_v_d <= (__pyx_v_r[(__pyx_v_idx[__pyx_v_l])]));
              if (__pyx_t_14) {

                /* "scipy/spatial/ckdtree.pyx":1805
 *                             for l in range(n_queries):
 *                                 if d <= r[idx[l]]:
 *                                     results[idx[l]] += 1             # <<<<<<<<<<<<<<
 * 
 *                 else:  # 1 is a leaf node, 2 is inner node
 */
                __pyx_t_19 = (__pyx_v_idx[__pyx_v_l]);
                (__pyx_v_results[__pyx_t_19]) = ((__pyx_v_results[__pyx_t_19]) + 1);
                goto __pyx_L15;
              }
              __pyx_L15:;
            }
          }
        }
        goto __pyx_L8;
      }
      /*else*/ {

        /* "scipy/spatial/ckdtree.pyx":1808
 * 
 *                 else:  # 1 is a leaf node, 2 is inner node
 *                     tracker.push_less_of(2, node2)             # <<<<<<<<<<<<<<
 *                     self.__count_neighbors_traverse(
 *                         other, n_queries, r, results, idx,
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_less_of(__pyx_v_tracker, 2, __pyx_v_node2); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1808; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1811
 *                     self.__count_neighbors_traverse(
 *                         other, n_queries, r, results, idx,
 *                         node1, node2.less, tracker)             # <<<<<<<<<<<<<<
 *                     tracker.pop()
 * 
 */
        __pyx_t_7 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___count_neighbors_traverse(__pyx_v_self, __pyx_v_other, __pyx_v_n_queries, __pyx_v_r, __pyx_v_results, __pyx_v_idx, __pyx_v_node1, __pyx_v_node2->less, __pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1809; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1812
 *                         other, n_queries, r, results, idx,
 *                         node1, node2.less, tracker)
 *                     tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *                     tracker.push_greater_of(2, node2)
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1812; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1814
 *                     tracker.pop()
 * 
 *                     tracker.push_greater_of(2, node2)             # <<<<<<<<<<<<<<
 *                     self.__count_neighbors_traverse(
 *                         other, n_queries, r, results, idx,
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_greater_of(__pyx_v_tracker, 2, __pyx_v_node2); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1814; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1817
 *                     self.__count_neighbors_traverse(
 *                         other, n_queries, r, results, idx,
 *                         node1, node2.greater, tracker)             # <<<<<<<<<<<<<<
 *                     tracker.pop()
 * 
 */
        __pyx_t_7 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___count_neighbors_traverse(__pyx_v_self, __pyx_v_other, __pyx_v_n_queries, __pyx_v_r, __pyx_v_results, __pyx_v_idx, __pyx_v_node1, __pyx_v_node2->greater, __pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1815; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1818
 *                         other, n_queries, r, results, idx,
 *                         node1, node2.greater, tracker)
 *                     tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *             else:  # 1 is an inner node
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1818; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
      }
      __pyx_L8:;
      goto __pyx_L7;
    }
    /*else*/ {

      /* "scipy/spatial/ckdtree.pyx":1821
 * 
 *             else:  # 1 is an inner node
 *                 if node2.split_dim == -1:  # 1 is an inner node, 2 is a leaf node             # <<<<<<<<<<<<<<
 *                     tracker.push_less_of(1, node1)
 *                     self.__count_neighbors_traverse(
 */
      __pyx_t_14 = (__pyx_v_node2->split_dim == -1);
      if (__pyx_t_14) {

        /* "scipy/spatial/ckdtree.pyx":1822
 *             else:  # 1 is an inner node
 *                 if node2.split_dim == -1:  # 1 is an inner node, 2 is a leaf node
 *                     tracker.push_less_of(1, node1)             # <<<<<<<<<<<<<<
 *                     self.__count_neighbors_traverse(
 *                         other, n_queries, r, results, idx,
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_less_of(__pyx_v_tracker, 1, __pyx_v_node1); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1822; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1825
 *                     self.__count_neighbors_traverse(
 *                         other, n_queries, r, results, idx,
 *                         node1.less, node2, tracker)             # <<<<<<<<<<<<<<
 *                     tracker.pop()
 * 
 */
        __pyx_t_7 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___count_neighbors_traverse(__pyx_v_self, __pyx_v_other, __pyx_v_n_queries, __pyx_v_r, __pyx_v_results, __pyx_v_idx, __pyx_v_node1->less, __pyx_v_node2, __pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1823; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1826
 *                         other, n_queries, r, results, idx,
 *                         node1.less, node2, tracker)
 *                     tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *                     tracker.push_greater_of(1, node1)
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1826; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1828
 *                     tracker.pop()
 * 
 *                     tracker.push_greater_of(1, node1)             # <<<<<<<<<<<<<<
 *                     self.__count_neighbors_traverse(
 *                         other, n_queries, r, results, idx,
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_greater_of(__pyx_v_tracker, 1, __pyx_v_node1); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1828; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1831
 *                     self.__count_neighbors_traverse(
 *                         other, n_queries, r, results, idx,
 *                         node1.greater, node2, tracker)             # <<<<<<<<<<<<<<
 *                     tracker.pop()
 * 
 */
        __pyx_t_7 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___count_neighbors_traverse(__pyx_v_self, __pyx_v_other, __pyx_v_n_queries, __pyx_v_r, __pyx_v_results, __pyx_v_idx, __pyx_v_node1->greater, __pyx_v_node2, __pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1829; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1832
 *                         other, n_queries, r, results, idx,
 *                         node1.greater, node2, tracker)
 *                     tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *                 else: # 1 and 2 are inner nodes
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
        goto __pyx_L16;
      }
      /*else*/ {

        /* "scipy/spatial/ckdtree.pyx":1835
 * 
 *                 else: # 1 and 2 are inner nodes
 *                     tracker.push_less_of(1, node1)             # <<<<<<<<<<<<<<
 *                     tracker.push_less_of(2, node2)
 *                     self.__count_neighbors_traverse(
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_less_of(__pyx_v_tracker, 1, __pyx_v_node1); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1835; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1836
 *                 else: # 1 and 2 are inner nodes
 *                     tracker.push_less_of(1, node1)
 *                     tracker.push_less_of(2, node2)             # <<<<<<<<<<<<<<
 *                     self.__count_neighbors_traverse(
 *                         other, n_queries, r, results, idx,
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_less_of(__pyx_v_tracker, 2, __pyx_v_node2); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1836; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1839
 *                     self.__count_neighbors_traverse(
 *                         other, n_queries, r, results, idx,
 *                         node1.less, node2.less, tracker)             # <<<<<<<<<<<<<<
 *                     tracker.pop()
 * 
 */
        __pyx_t_7 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___count_neighbors_traverse(__pyx_v_self, __pyx_v_other, __pyx_v_n_queries, __pyx_v_r, __pyx_v_results, __pyx_v_idx, __pyx_v_node1->less, __pyx_v_node2->less, __pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1837; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1840
 *                         other, n_queries, r, results, idx,
 *                         node1.less, node2.less, tracker)
 *                     tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *                     tracker.push_greater_of(2, node2)
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1840; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1842
 *                     tracker.pop()
 * 
 *                     tracker.push_greater_of(2, node2)             # <<<<<<<<<<<<<<
 *                     self.__count_neighbors_traverse(
 *                         other, n_queries, r, results, idx,
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_greater_of(__pyx_v_tracker, 2, __pyx_v_node2); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1842; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1845
 *                     self.__count_neighbors_traverse(
 *                         other, n_queries, r, results, idx,
 *                         node1.less, node2.greater, tracker)             # <<<<<<<<<<<<<<
 *                     tracker.pop()
 *                     tracker.pop()
 */
        __pyx_t_7 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___count_neighbors_traverse(__pyx_v_self, __pyx_v_other, __pyx_v_n_queries, __pyx_v_r, __pyx_v_results, __pyx_v_idx, __pyx_v_node1->less, __pyx_v_node2->greater, __pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1843; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1846
 *                         other, n_queries, r, results, idx,
 *                         node1.less, node2.greater, tracker)
 *                     tracker.pop()             # <<<<<<<<<<<<<<
 *                     tracker.pop()
 * 
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1846; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1847
 *                         node1.less, node2.greater, tracker)
 *                     tracker.pop()
 *                     tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *                     tracker.push_greater_of(1, node1)
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1847; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1849
 *                     tracker.pop()
 * 
 *                     tracker.push_greater_of(1, node1)             # <<<<<<<<<<<<<<
 *                     tracker.push_less_of(2, node2)
 *                     self.__count_neighbors_traverse(
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_greater_of(__pyx_v_tracker, 1, __pyx_v_node1); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1849; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1850
 * 
 *                     tracker.push_greater_of(1, node1)
 *                     tracker.push_less_of(2, node2)             # <<<<<<<<<<<<<<
 *                     self.__count_neighbors_traverse(
 *                         other, n_queries, r, results, idx,
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_less_of(__pyx_v_tracker, 2, __pyx_v_node2); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1850; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1853
 *                     self.__count_neighbors_traverse(
 *                         other, n_queries, r, results, idx,
 *                         node1.greater, node2.less, tracker)             # <<<<<<<<<<<<<<
 *                     tracker.pop()
 * 
 */
        __pyx_t_7 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___count_neighbors_traverse(__pyx_v_self, __pyx_v_other, __pyx_v_n_queries, __pyx_v_r, __pyx_v_results, __pyx_v_idx, __pyx_v_node1->greater, __pyx_v_node2->less, __pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1851; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1854
 *                         other, n_queries, r, results, idx,
 *                         node1.greater, node2.less, tracker)
 *                     tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *                     tracker.push_greater_of(2, node2)
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1854; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1856
 *                     tracker.pop()
 * 
 *                     tracker.push_greater_of(2, node2)             # <<<<<<<<<<<<<<
 *                     self.__count_neighbors_traverse(
 *                         other, n_queries, r, results, idx,
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_greater_of(__pyx_v_tracker, 2, __pyx_v_node2); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1856; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1859
 *                     self.__count_neighbors_traverse(
 *                         other, n_queries, r, results, idx,
 *                         node1.greater, node2.greater, tracker)             # <<<<<<<<<<<<<<
 *                     tracker.pop()
 *                     tracker.pop()
 */
        __pyx_t_7 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___count_neighbors_traverse(__pyx_v_self, __pyx_v_other, __pyx_v_n_queries, __pyx_v_r, __pyx_v_results, __pyx_v_idx, __pyx_v_node1->greater, __pyx_v_node2->greater, __pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1857; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1860
 *                         other, n_queries, r, results, idx,
 *                         node1.greater, node2.greater, tracker)
 *                     tracker.pop()             # <<<<<<<<<<<<<<
 *                     tracker.pop()
 * 
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1860; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

        /* "scipy/spatial/ckdtree.pyx":1861
 *                         node1.greater, node2.greater, tracker)
 *                     tracker.pop()
 *                     tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *         return 0
 */
        __pyx_t_7 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1861; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
      }
      __pyx_L16:;
    }
    __pyx_L7:;
    goto __pyx_L6;
  }
  __pyx_L6:;

  /* "scipy/spatial/ckdtree.pyx":1863
 *                     tracker.pop()
 * 
 *         return 0             # <<<<<<<<<<<<<<
 * 
 *     @cython.boundscheck(False)
 */
  __pyx_r = 0;
  goto __pyx_L0;

  __pyx_r = 0;
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  if (__pyx_t_1) {

    /* "scipy/spatial/ckdtree.pyx":1957
 *             return 0
 *         elif node1.split_dim == -1:  # 1 is leaf node
 *             lnode1 = <leafnode*>node1             # <<<<<<<<<<<<<<
 * 
 *             if node2.split_dim == -1:  # 1 & 2 are leaves
 */
    __pyx_v_lnode1 = ((struct __pyx_t_5scipy_7spatial_7ckdtree_leafnode *)__pyx_v_node1);

    /* "scipy/spatial/ckdtree.pyx":1959
 *             lnode1 = <leafnode*>node1
 * 
 *             if node2.split_dim == -1:  # 1 & 2 are leaves             # <<<<<<<<<<<<<<
 *                 lnode2 = <leafnode*>node2
 * 
 */
    __pyx_t_1 = (__pyx_v_node2->split_dim == -1);
    if (__pyx_t_1) {

      /* "scipy/spatial/ckdtree.pyx":1960
 * 
 *             if node2.split_dim == -1:  # 1 & 2 are leaves
 *                 lnode2 = <leafnode*>node2             # <<<<<<<<<<<<<<
 * 
 *                 # brute-force
 */
      __pyx_v_lnode2 = ((struct __pyx_t_5scipy_7spatial_7ckdtree_leafnode *)__pyx_v_node2);

      /* "scipy/spatial/ckdtree.pyx":1963
 * 
 *                 # brute-force
 *                 for i in range(lnode1.start_idx, lnode1.end_idx):             # <<<<<<<<<<<<<<
 *                     # Special care here to avoid duplicate pairs
 *                     if node1 == node2:
 */
      __pyx_t_2 = __pyx_v_lnode1->end_idx;
      for (__pyx_t_3 = __pyx_v_lnode1->start_idx; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
        __pyx_v_i = __pyx_t_3;

        /* "scipy/spatial/ckdtree.pyx":1965
 *                 for i in range(lnode1.start_idx, lnode1.end_idx):
 *                     # Special care here to avoid duplicate pairs
 *                     if node1 == node2:             # <<<<<<<<<<<<<<
 *                         min_j = i+1
 *                     else:
 */
        __pyx_t_1 = (__pyx_v_node1 == __pyx_v_node2);
        if (__pyx_t_1) {

          /* "scipy/spatial/ckdtree.pyx":1966
 *                     # Special care here to avoid duplicate pairs
 *                     if node1 == node2:
 *                         min_j = i+1             # <<<<<<<<<<<<<<
 *                     else:
 *                         min_j = lnode2.start_idx
 */
          __pyx_v_min_j = (__pyx_v_i + 1);
          goto __pyx_L7;
        }
        /*else*/ {

          /* "scipy/spatial/ckdtree.pyx":1968
 *                         min_j = i+1
 *                     else:
 *                         min_j = lnode2.start_idx             # <<<<<<<<<<<<<<
 * 
 *                     for j in range(min_j, lnode2.end_idx):
 */
          __pyx_v_min_j = __pyx_v_lnode2->start_idx;
        }
        __pyx_L7:;

        /* "scipy/spatial/ckdtree.pyx":1970
 *                         min_j = lnode2.start_idx
 * 
 *                     for j in range(min_j, lnode2.end_idx):             # <<<<<<<<<<<<<<
 *                         d = _distance_p(
 *                             self.raw_data + self.raw_indices[i] * self.m,
 */
        __pyx_t_4 = __pyx_v_lnode2->end_idx;
        for (__pyx_t_5 = __pyx_v_min_j; __pyx_t_5 < __pyx_t_4; __pyx_t_5+=1) {
          __pyx_v_j = __pyx_t_5;

          /* "scipy/spatial/ckdtree.pyx":1974
 *                             self.raw_data + self.raw_indices[i] * self.m,
 *                             other.raw_data + other.raw_indices[j] * self.m,
 *                             tracker.p, self.m, tracker.upper_bound)             # <<<<<<<<<<<<<<
 *                         if d <= tracker.upper_bound:
 *                             if tracker.p != 1 and tracker.p != infinity:
 */
          __pyx_v_d = __pyx_f_5scipy_7spatial_7ckdtree__distance_p((__pyx_v_self->raw_data + ((__pyx_v_self->raw_indices[__pyx_v_i]) * __pyx_v_self->m)), (__pyx_v_other->raw_data + ((__pyx_v_other->raw_indices[__pyx_v_j]) * __pyx_v_self->m)), __pyx_v_tracker->p, __pyx_v_self->m, __pyx_v_tracker->upper_bound);

          /* "scipy/spatial/ckdtree.pyx":1975
 *                             other.raw_data + other.raw_indices[j] * self.m,
 *                             tracker.p, self.m, tracker.upper_bound)
 *                         if d <= tracker.upper_bound:             # <<<<<<<<<<<<<<
 *                             if tracker.p != 1 and tracker.p != infinity:
 *                                 d = d**(1. / tracker.p)
 */
          __pyx_t_1 = (__pyx_v_d <= __pyx_v_tracker->upper_bound);
          if (__pyx_t_1) {

            /* "scipy/spatial/ckdtree.pyx":1976
 *                             tracker.p, self.m, tracker.upper_bound)
 *                         if d <= tracker.upper_bound:
 *                             if tracker.p != 1 and tracker.p != infinity:             # <<<<<<<<<<<<<<
 *                                 d = d**(1. / tracker.p)
 *                             results.add(self.raw_indices[i],
 */
            __pyx_t_1 = (__pyx_v_tracker->p != 1.0);
            if (__pyx_t_1) {
              __pyx_t_6 = (__pyx_v_tracker->p != __pyx_v_5scipy_7spatial_7ckdtree_infinity);
              __pyx_t_7 = __pyx_t_6;
            } else {
              __pyx_t_7 = __pyx_t_1;
            }
            if (__pyx_t_7) {

              /* "scipy/spatial/ckdtree.pyx":1977
 *                         if d <= tracker.upper_bound:
 *                             if tracker.p != 1 and tracker.p != infinity:
 *                                 d = d**(1. / tracker.p)             # <<<<<<<<<<<<<<
 *                             results.add(self.raw_indices[i],
 *                                         other.raw_indices[j], d)
 */
              if (unlikely(__pyx_v_tracker->p == 0)) {
                PyErr_Format(PyExc_ZeroDivisionError, "float division");
                {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1977; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
              }
              __pyx_v_d = pow(__pyx_v_d, (1. / __pyx_v_tracker->p));
              goto __pyx_L11;
            }
            __pyx_L11:;

            /* "scipy/spatial/ckdtree.pyx":1979
 *                                 d = d**(1. / tracker.p)
 *                             results.add(self.raw_indices[i],
 *                                         other.raw_indices[j], d)             # <<<<<<<<<<<<<<
 *                             if node1 == node2:
 *                                 results.add(self.raw_indices[j],
 */
            ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_coo_entries *)__pyx_v_results->__pyx_vtab)->add(__pyx_v_results, (__pyx_v_self->raw_indices[__pyx_v_i]), (__pyx_v_other->raw_indices[__pyx_v_j]), __pyx_v_d);

            /* "scipy/spatial/ckdtree.pyx":1980
 *                             results.add(self.raw_indices[i],
 *                                         other.raw_indices[j], d)
 *                             if node1 == node2:             # <<<<<<<<<<<<<<
 *                                 results.add(self.raw_indices[j],
 *                                             other.raw_indices[i], d)
 */
            __pyx_t_7 = (__pyx_v_node1 == __pyx_v_node2);
            if (__pyx_t_7) {

              /* "scipy/spatial/ckdtree.pyx":1982
 *                             if node1 == node2:
 *                                 results.add(self.raw_indices[j],
 *                                             other.raw_indices[i], d)             # <<<<<<<<<<<<<<
 * 
 *             else:  # 1 is a leaf node, 2 is inner node
 */
              ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_coo_entries *)__pyx_v_results->__pyx_vtab)->add(__pyx_v_results, (__pyx_v_self->raw_indices[__pyx_v_j]), (__pyx_v_other->raw_indices[__pyx_v_i]), __pyx_v_d);
              goto __pyx_L12;
            }
            __pyx_L12:;
            goto __pyx_L10;
          }
          __pyx_L10:;
        }
      }
      goto __pyx_L4;
    }
    /*else*/ {

      /* "scipy/spatial/ckdtree.pyx":1985
 * 
 *             else:  # 1 is a leaf node, 2 is inner node
 *                 tracker.push_less_of(2, node2)             # <<<<<<<<<<<<<<
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1, node2.less, tracker)
 */
      __pyx_t_8 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_less_of(__pyx_v_tracker, 2, __pyx_v_node2); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1985; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1987
 *                 tracker.push_less_of(2, node2)
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1, node2.less, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
      __pyx_t_8 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___sparse_distance_matrix_traverse(__pyx_v_self, __pyx_v_other, __pyx_v_results, __pyx_v_node1, __pyx_v_node2->less, __pyx_v_tracker); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1986; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1988
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1, node2.less, tracker)
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *                 tracker.push_greater_of(2, node2)
 */
      __pyx_t_8 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1988; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1990
 *                 tracker.pop()
 * 
 *                 tracker.push_greater_of(2, node2)             # <<<<<<<<<<<<<<
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1, node2.greater, tracker)
 */
      __pyx_t_8 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_greater_of(__pyx_v_tracker, 2, __pyx_v_node2); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1990; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1992
 *                 tracker.push_greater_of(2, node2)
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1, node2.greater, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
      __pyx_t_8 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___sparse_distance_matrix_traverse(__pyx_v_self, __pyx_v_other, __pyx_v_results, __pyx_v_node1, __pyx_v_node2->greater, __pyx_v_tracker); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1993
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1, node2.greater, tracker)
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *         else:  # 1 is an inner node
 */
      __pyx_t_8 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1993; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
    }
    __pyx_L4:;
    goto __pyx_L3;
  }
  /*else*/ {

    /* "scipy/spatial/ckdtree.pyx":1996
 * 
 *         else:  # 1 is an inner node
 *             if node2.split_dim == -1:  # 1 is an inner node, 2 is a leaf node             # <<<<<<<<<<<<<<
 *                 tracker.push_less_of(1, node1)
 *                 self.__sparse_distance_matrix_traverse(
 */
    __pyx_t_7 = (__pyx_v_node2->split_dim == -1);
    if (__pyx_t_7) {

      /* "scipy/spatial/ckdtree.pyx":1997
 *         else:  # 1 is an inner node
 *             if node2.split_dim == -1:  # 1 is an inner node, 2 is a leaf node
 *                 tracker.push_less_of(1, node1)             # <<<<<<<<<<<<<<
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1.less, node2, tracker)
 */
      __pyx_t_8 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_less_of(__pyx_v_tracker, 1, __pyx_v_node1); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1997; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":1999
 *                 tracker.push_less_of(1, node1)
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1.less, node2, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
      __pyx_t_8 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___sparse_distance_matrix_traverse(__pyx_v_self, __pyx_v_other, __pyx_v_results, __pyx_v_node1->less, __pyx_v_node2, __pyx_v_tracker); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1998; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":2000
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1.less, node2, tracker)
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *                 tracker.push_greater_of(1, node1)
 */
      __pyx_t_8 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 2000; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":2002
 *                 tracker.pop()
 * 
 *                 tracker.push_greater_of(1, node1)             # <<<<<<<<<<<<<<
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1.greater, node2, tracker)
 */
      __pyx_t_8 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_greater_of(__pyx_v_tracker, 1, __pyx_v_node1); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 2002; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":2004
 *                 tracker.push_greater_of(1, node1)
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1.greater, node2, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
      __pyx_t_8 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___sparse_distance_matrix_traverse(__pyx_v_self, __pyx_v_other, __pyx_v_results, __pyx_v_node1->greater, __pyx_v_node2, __pyx_v_tracker); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 2003; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":2005
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1.greater, node2, tracker)
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *             else: # 1 and 2 are inner nodes
 */
      __pyx_t_8 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 2005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
      goto __pyx_L13;
    }
    /*else*/ {

      /* "scipy/spatial/ckdtree.pyx":2008
 * 
 *             else: # 1 and 2 are inner nodes
 *                 tracker.push_less_of(1, node1)             # <<<<<<<<<<<<<<
 *                 tracker.push_less_of(2, node2)
 *                 self.__sparse_distance_matrix_traverse(
 */
      __pyx_t_8 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_less_of(__pyx_v_tracker, 1, __pyx_v_node1); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 2008; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":2009
 *             else: # 1 and 2 are inner nodes
 *                 tracker.push_less_of(1, node1)
 *                 tracker.push_less_of(2, node2)             # <<<<<<<<<<<<<<
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1.less, node2.less, tracker)
 */
      __pyx_t_8 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_less_of(__pyx_v_tracker, 2, __pyx_v_node2); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 2009; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":2011
 *                 tracker.push_less_of(2, node2)
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1.less, node2.less, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
      __pyx_t_8 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___sparse_distance_matrix_traverse(__pyx_v_self, __pyx_v_other, __pyx_v_results, __pyx_v_node1->less, __pyx_v_node2->less, __pyx_v_tracker); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 2010; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":2012
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1.less, node2.less, tracker)
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *                 tracker.push_greater_of(2, node2)
 */
      __pyx_t_8 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 2012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":2014
 *                 tracker.pop()
 * 
 *                 tracker.push_greater_of(2, node2)             # <<<<<<<<<<<<<<
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1.less, node2.greater, tracker)
 */
      __pyx_t_8 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_greater_of(__pyx_v_tracker, 2, __pyx_v_node2); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 2014; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":2016
 *                 tracker.push_greater_of(2, node2)
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1.less, node2.greater, tracker)             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 *                 tracker.pop()
 */
      __pyx_t_8 = ((struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree *)__pyx_v_self->__pyx_vtab)->__pyx___sparse_distance_matrix_traverse(__pyx_v_self, __pyx_v_other, __pyx_v_results, __pyx_v_node1->less, __pyx_v_node2->greater, __pyx_v_tracker); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 2015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":2017
 *                 self.__sparse_distance_matrix_traverse(
 *                     other, results, node1.less, node2.greater, tracker)
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 *                 tracker.pop()
 * 
 */
      __pyx_t_8 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 2017; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":2018
 *                     other, results, node1.less, node2.greater, tracker)
 *                 tracker.pop()
 *                 tracker.pop()             # <<<<<<<<<<<<<<
 * 
 *                 tracker.push_greater_of(1, node1)
 */
      __pyx_t_8 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop(__pyx_v_tracker); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 2018; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":2020
 *                 tracker.pop()
 * 
 *                 tracker.push_greater_of(1, node1)             # <<<<<<<<<<<<<<
 *                 if node1 != node2:
 *                     # Avoid traversing (node1.less, node2.greater) and
 */
      __pyx_t_8 = __pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_greater_of(__pyx_v_tracker, 1, __pyx_v_node1); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 2020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

      /* "scipy/spatial/ckdtree.pyx":2021
 * 
 *                 tracker.push_greater_of(1, node1)
 *                 if node1 != node2:             # <<<<<<<<<<<<<<
 *                     # Avoid traversing (node1.less, node2.greater) and
 *                     # (node1.greater, node2.less) (it's the same node pair
 */
      __pyx_t_7 = (__pyx_v_node1 != __pyx_v_node2);
      if (__pyx_t_7) {

        /* "scipy/spatial/ckdtree.pyx":2026
 *                     # twice over, which is the source of the complication in
 *                     # the original KDTree.sparse_distance_matrix)
 *                     tracker.push_less_of(2, node2)             # <<<<<<<<<<<<<<
 *                     self.__sparse_distance_matrix_traverse(
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    /* "numpy.pxd":260
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    /* "numpy.pxd":263
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    /* "numpy.pxd":264
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    /* "numpy.pxd":265
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    /* "numpy.pxd":266
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    /* "numpy.pxd":267
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  0, /*nb_inplace_subtract*/
  0, /*nb_inplace_multiply*/
  #if PY_MAJOR_VERSION < 3
  0, /*nb_inplace_divide*/
  #endif
  0, /*nb_inplace_remainder*/
  0, /*nb_inplace_power*/
  0, /*nb_inplace_lshift*/
  0, /*nb_inplace_rshift*/
  0, /*nb_inplace_and*/
  0, /*nb_inplace_xor*/
  0, /*nb_inplace_or*/
  0, /*nb_floor_divide*/
  0, /*nb_true_divide*/
  0, /*nb_inplace_floor_divide*/
  0, /*nb_inplace_true_divide*/
  #if PY_VERSION_HEX >= 0x02050000
  0, /*nb_index*/
  #endif
};

static PySequenceMethods __pyx_tp_as_sequence_Rectangle = {
  0, /*sq_length*/
  0, /*sq_concat*/
  0, /*sq_repeat*/
  0, /*sq_item*/
  0, /*sq_slice*/
  0, /*sq_ass_item*/
  0, /*sq_ass_slice*/
  0, /*sq_contains*/
  0, /*sq_inplace_concat*/
  0, /*sq_inplace_repeat*/
};

static PyMappingMethods __pyx_tp_as_mapping_Rectangle = {
  0, /*mp_length*/
  0, /*mp_subscript*/
  0, /*mp_ass_subscript*/
};

static PyBufferProcs __pyx_tp_as_buffer_Rectangle = {
  #if PY_MAJOR_VERSION < 3
  0, /*bf_getreadbuffer*/
  #endif
  #if PY_MAJOR_VERSION < 3
  0, /*bf_getwritebuffer*/
  #endif
  #if PY_MAJOR_VERSION < 3
  0, /*bf_getsegcount*/
  #endif
  #if PY_MAJOR_VERSION < 3
  0, /*bf_getcharbuffer*/
  #endif
  #if PY_VERSION_HEX >= 0x02060000
  0, /*bf_getbuffer*/
  #endif
  #if PY_VERSION_HEX >= 0x02060000
  0, /*bf_releasebuffer*/
  #endif
};

static PyTypeObject __pyx_type_5scipy_7spatial_7ckdtree_Rectangle = {
  PyVarObject_HEAD_INIT(0, 0)
  __Pyx_NAMESTR("scipy.spatial.ckdtree.Rectangle"), /*tp_name*/
  sizeof(struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_5scipy_7spatial_7ckdtree_Rectangle, /*tp_dealloc*/
  0, /*tp_print*/
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #else
  0, /*reserved*/
  #endif
  0, /*tp_repr*/
  &__pyx_tp_as_number_Rectangle, /*tp_as_number*/
  &__pyx_tp_as_sequence_Rectangle, /*tp_as_sequence*/
  &__pyx_tp_as_mapping_Rectangle, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  &__pyx_tp_as_buffer_Rectangle, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
  0, /*tp_doc*/
  __pyx_tp_traverse_5scipy_7spatial_7ckdtree_Rectangle, /*tp_traverse*/
  __pyx_tp_clear_5scipy_7spatial_7ckdtree_Rectangle, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_5scipy_7spatial_7ckdtree_Rectangle, /*tp_methods*/
  0, /*tp_members*/
  0, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  0, /*tp_dictoffset*/
  __pyx_pw_5scipy_7spatial_7ckdtree_9Rectangle_1__init__, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_5scipy_7spatial_7ckdtree_Rectangle, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  #if PY_VERSION_HEX >= 0x02060000
  0, /*tp_version_tag*/
  #endif
};
static struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_RectRectDistanceTracker __pyx_vtable_5scipy_7spatial_7ckdtree_RectRectDistanceTracker;

static PyObject *__pyx_tp_new_5scipy_7spatial_7ckdtree_RectRectDistanceTracker(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
  struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *p;
  PyObject *o = (*t->tp_alloc)(t, 0);
  if (!o) return 0;
  p = ((struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *)o);
  p->__pyx_vtab = __pyx_vtabptr_5scipy_7spatial_7ckdtree_RectRectDistanceTracker;
  p->rect1 = ((struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *)Py_None); Py_INCREF(Py_None);
  p->rect2 = ((struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *)Py_None); Py_INCREF(Py_None);
  return o;
}

static void __pyx_tp_dealloc_5scipy_7spatial_7ckdtree_RectRectDistanceTracker(PyObject *o) {
  struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *p = (struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *)o;
  {
    PyObject *etype, *eval, *etb;
    PyErr_Fetch(&etype, &eval, &etb);
    ++Py_REFCNT(o);
    __pyx_pw_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_3__dealloc__(o);
    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
    --Py_REFCNT(o);
    PyErr_Restore(etype, eval, etb);
  }
  Py_CLEAR(p->rect1);
  Py_CLEAR(p->rect2);
  (*Py_TYPE(o)->tp_free)(o);
}

static int __pyx_tp_traverse_5scipy_7spatial_7ckdtree_RectRectDistanceTracker(PyObject *o, visitproc v, void *a) {
  int e;
  struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *p = (struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *)o;
  if (p->rect1) {
    e = (*v)(((PyObject*)p->rect1), a); if (e) return e;
  }
  if (p->rect2) {
    e = (*v)(((PyObject*)p->rect2), a); if (e) return e;
  }
  return 0;
}

static int __pyx_tp_clear_5scipy_7spatial_7ckdtree_RectRectDistanceTracker(PyObject *o) {
  struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *p = (struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *)o;
  PyObject* tmp;
  tmp = ((PyObject*)p->rect1);
  p->rect1 = ((struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *)Py_None); Py_INCREF(Py_None);
  Py_XDECREF(tmp);
  tmp = ((PyObject*)p->rect2);
  p->rect2 = ((struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *)Py_None); Py_INCREF(Py_None);
  Py_XDECREF(tmp);
  return 0;
}

static PyMethodDef __pyx_methods_5scipy_7spatial_7ckdtree_RectRectDistanceTracker[] = {
  {0, 0, 0, 0}
};

static PyNumberMethods __pyx_tp_as_number_RectRectDistanceTracker = {
  0, /*nb_add*/
  0, /*nb_subtract*/
  0, /*nb_multiply*/
  #if PY_MAJOR_VERSION < 3
  0, /*nb_divide*/
  #endif
  0, /*nb_remainder*/
  0, /*nb_divmod*/
  0, /*nb_power*/
  0, /*nb_negative*/
  0, /*nb_positive*/
  0, /*nb_absolute*/
  0, /*nb_nonzero*/
  0, /*nb_invert*/
  0, /*nb_lshift*/
  0, /*nb_rshift*/
  0, /*nb_and*/
  0, /*nb_xor*/
  0, /*nb_or*/
  #if PY_MAJOR_VERSION < 3
  0, /*nb_coerce*/
  #endif
  0, /*nb_int*/
  #if PY_MAJOR_VERSION < 3
  0, /*nb_long*/
  #else
  0, /*reserved*/
  #endif
  0, /*nb_float*/
  #if PY_MAJOR_VERSION < 3
  0, /*nb_oct*/
  #endif
  #if PY_MAJOR_VERSION < 3
  0, /*nb_hex*/
  #endif
  0, /*nb_inplace_add*/
  0, /*nb_inplace_subtract*/
  0, /*nb_inplace_multiply*/
  #if PY_MAJOR_VERSION < 3
  0, /*nb_inplace_divide*/
  #endif
  0, /*nb_inplace_remainder*/
  0, /*nb_inplace_power*/
  0, /*nb_inplace_lshift*/
  0, /*nb_inplace_rshift*/
  0, /*nb_inplace_and*/
  0, /*nb_inplace_xor*/
  0, /*nb_inplace_or*/
  0, /*nb_floor_divide*/
  0, /*nb_true_divide*/
  0, /*nb_inplace_floor_divide*/
  0, /*nb_inplace_true_divide*/
  #if PY_VERSION_HEX >= 0x02050000
  0, /*nb_index*/
  #endif
};

static PySequenceMethods __pyx_tp_as_sequence_RectRectDistanceTracker = {
  0, /*sq_length*/
  0, /*sq_concat*/
  0, /*sq_repeat*/
  0, /*sq_item*/
  0, /*sq_slice*/
  0, /*sq_ass_item*/
  0, /*sq_ass_slice*/
  0, /*sq_contains*/
  0, /*sq_inplace_concat*/
  0, /*sq_inplace_repeat*/
};

static PyMappingMethods __pyx_tp_as_mapping_RectRectDistanceTracker = {
  0, /*mp_length*/
  0, /*mp_subscript*/
  0, /*mp_ass_subscript*/
};

static PyBufferProcs __pyx_tp_as_buffer_RectRectDistanceTracker = {
  #if PY_MAJOR_VERSION < 3
  0, /*bf_getreadbuffer*/
  #endif
  #if PY_MAJOR_VERSION < 3
  0, /*bf_getwritebuffer*/
  #endif
  #if PY_MAJOR_VERSION < 3
  0, /*bf_getsegcount*/
  #endif
  #if PY_MAJOR_VERSION < 3
  0, /*bf_getcharbuffer*/
  #endif
  #if PY_VERSION_HEX >= 0x02060000
  0, /*bf_getbuffer*/
  #endif
  #if PY_VERSION_HEX >= 0x02060000
  0, /*bf_releasebuffer*/
  #endif
};

static PyTypeObject __pyx_type_5scipy_7spatial_7ckdtree_RectRectDistanceTracker = {
  PyVarObject_HEAD_INIT(0, 0)
  __Pyx_NAMESTR("scipy.spatial.ckdtree.RectRectDistanceTracker"), /*tp_name*/
  sizeof(struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_5scipy_7spatial_7ckdtree_RectRectDistanceTracker, /*tp_dealloc*/
  0, /*tp_print*/
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #else
  0, /*reserved*/
  #endif
  0, /*tp_repr*/
  &__pyx_tp_as_number_RectRectDistanceTracker, /*tp_as_number*/
  &__pyx_tp_as_sequence_RectRectDistanceTracker, /*tp_as_sequence*/
  &__pyx_tp_as_mapping_RectRectDistanceTracker, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  &__pyx_tp_as_buffer_RectRectDistanceTracker, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
  0, /*tp_doc*/
  __pyx_tp_traverse_5scipy_7spatial_7ckdtree_RectRectDistanceTracker, /*tp_traverse*/
  __pyx_tp_clear_5scipy_7spatial_7ckdtree_RectRectDistanceTracker, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_5scipy_7spatial_7ckdtree_RectRectDistanceTracker, /*tp_methods*/
  0, /*tp_members*/
  0, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  0, /*tp_dictoffset*/
  __pyx_pw_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_1__init__, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_5scipy_7spatial_7ckdtree_RectRectDistanceTracker, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  #if PY_VERSION_HEX >= 0x02060000
  0, /*tp_version_tag*/
  #endif
};
static struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_PointRectDistanceTracker __pyx_vtable_5scipy_7spatial_7ckdtree_PointRectDistanceTracker;

static PyObject *__pyx_tp_new_5scipy_7spatial_7ckdtree_PointRectDistanceTracker(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
  struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *p;
  PyObject *o = (*t->tp_alloc)(t, 0);
  if (!o) return 0;
  p = ((struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *)o);
  p->__pyx_vtab = __pyx_vtabptr_5scipy_7spatial_7ckdtree_PointRectDistanceTracker;
  p->rect = ((struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *)Py_None); Py_INCREF(Py_None);
  return o;
}

static void __pyx_tp_dealloc_5scipy_7spatial_7ckdtree_PointRectDistanceTracker(PyObject *o) {
  struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *p = (struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *)o;
  {
    PyObject *etype, *eval, *etb;
    PyErr_Fetch(&etype, &eval, &etb);
    ++Py_REFCNT(o);
    __pyx_pw_5scipy_7spatial_7ckdtree_24PointRectDistanceTracker_1__dealloc__(o);
    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
    --Py_REFCNT(o);
    PyErr_Restore(etype, eval, etb);
  }
  Py_CLEAR(p->rect);
  (*Py_TYPE(o)->tp_free)(o);
}

static int __pyx_tp_traverse_5scipy_7spatial_7ckdtree_PointRectDistanceTracker(PyObject *o, visitproc v, void *a) {
  int e;
  struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *p = (struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *)o;
  if (p->rect) {
    e = (*v)(((PyObject*)p->rect), a); if (e) return e;
  }
  return 0;
}

static int __pyx_tp_clear_5scipy_7spatial_7ckdtree_PointRectDistanceTracker(PyObject *o) {
  struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *p = (struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *)o;
  PyObject* tmp;
  tmp = ((PyObject*)p->rect);
  p->rect = ((struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *)Py_None); Py_INCREF(Py_None);
  Py_XDECREF(tmp);
  return 0;
}

static PyMethodDef __pyx_methods_5scipy_7spatial_7ckdtree_PointRectDistanceTracker[] = {
  {0, 0, 0, 0}
};

static PyNumberMethods __pyx_tp_as_number_PointRectDistanceTracker = {
  0, /*nb_add*/
  0, /*nb_subtract*/
  0, /*nb_multiply*/
  #if PY_MAJOR_VERSION < 3
  0, /*nb_divide*/
  #endif
  0, /*nb_remainder*/
  0, /*nb_divmod*/
  0, /*nb_power*/
  0, /*nb_negative*/
  0, /*nb_positive*/
  0, /*nb_absolute*/
  0, /*nb_nonzero*/
  0, /*nb_invert*/
  0, /*nb_lshift*/
  0, /*nb_rshift*/
  0, /*nb_and*/
  0, /*nb_xor*/
  0, /*nb_or*/
  #if PY_MAJOR_VERSION < 3
  0, /*nb_coerce*/
  #endif
  0, /*nb_int*/
  #if PY_MAJOR_VERSION < 3
  0, /*nb_long*/
  #else
  0, /*reserved*/
  #endif
  0, /*nb_float*/
  #if PY_MAJOR_VERSION < 3
  0, /*nb_oct*/
  #endif
  #if PY_MAJOR_VERSION < 3
  0, /*nb_hex*/
  #endif
  0, /*nb_inplace_add*/
  0, /*nb_inplace_subtract*/
  0, /*nb_inplace_multiply*/
  #if PY_MAJOR_VERSION < 3
  0, /*nb_inplace_divide*/
  #endif
  0, /*nb_inplace_remainder*/
  0, /*nb_inplace_power*/
  0, /*nb_inplace_lshift*/
  0, /*nb_inplace_rshift*/
  0, /*nb_inplace_and*/
  0, /*nb_inplace_xor*/
  0, /*nb_inplace_or*/
  0, /*nb_floor_divide*/
  0, /*nb_true_divide*/
  0, /*nb_inplace_floor_divide*/
  0, /*nb_inplace_true_divide*/
  #if PY_VERSION_HEX >= 0x02050000
  0, /*nb_index*/
  #endif
};

static PySequenceMethods __pyx_tp_as_sequence_PointRectDistanceTracker = {
  0, /*sq_length*/
  0, /*sq_concat*/
  0, /*sq_repeat*/
  0, /*sq_item*/
  0, /*sq_slice*/
  0, /*sq_ass_item*/
  0, /*sq_ass_slice*/
  0, /*sq_contains*/
  0, /*sq_inplace_concat*/
  0, /*sq_inplace_repeat*/
};

static PyMappingMethods __pyx_tp_as_mapping_PointRectDistanceTracker = {
  0, /*mp_length*/
  0, /*mp_subscript*/
  0, /*mp_ass_subscript*/
};

static PyBufferProcs __pyx_tp_as_buffer_PointRectDistanceTracker = {
  #if PY_MAJOR_VERSION < 3
  0, /*bf_getreadbuffer*/
  #endif
  #if PY_MAJOR_VERSION < 3
  0, /*bf_getwritebuffer*/
  #endif
  #if PY_MAJOR_VERSION < 3
  0, /*bf_getsegcount*/
  #endif
  #if PY_MAJOR_VERSION < 3
  0, /*bf_getcharbuffer*/
  #endif
  #if PY_VERSION_HEX >= 0x02060000
  0, /*bf_getbuffer*/
  #endif
  #if PY_VERSION_HEX >= 0x02060000
  0, /*bf_releasebuffer*/
  #endif
};

static PyTypeObject __pyx_type_5scipy_7spatial_7ckdtree_PointRectDistanceTracker = {
  PyVarObject_HEAD_INIT(0, 0)
  __Pyx_NAMESTR("scipy.spatial.ckdtree.PointRectDistanceTracker"), /*tp_name*/
  sizeof(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_5scipy_7spatial_7ckdtree_PointRectDistanceTracker, /*tp_dealloc*/
  0, /*tp_print*/
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #else
  0, /*reserved*/
  #endif
  0, /*tp_repr*/
  &__pyx_tp_as_number_PointRectDistanceTracker, /*tp_as_number*/
  &__pyx_tp_as_sequence_PointRectDistanceTracker, /*tp_as_sequence*/
  &__pyx_tp_as_mapping_PointRectDistanceTracker, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  &__pyx_tp_as_buffer_PointRectDistanceTracker, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
  0, /*tp_doc*/
  __pyx_tp_traverse_5scipy_7spatial_7ckdtree_PointRectDistanceTracker, /*tp_traverse*/
  __pyx_tp_clear_5scipy_7spatial_7ckdtree_PointRectDistanceTracker, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_5scipy_7spatial_7ckdtree_PointRectDistanceTracker, /*tp_methods*/
  0, /*tp_members*/
  0, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  0, /*tp_dictoffset*/
  0, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_5scipy_7spatial_7ckdtree_PointRectDistanceTracker, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  #if PY_VERSION_HEX >= 0x02060000
  0, /*tp_version_tag*/
  #endif
};
static struct __pyx_vtabstruct_5scipy_7spatial_7ckdtree_cKDTree __pyx_vtable_5scipy_7spatial_7ckdtree_cKDTree;

static PyObject *__pyx_tp_new_5scipy_7spatial_7ckdtree_cKDTree(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
  struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *p;
  PyObject *o = (*t->tp_alloc)(t, 0);
  if (!o) return 0;
  p = ((struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *)o);
  p->__pyx_vtab = __pyx_vtabptr_5scipy_7spatial_7ckdtree_cKDTree;
  p->data = ((PyArrayObject *)Py_None); Py_INCREF(Py_None);
  p->maxes = ((PyArrayObject *)Py_None); Py_INCREF(Py_None);
  p->mins = ((PyArrayObject *)Py_None); Py_INCREF(Py_None);
  p->indices = ((PyArrayObject *)Py_None); Py_INCREF(Py_None);
  return o;
}

static void __pyx_tp_dealloc_5scipy_7spatial_7ckdtree_cKDTree(PyObject *o) {
  struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *p = (struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *)o;
  {
    PyObject *etype, *eval, *etb;
    PyErr_Fetch(&etype, &eval, &etb);
    ++Py_REFCNT(o);
    __pyx_pw_5scipy_7spatial_7ckdtree_7cKDTree_3__dealloc__(o);
    if (PyErr_Occurred()) PyErr_WriteUnraisable(o);
    --Py_REFCNT(o);
    PyErr_Restore(etype, eval, etb);
  }
  Py_CLEAR(p->data);
  Py_CLEAR(p->maxes);
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  Py_CLEAR(p->indices);
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}

static int __pyx_tp_clear_5scipy_7spatial_7ckdtree_cKDTree(PyObject *o) {
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static PyObject *__pyx_getprop_5scipy_7spatial_7ckdtree_7cKDTree_data(PyObject *o, CYTHON_UNUSED void *x) {
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}

static PyObject *__pyx_getprop_5scipy_7spatial_7ckdtree_7cKDTree_n(PyObject *o, CYTHON_UNUSED void *x) {
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}

static PyObject *__pyx_getprop_5scipy_7spatial_7ckdtree_7cKDTree_m(PyObject *o, CYTHON_UNUSED void *x) {
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}

static PyObject *__pyx_getprop_5scipy_7spatial_7ckdtree_7cKDTree_leafsize(PyObject *o, CYTHON_UNUSED void *x) {
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}

static PyObject *__pyx_getprop_5scipy_7spatial_7ckdtree_7cKDTree_maxes(PyObject *o, CYTHON_UNUSED void *x) {
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}

static PyObject *__pyx_getprop_5scipy_7spatial_7ckdtree_7cKDTree_mins(PyObject *o, CYTHON_UNUSED void *x) {
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}

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  {__Pyx_NAMESTR("query_ball_point"), (PyCFunction)__pyx_pw_5scipy_7spatial_7ckdtree_7cKDTree_7query_ball_point, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_5scipy_7spatial_7ckdtree_7cKDTree_6query_ball_point)},
  {__Pyx_NAMESTR("query_ball_tree"), (PyCFunction)__pyx_pw_5scipy_7spatial_7ckdtree_7cKDTree_9query_ball_tree, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_5scipy_7spatial_7ckdtree_7cKDTree_8query_ball_tree)},
  {__Pyx_NAMESTR("query_pairs"), (PyCFunction)__pyx_pw_5scipy_7spatial_7ckdtree_7cKDTree_11query_pairs, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_5scipy_7spatial_7ckdtree_7cKDTree_10query_pairs)},
  {__Pyx_NAMESTR("count_neighbors"), (PyCFunction)__pyx_pw_5scipy_7spatial_7ckdtree_7cKDTree_13count_neighbors, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_5scipy_7spatial_7ckdtree_7cKDTree_12count_neighbors)},
  {__Pyx_NAMESTR("sparse_distance_matrix"), (PyCFunction)__pyx_pw_5scipy_7spatial_7ckdtree_7cKDTree_15sparse_distance_matrix, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_5scipy_7spatial_7ckdtree_7cKDTree_14sparse_distance_matrix)},
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  0, /*nb_divmod*/
  0, /*nb_power*/
  0, /*nb_negative*/
  0, /*nb_positive*/
  0, /*nb_absolute*/
  0, /*nb_nonzero*/
  0, /*nb_invert*/
  0, /*nb_lshift*/
  0, /*nb_rshift*/
  0, /*nb_and*/
  0, /*nb_xor*/
  0, /*nb_or*/
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  0, /*nb_coerce*/
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  0, /*nb_long*/
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  0, /*nb_oct*/
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  0, /*nb_true_divide*/
  0, /*nb_inplace_floor_divide*/
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  0, /*nb_index*/
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  0, /*sq_concat*/
  0, /*sq_repeat*/
  0, /*sq_item*/
  0, /*sq_slice*/
  0, /*sq_ass_item*/
  0, /*sq_ass_slice*/
  0, /*sq_contains*/
  0, /*sq_inplace_concat*/
  0, /*sq_inplace_repeat*/
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static PyMappingMethods __pyx_tp_as_mapping_cKDTree = {
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  0, /*mp_subscript*/
  0, /*mp_ass_subscript*/
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static PyBufferProcs __pyx_tp_as_buffer_cKDTree = {
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  0, /*bf_getreadbuffer*/
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  0, /*bf_getwritebuffer*/
  #endif
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  0, /*bf_getsegcount*/
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  0, /*bf_getcharbuffer*/
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  0, /*bf_getbuffer*/
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  0, /*bf_releasebuffer*/
  #endif
};

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  0, /*tp_compare*/
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  #endif
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  &__pyx_tp_as_sequence_cKDTree, /*tp_as_sequence*/
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  0, /*tp_getattro*/
  0, /*tp_setattro*/
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  __Pyx_DOCSTR("\n    cKDTree(data, int leafsize=10)\n\n    kd-tree for quick nearest-neighbor lookup\n\n    This class provides an index into a set of k-dimensional points\n    which can be used to rapidly look up the nearest neighbors of any\n    point. \n\n    The algorithm used is described in Maneewongvatana and Mount 1999. \n    The general idea is that the kd-tree is a binary trie, each of whose\n    nodes represents an axis-aligned hyperrectangle. Each node specifies\n    an axis and splits the set of points based on whether their coordinate\n    along that axis is greater than or less than a particular value. \n\n    During construction, the axis and splitting point are chosen by the \n    \"sliding midpoint\" rule, which ensures that the cells do not all\n    become long and thin. \n\n    The tree can be queried for the r closest neighbors of any given point \n    (optionally returning only those within some maximum distance of the \n    point). It can also be queried, with a substantial gain in efficiency, \n    for the r approximate closest neighbors.\n\n    For large dimensions (20 is already large) do not expect this to run \n    significantly faster than brute force. High-dimensional nearest-neighbor\n    queries are a substantial open problem in computer science.\n\n    Parameters\n    ----------\n    data : array-like, shape (n,m)\n        The n data points of dimension mto be indexed. This array is \n        not copied unless this is necessary to produce a contiguous \n        array of doubles, and so modifying this data will result in \n        bogus results.\n    leafsize : positive integer\n        The number of points at which the algorithm switches over to\n        brute-force.\n\n    "), /*tp_doc*/
  __pyx_tp_traverse_5scipy_7spatial_7ckdtree_cKDTree, /*tp_traverse*/
  __pyx_tp_clear_5scipy_7spatial_7ckdtree_cKDTree, /*tp_clear*/
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  0, /*tp_weaklistoffset*/
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  __pyx_vtable_5scipy_7spatial_7ckdtree_RectRectDistanceTracker._free_stack = (int (*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *))__pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker__free_stack;
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  __pyx_vtable_5scipy_7spatial_7ckdtree_RectRectDistanceTracker.push_less_of = (int (*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *, __pyx_t_5numpy_intp_t, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *))__pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_less_of;
  __pyx_vtable_5scipy_7spatial_7ckdtree_RectRectDistanceTracker.push_greater_of = (int (*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *, __pyx_t_5numpy_intp_t, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *))__pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_push_greater_of;
  __pyx_vtable_5scipy_7spatial_7ckdtree_RectRectDistanceTracker.pop = (int (*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *))__pyx_f_5scipy_7spatial_7ckdtree_23RectRectDistanceTracker_pop;
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  if (__Pyx_SetVtable(__pyx_type_5scipy_7spatial_7ckdtree_RectRectDistanceTracker.tp_dict, __pyx_vtabptr_5scipy_7spatial_7ckdtree_RectRectDistanceTracker) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 420; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
  if (__Pyx_SetAttrString(__pyx_m, "RectRectDistanceTracker", (PyObject *)&__pyx_type_5scipy_7spatial_7ckdtree_RectRectDistanceTracker) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 420; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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  __pyx_vtable_5scipy_7spatial_7ckdtree_PointRectDistanceTracker._resize_stack = (int (*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *, __pyx_t_5numpy_intp_t))__pyx_f_5scipy_7spatial_7ckdtree_24PointRectDistanceTracker__resize_stack;
  __pyx_vtable_5scipy_7spatial_7ckdtree_PointRectDistanceTracker._free_stack = (int (*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *))__pyx_f_5scipy_7spatial_7ckdtree_24PointRectDistanceTracker__free_stack;
  __pyx_vtable_5scipy_7spatial_7ckdtree_PointRectDistanceTracker.init = (PyObject *(*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *, __pyx_t_5numpy_float64_t *, struct __pyx_obj_5scipy_7spatial_7ckdtree_Rectangle *, __pyx_t_5numpy_float64_t, __pyx_t_5numpy_float64_t, __pyx_t_5numpy_float64_t))__pyx_f_5scipy_7spatial_7ckdtree_24PointRectDistanceTracker_init;
  __pyx_vtable_5scipy_7spatial_7ckdtree_PointRectDistanceTracker.push = (int (*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_float64_t))__pyx_f_5scipy_7spatial_7ckdtree_24PointRectDistanceTracker_push;
  __pyx_vtable_5scipy_7spatial_7ckdtree_PointRectDistanceTracker.push_less_of = (int (*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *))__pyx_f_5scipy_7spatial_7ckdtree_24PointRectDistanceTracker_push_less_of;
  __pyx_vtable_5scipy_7spatial_7ckdtree_PointRectDistanceTracker.push_greater_of = (int (*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *))__pyx_f_5scipy_7spatial_7ckdtree_24PointRectDistanceTracker_push_greater_of;
  __pyx_vtable_5scipy_7spatial_7ckdtree_PointRectDistanceTracker.pop = (int (*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_PointRectDistanceTracker *))__pyx_f_5scipy_7spatial_7ckdtree_24PointRectDistanceTracker_pop;
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  if (__Pyx_SetVtable(__pyx_type_5scipy_7spatial_7ckdtree_PointRectDistanceTracker.tp_dict, __pyx_vtabptr_5scipy_7spatial_7ckdtree_PointRectDistanceTracker) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 599; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
  if (__Pyx_SetAttrString(__pyx_m, "PointRectDistanceTracker", (PyObject *)&__pyx_type_5scipy_7spatial_7ckdtree_PointRectDistanceTracker) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 599; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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  __pyx_vtable_5scipy_7spatial_7ckdtree_cKDTree.__pyx___query_ball_point_traverse_no_checking = (int (*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, PyObject *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *))__pyx_f_5scipy_7spatial_7ckdtree_7cKDTree___query_ball_point_traverse_no_checking;
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  __pyx_vtable_5scipy_7spatial_7ckdtree_cKDTree.__pyx___query_ball_tree_traverse_no_checking = (int (*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, PyObject *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *))__pyx_f_5scipy_7spatial_7ckdtree_7cKDTree___query_ball_tree_traverse_no_checking;
  __pyx_vtable_5scipy_7spatial_7ckdtree_cKDTree.__pyx___query_ball_tree_traverse_checking = (int (*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, PyObject *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *))__pyx_f_5scipy_7spatial_7ckdtree_7cKDTree___query_ball_tree_traverse_checking;
  __pyx_vtable_5scipy_7spatial_7ckdtree_cKDTree.__pyx___query_pairs_traverse_no_checking = (int (*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, PyObject *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *))__pyx_f_5scipy_7spatial_7ckdtree_7cKDTree___query_pairs_traverse_no_checking;
  __pyx_vtable_5scipy_7spatial_7ckdtree_cKDTree.__pyx___query_pairs_traverse_checking = (int (*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, PyObject *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *))__pyx_f_5scipy_7spatial_7ckdtree_7cKDTree___query_pairs_traverse_checking;
  __pyx_vtable_5scipy_7spatial_7ckdtree_cKDTree.__pyx___count_neighbors_traverse = (int (*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, __pyx_t_5numpy_intp_t, __pyx_t_5numpy_float64_t *, __pyx_t_5numpy_intp_t *, __pyx_t_5numpy_intp_t *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *))__pyx_f_5scipy_7spatial_7ckdtree_7cKDTree___count_neighbors_traverse;
  __pyx_vtable_5scipy_7spatial_7ckdtree_cKDTree.__pyx___sparse_distance_matrix_traverse = (int (*)(struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, struct __pyx_obj_5scipy_7spatial_7ckdtree_cKDTree *, struct __pyx_obj_5scipy_7spatial_7ckdtree_coo_entries *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_t_5scipy_7spatial_7ckdtree_innernode *, struct __pyx_obj_5scipy_7spatial_7ckdtree_RectRectDistanceTracker *))__pyx_f_5scipy_7spatial_7ckdtree_7cKDTree___sparse_distance_matrix_traverse;
  if (PyType_Ready(&__pyx_type_5scipy_7spatial_7ckdtree_cKDTree) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 754; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
  if (__Pyx_SetVtable(__pyx_type_5scipy_7spatial_7ckdtree_cKDTree.tp_dict, __pyx_vtabptr_5scipy_7spatial_7ckdtree_cKDTree) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 754; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
  if (__Pyx_SetAttrString(__pyx_m, "cKDTree", (PyObject *)&__pyx_type_5scipy_7spatial_7ckdtree_cKDTree) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 754; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
  __pyx_ptype_5scipy_7spatial_7ckdtree_cKDTree = &__pyx_type_5scipy_7spatial_7ckdtree_cKDTree;
  /*--- Type import code ---*/
  __pyx_ptype_7cpython_4type_type = __Pyx_ImportType(__Pyx_BUILTIN_MODULE_NAME, "type", 
  #if CYTHON_COMPILING_IN_PYPY
  sizeof(PyTypeObject),
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  sizeof(PyHeapTypeObject),
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  0); if (unlikely(!__pyx_ptype_7cpython_4type_type)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 9; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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bad:
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{
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                 "%s() takes %s %" CYTHON_FORMAT_SSIZE_T "d positional argument%s (%" CYTHON_FORMAT_SSIZE_T "d given)",
                 func_name, more_or_less, num_expected,
                 (num_expected == 1) ? "" : "s", num_found);
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static CYTHON_INLINE void __Pyx_ErrRestore(PyObject *type, PyObject *value, PyObject *tb) {
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#else
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}

#if PY_MAJOR_VERSION < 3
static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb,
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        Py_INCREF(value);
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    else {
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            PyErr_SetString(PyExc_TypeError,
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#if CYTHON_COMPILING_IN_PYPY
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    Py_XDECREF(value);
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static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) {
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bad:
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            exc_tb = tstate->curexc_traceback;
            tstate->curexc_type = 0;
            tstate->curexc_value = 0;
            tstate->curexc_traceback = 0;
            Py_DECREF(exc_type);
            Py_XDECREF(exc_value);
            Py_XDECREF(exc_tb);
            return 0;
        } else {
            return -1;
        }
    }
    return 0;
#else
    if (unlikely(PyErr_Occurred())) {
        if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) {
            PyErr_Clear();
            return 0;
        } else {
            return -1;
        }
    }
    return 0;
#endif
}

static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected) {
    if (unlikely(retval)) {
        Py_DECREF(retval);
        __Pyx_RaiseTooManyValuesError(expected);
        return -1;
    } else {
        return __Pyx_IterFinish();
    }
    return 0;
}

static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb) {
    PyObject *local_type, *local_value, *local_tb;
#if CYTHON_COMPILING_IN_CPYTHON
    PyObject *tmp_type, *tmp_value, *tmp_tb;
    PyThreadState *tstate = PyThreadState_GET();
    local_type = tstate->curexc_type;
    local_value = tstate->curexc_value;
    local_tb = tstate->curexc_traceback;
    tstate->curexc_type = 0;
    tstate->curexc_value = 0;
    tstate->curexc_traceback = 0;
#else
    PyErr_Fetch(&local_type, &local_value, &local_tb);
#endif
    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
#if CYTHON_COMPILING_IN_CPYTHON
    if (unlikely(tstate->curexc_type))
#else
    if (unlikely(PyErr_Occurred()))
#endif
        goto bad;
    #if PY_MAJOR_VERSION >= 3
    if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
        goto bad;
    #endif
    Py_INCREF(local_type);
    Py_INCREF(local_value);
    Py_INCREF(local_tb);
    *type = local_type;
    *value = local_value;
    *tb = local_tb;
#if CYTHON_COMPILING_IN_CPYTHON
    tmp_type = tstate->exc_type;
    tmp_value = tstate->exc_value;
    tmp_tb = tstate->exc_traceback;
    tstate->exc_type = local_type;
    tstate->exc_value = local_value;
    tstate->exc_traceback = local_tb;
    /* Make sure tstate is in a consistent state when we XDECREF
       these objects (DECREF may run arbitrary code). */
    Py_XDECREF(tmp_type);
    Py_XDECREF(tmp_value);
    Py_XDECREF(tmp_tb);
#else
    PyErr_SetExcInfo(local_type, local_value, local_tb);
#endif
    return 0;
bad:
    *type = 0;
    *value = 0;
    *tb = 0;
    Py_XDECREF(local_type);
    Py_XDECREF(local_value);
    Py_XDECREF(local_tb);
    return -1;
}

static CYTHON_INLINE int __Pyx_IsLittleEndian(void) {
  unsigned int n = 1;
  return *(unsigned char*)(&n) != 0;
}
static void __Pyx_BufFmt_Init(__Pyx_BufFmt_Context* ctx,
                              __Pyx_BufFmt_StackElem* stack,
                              __Pyx_TypeInfo* type) {
  stack[0].field = &ctx->root;
  stack[0].parent_offset = 0;
  ctx->root.type = type;
  ctx->root.name = "buffer dtype";
  ctx->root.offset = 0;
  ctx->head = stack;
  ctx->head->field = &ctx->root;
  ctx->fmt_offset = 0;
  ctx->head->parent_offset = 0;
  ctx->new_packmode = '@';
  ctx->enc_packmode = '@';
  ctx->new_count = 1;
  ctx->enc_count = 0;
  ctx->enc_type = 0;
  ctx->is_complex = 0;
  ctx->is_valid_array = 0;
  ctx->struct_alignment = 0;
  while (type->typegroup == 'S') {
    ++ctx->head;
    ctx->head->field = type->fields;
    ctx->head->parent_offset = 0;
    type = type->fields->type;
  }
}
static int __Pyx_BufFmt_ParseNumber(const char** ts) {
    int count;
    const char* t = *ts;
    if (*t < '0' || *t > '9') {
      return -1;
    } else {
        count = *t++ - '0';
        while (*t >= '0' && *t < '9') {
            count *= 10;
            count += *t++ - '0';
        }
    }
    *ts = t;
    return count;
}
static int __Pyx_BufFmt_ExpectNumber(const char **ts) {
    int number = __Pyx_BufFmt_ParseNumber(ts);
    if (number == -1) /* First char was not a digit */
        PyErr_Format(PyExc_ValueError,\
                     "Does not understand character buffer dtype format string ('%c')", **ts);
    return number;
}
static void __Pyx_BufFmt_RaiseUnexpectedChar(char ch) {
  PyErr_Format(PyExc_ValueError,
               "Unexpected format string character: '%c'", ch);
}
static const char* __Pyx_BufFmt_DescribeTypeChar(char ch, int is_complex) {
  switch (ch) {
    case 'c': return "'char'";
    case 'b': return "'signed char'";
    case 'B': return "'unsigned char'";
    case 'h': return "'short'";
    case 'H': return "'unsigned short'";
    case 'i': return "'int'";
    case 'I': return "'unsigned int'";
    case 'l': return "'long'";
    case 'L': return "'unsigned long'";
    case 'q': return "'long long'";
    case 'Q': return "'unsigned long long'";
    case 'f': return (is_complex ? "'complex float'" : "'float'");
    case 'd': return (is_complex ? "'complex double'" : "'double'");
    case 'g': return (is_complex ? "'complex long double'" : "'long double'");
    case 'T': return "a struct";
    case 'O': return "Python object";
    case 'P': return "a pointer";
    case 's': case 'p': return "a string";
    case 0: return "end";
    default: return "unparseable format string";
  }
}
static size_t __Pyx_BufFmt_TypeCharToStandardSize(char ch, int is_complex) {
  switch (ch) {
    case '?': case 'c': case 'b': case 'B': case 's': case 'p': return 1;
    case 'h': case 'H': return 2;
    case 'i': case 'I': case 'l': case 'L': return 4;
    case 'q': case 'Q': return 8;
    case 'f': return (is_complex ? 8 : 4);
    case 'd': return (is_complex ? 16 : 8);
    case 'g': {
      PyErr_SetString(PyExc_ValueError, "Python does not define a standard format string size for long double ('g')..");
      return 0;
    }
    case 'O': case 'P': return sizeof(void*);
    default:
      __Pyx_BufFmt_RaiseUnexpectedChar(ch);
      return 0;
    }
}
static size_t __Pyx_BufFmt_TypeCharToNativeSize(char ch, int is_complex) {
  switch (ch) {
    case 'c': case 'b': case 'B': case 's': case 'p': return 1;
    case 'h': case 'H': return sizeof(short);
    case 'i': case 'I': return sizeof(int);
    case 'l': case 'L': return sizeof(long);
    #ifdef HAVE_LONG_LONG
    case 'q': case 'Q': return sizeof(PY_LONG_LONG);
    #endif
    case 'f': return sizeof(float) * (is_complex ? 2 : 1);
    case 'd': return sizeof(double) * (is_complex ? 2 : 1);
    case 'g': return sizeof(long double) * (is_complex ? 2 : 1);
    case 'O': case 'P': return sizeof(void*);
    default: {
      __Pyx_BufFmt_RaiseUnexpectedChar(ch);
      return 0;
    }
  }
}
typedef struct { char c; short x; } __Pyx_st_short;
typedef struct { char c; int x; } __Pyx_st_int;
typedef struct { char c; long x; } __Pyx_st_long;
typedef struct { char c; float x; } __Pyx_st_float;
typedef struct { char c; double x; } __Pyx_st_double;
typedef struct { char c; long double x; } __Pyx_st_longdouble;
typedef struct { char c; void *x; } __Pyx_st_void_p;
#ifdef HAVE_LONG_LONG
typedef struct { char c; PY_LONG_LONG x; } __Pyx_st_longlong;
#endif
static size_t __Pyx_BufFmt_TypeCharToAlignment(char ch, CYTHON_UNUSED int is_complex) {
  switch (ch) {
    case '?': case 'c': case 'b': case 'B': case 's': case 'p': return 1;
    case 'h': case 'H': return sizeof(__Pyx_st_short) - sizeof(short);
    case 'i': case 'I': return sizeof(__Pyx_st_int) - sizeof(int);
    case 'l': case 'L': return sizeof(__Pyx_st_long) - sizeof(long);
#ifdef HAVE_LONG_LONG
    case 'q': case 'Q': return sizeof(__Pyx_st_longlong) - sizeof(PY_LONG_LONG);
#endif
    case 'f': return sizeof(__Pyx_st_float) - sizeof(float);
    case 'd': return sizeof(__Pyx_st_double) - sizeof(double);
    case 'g': return sizeof(__Pyx_st_longdouble) - sizeof(long double);
    case 'P': case 'O': return sizeof(__Pyx_st_void_p) - sizeof(void*);
    default:
      __Pyx_BufFmt_RaiseUnexpectedChar(ch);
      return 0;
    }
}
/* These are for computing the padding at the end of the struct to align
   on the first member of the struct. This will probably the same as above,
   but we don't have any guarantees.
 */
typedef struct { short x; char c; } __Pyx_pad_short;
typedef struct { int x; char c; } __Pyx_pad_int;
typedef struct { long x; char c; } __Pyx_pad_long;
typedef struct { float x; char c; } __Pyx_pad_float;
typedef struct { double x; char c; } __Pyx_pad_double;
typedef struct { long double x; char c; } __Pyx_pad_longdouble;
typedef struct { void *x; char c; } __Pyx_pad_void_p;
#ifdef HAVE_LONG_LONG
typedef struct { PY_LONG_LONG x; char c; } __Pyx_pad_longlong;
#endif
static size_t __Pyx_BufFmt_TypeCharToPadding(char ch, CYTHON_UNUSED int is_complex) {
  switch (ch) {
    case '?': case 'c': case 'b': case 'B': case 's': case 'p': return 1;
    case 'h': case 'H': return sizeof(__Pyx_pad_short) - sizeof(short);
    case 'i': case 'I': return sizeof(__Pyx_pad_int) - sizeof(int);
    case 'l': case 'L': return sizeof(__Pyx_pad_long) - sizeof(long);
#ifdef HAVE_LONG_LONG
    case 'q': case 'Q': return sizeof(__Pyx_pad_longlong) - sizeof(PY_LONG_LONG);
#endif
    case 'f': return sizeof(__Pyx_pad_float) - sizeof(float);
    case 'd': return sizeof(__Pyx_pad_double) - sizeof(double);
    case 'g': return sizeof(__Pyx_pad_longdouble) - sizeof(long double);
    case 'P': case 'O': return sizeof(__Pyx_pad_void_p) - sizeof(void*);
    default:
      __Pyx_BufFmt_RaiseUnexpectedChar(ch);
      return 0;
    }
}
static char __Pyx_BufFmt_TypeCharToGroup(char ch, int is_complex) {
  switch (ch) {
    case 'c':
        return 'H';
    case 'b': case 'h': case 'i':
    case 'l': case 'q': case 's': case 'p':
        return 'I';
    case 'B': case 'H': case 'I': case 'L': case 'Q':
        return 'U';
    case 'f': case 'd': case 'g':
        return (is_complex ? 'C' : 'R');
    case 'O':
        return 'O';
    case 'P':
        return 'P';
    default: {
      __Pyx_BufFmt_RaiseUnexpectedChar(ch);
      return 0;
    }
  }
}
static void __Pyx_BufFmt_RaiseExpected(__Pyx_BufFmt_Context* ctx) {
  if (ctx->head == NULL || ctx->head->field == &ctx->root) {
    const char* expected;
    const char* quote;
    if (ctx->head == NULL) {
      expected = "end";
      quote = "";
    } else {
      expected = ctx->head->field->type->name;
      quote = "'";
    }
    PyErr_Format(PyExc_ValueError,
                 "Buffer dtype mismatch, expected %s%s%s but got %s",
                 quote, expected, quote,
                 __Pyx_BufFmt_DescribeTypeChar(ctx->enc_type, ctx->is_complex));
  } else {
    __Pyx_StructField* field = ctx->head->field;
    __Pyx_StructField* parent = (ctx->head - 1)->field;
    PyErr_Format(PyExc_ValueError,
                 "Buffer dtype mismatch, expected '%s' but got %s in '%s.%s'",
                 field->type->name, __Pyx_BufFmt_DescribeTypeChar(ctx->enc_type, ctx->is_complex),
                 parent->type->name, field->name);
  }
}
static int __Pyx_BufFmt_ProcessTypeChunk(__Pyx_BufFmt_Context* ctx) {
  char group;
  size_t size, offset, arraysize = 1;
  if (ctx->enc_type == 0) return 0;
  if (ctx->head->field->type->arraysize[0]) {
    int i, ndim = 0;
    if (ctx->enc_type == 's' || ctx->enc_type == 'p') {
        ctx->is_valid_array = ctx->head->field->type->ndim == 1;
        ndim = 1;
        if (ctx->enc_count != ctx->head->field->type->arraysize[0]) {
            PyErr_Format(PyExc_ValueError,
                         "Expected a dimension of size %zu, got %zu",
                         ctx->head->field->type->arraysize[0], ctx->enc_count);
            return -1;
        }
    }
    if (!ctx->is_valid_array) {
      PyErr_Format(PyExc_ValueError, "Expected %d dimensions, got %d",
                   ctx->head->field->type->ndim, ndim);
      return -1;
    }
    for (i = 0; i < ctx->head->field->type->ndim; i++) {
      arraysize *= ctx->head->field->type->arraysize[i];
    }
    ctx->is_valid_array = 0;
    ctx->enc_count = 1;
  }
  group = __Pyx_BufFmt_TypeCharToGroup(ctx->enc_type, ctx->is_complex);
  do {
    __Pyx_StructField* field = ctx->head->field;
    __Pyx_TypeInfo* type = field->type;
    if (ctx->enc_packmode == '@' || ctx->enc_packmode == '^') {
      size = __Pyx_BufFmt_TypeCharToNativeSize(ctx->enc_type, ctx->is_complex);
    } else {
      size = __Pyx_BufFmt_TypeCharToStandardSize(ctx->enc_type, ctx->is_complex);
    }
    if (ctx->enc_packmode == '@') {
      size_t align_at = __Pyx_BufFmt_TypeCharToAlignment(ctx->enc_type, ctx->is_complex);
      size_t align_mod_offset;
      if (align_at == 0) return -1;
      align_mod_offset = ctx->fmt_offset % align_at;
      if (align_mod_offset > 0) ctx->fmt_offset += align_at - align_mod_offset;
      if (ctx->struct_alignment == 0)
          ctx->struct_alignment = __Pyx_BufFmt_TypeCharToPadding(ctx->enc_type,
                                                                 ctx->is_complex);
    }
    if (type->size != size || type->typegroup != group) {
      if (type->typegroup == 'C' && type->fields != NULL) {
        size_t parent_offset = ctx->head->parent_offset + field->offset;
        ++ctx->head;
        ctx->head->field = type->fields;
        ctx->head->parent_offset = parent_offset;
        continue;
      }
      if ((type->typegroup == 'H' || group == 'H') && type->size == size) {
      } else {
          __Pyx_BufFmt_RaiseExpected(ctx);
          return -1;
      }
    }
    offset = ctx->head->parent_offset + field->offset;
    if (ctx->fmt_offset != offset) {
      PyErr_Format(PyExc_ValueError,
                   "Buffer dtype mismatch; next field is at offset %" CYTHON_FORMAT_SSIZE_T "d but %" CYTHON_FORMAT_SSIZE_T "d expected",
                   (Py_ssize_t)ctx->fmt_offset, (Py_ssize_t)offset);
      return -1;
    }
    ctx->fmt_offset += size;
    if (arraysize)
      ctx->fmt_offset += (arraysize - 1) * size;
    --ctx->enc_count; /* Consume from buffer string */
    while (1) {
      if (field == &ctx->root) {
        ctx->head = NULL;
        if (ctx->enc_count != 0) {
          __Pyx_BufFmt_RaiseExpected(ctx);
          return -1;
        }
        break; /* breaks both loops as ctx->enc_count == 0 */
      }
      ctx->head->field = ++field;
      if (field->type == NULL) {
        --ctx->head;
        field = ctx->head->field;
        continue;
      } else if (field->type->typegroup == 'S') {
        size_t parent_offset = ctx->head->parent_offset + field->offset;
        if (field->type->fields->type == NULL) continue; /* empty struct */
        field = field->type->fields;
        ++ctx->head;
        ctx->head->field = field;
        ctx->head->parent_offset = parent_offset;
        break;
      } else {
        break;
      }
    }
  } while (ctx->enc_count);
  ctx->enc_type = 0;
  ctx->is_complex = 0;
  return 0;
}
static CYTHON_INLINE PyObject *
__pyx_buffmt_parse_array(__Pyx_BufFmt_Context* ctx, const char** tsp)
{
    const char *ts = *tsp;
    int i = 0, number;
    int ndim = ctx->head->field->type->ndim;
;
    ++ts;
    if (ctx->new_count != 1) {
        PyErr_SetString(PyExc_ValueError,
                        "Cannot handle repeated arrays in format string");
        return NULL;
    }
    if (__Pyx_BufFmt_ProcessTypeChunk(ctx) == -1) return NULL;
    while (*ts && *ts != ')') {
        if (isspace(*ts))
            continue;
        number = __Pyx_BufFmt_ExpectNumber(&ts);
        if (number == -1) return NULL;
        if (i < ndim && (size_t) number != ctx->head->field->type->arraysize[i])
            return PyErr_Format(PyExc_ValueError,
                        "Expected a dimension of size %zu, got %d",
                        ctx->head->field->type->arraysize[i], number);
        if (*ts != ',' && *ts != ')')
            return PyErr_Format(PyExc_ValueError,
                                "Expected a comma in format string, got '%c'", *ts);
        if (*ts == ',') ts++;
        i++;
    }
    if (i != ndim)
        return PyErr_Format(PyExc_ValueError, "Expected %d dimension(s), got %d",
                            ctx->head->field->type->ndim, i);
    if (!*ts) {
        PyErr_SetString(PyExc_ValueError,
                        "Unexpected end of format string, expected ')'");
        return NULL;
    }
    ctx->is_valid_array = 1;
    ctx->new_count = 1;
    *tsp = ++ts;
    return Py_None;
}
static const char* __Pyx_BufFmt_CheckString(__Pyx_BufFmt_Context* ctx, const char* ts) {
  int got_Z = 0;
  while (1) {
    switch(*ts) {
      case 0:
        if (ctx->enc_type != 0 && ctx->head == NULL) {
          __Pyx_BufFmt_RaiseExpected(ctx);
          return NULL;
        }
        if (__Pyx_BufFmt_ProcessTypeChunk(ctx) == -1) return NULL;
        if (ctx->head != NULL) {
          __Pyx_BufFmt_RaiseExpected(ctx);
          return NULL;
        }
                return ts;
      case ' ':
      case 10:
      case 13:
        ++ts;
        break;
      case '<':
        if (!__Pyx_IsLittleEndian()) {
          PyErr_SetString(PyExc_ValueError, "Little-endian buffer not supported on big-endian compiler");
          return NULL;
        }
        ctx->new_packmode = '=';
        ++ts;
        break;
      case '>':
      case '!':
        if (__Pyx_IsLittleEndian()) {
          PyErr_SetString(PyExc_ValueError, "Big-endian buffer not supported on little-endian compiler");
          return NULL;
        }
        ctx->new_packmode = '=';
        ++ts;
        break;
      case '=':
      case '@':
      case '^':
        ctx->new_packmode = *ts++;
        break;
      case 'T': /* substruct */
        {
          const char* ts_after_sub;
          size_t i, struct_count = ctx->new_count;
          size_t struct_alignment = ctx->struct_alignment;
          ctx->new_count = 1;
          ++ts;
          if (*ts != '{') {
            PyErr_SetString(PyExc_ValueError, "Buffer acquisition: Expected '{' after 'T'");
            return NULL;
          }
          if (__Pyx_BufFmt_ProcessTypeChunk(ctx) == -1) return NULL;
          ctx->enc_type = 0; /* Erase processed last struct element */
          ctx->enc_count = 0;
          ctx->struct_alignment = 0;
          ++ts;
          ts_after_sub = ts;
          for (i = 0; i != struct_count; ++i) {
            ts_after_sub = __Pyx_BufFmt_CheckString(ctx, ts);
            if (!ts_after_sub) return NULL;
          }
          ts = ts_after_sub;
          if (struct_alignment) ctx->struct_alignment = struct_alignment;
        }
        break;
      case '}': /* end of substruct; either repeat or move on */
        {
          size_t alignment = ctx->struct_alignment;
          ++ts;
          if (__Pyx_BufFmt_ProcessTypeChunk(ctx) == -1) return NULL;
          ctx->enc_type = 0; /* Erase processed last struct element */
          if (alignment && ctx->fmt_offset % alignment) {
            ctx->fmt_offset += alignment - (ctx->fmt_offset % alignment);
          }
        }
        return ts;
      case 'x':
        if (__Pyx_BufFmt_ProcessTypeChunk(ctx) == -1) return NULL;
        ctx->fmt_offset += ctx->new_count;
        ctx->new_count = 1;
        ctx->enc_count = 0;
        ctx->enc_type = 0;
        ctx->enc_packmode = ctx->new_packmode;
        ++ts;
        break;
      case 'Z':
        got_Z = 1;
        ++ts;
        if (*ts != 'f' && *ts != 'd' && *ts != 'g') {
          __Pyx_BufFmt_RaiseUnexpectedChar('Z');
          return NULL;
        }        /* fall through */
      case 'c': case 'b': case 'B': case 'h': case 'H': case 'i': case 'I':
      case 'l': case 'L': case 'q': case 'Q':
      case 'f': case 'd': case 'g':
      case 'O': case 's': case 'p':
        if (ctx->enc_type == *ts && got_Z == ctx->is_complex &&
            ctx->enc_packmode == ctx->new_packmode) {
          ctx->enc_count += ctx->new_count;
        } else {
          if (__Pyx_BufFmt_ProcessTypeChunk(ctx) == -1) return NULL;
          ctx->enc_count = ctx->new_count;
          ctx->enc_packmode = ctx->new_packmode;
          ctx->enc_type = *ts;
          ctx->is_complex = got_Z;
        }
        ++ts;
        ctx->new_count = 1;
        got_Z = 0;
        break;
      case ':':
        ++ts;
        while(*ts != ':') ++ts;
        ++ts;
        break;
      case '(':
        if (!__pyx_buffmt_parse_array(ctx, &ts)) return NULL;
        break;
      default:
        {
          int number = __Pyx_BufFmt_ExpectNumber(&ts);
          if (number == -1) return NULL;
          ctx->new_count = (size_t)number;
        }
    }
  }
}
static CYTHON_INLINE void __Pyx_ZeroBuffer(Py_buffer* buf) {
  buf->buf = NULL;
  buf->obj = NULL;
  buf->strides = __Pyx_zeros;
  buf->shape = __Pyx_zeros;
  buf->suboffsets = __Pyx_minusones;
}
static CYTHON_INLINE int __Pyx_GetBufferAndValidate(
        Py_buffer* buf, PyObject* obj,  __Pyx_TypeInfo* dtype, int flags,
        int nd, int cast, __Pyx_BufFmt_StackElem* stack)
{
  if (obj == Py_None || obj == NULL) {
    __Pyx_ZeroBuffer(buf);
    return 0;
  }
  buf->buf = NULL;
  if (__Pyx_GetBuffer(obj, buf, flags) == -1) goto fail;
  if (buf->ndim != nd) {
    PyErr_Format(PyExc_ValueError,
                 "Buffer has wrong number of dimensions (expected %d, got %d)",
                 nd, buf->ndim);
    goto fail;
  }
  if (!cast) {
    __Pyx_BufFmt_Context ctx;
    __Pyx_BufFmt_Init(&ctx, stack, dtype);
    if (!__Pyx_BufFmt_CheckString(&ctx, buf->format)) goto fail;
  }
  if ((unsigned)buf->itemsize != dtype->size) {
    PyErr_Format(PyExc_ValueError,
      "Item size of buffer (%" CYTHON_FORMAT_SSIZE_T "d byte%s) does not match size of '%s' (%" CYTHON_FORMAT_SSIZE_T "d byte%s)",
      buf->itemsize, (buf->itemsize > 1) ? "s" : "",
      dtype->name, (Py_ssize_t)dtype->size, (dtype->size > 1) ? "s" : "");
    goto fail;
  }
  if (buf->suboffsets == NULL) buf->suboffsets = __Pyx_minusones;
  return 0;
fail:;
  __Pyx_ZeroBuffer(buf);
  return -1;
}
static CYTHON_INLINE void __Pyx_SafeReleaseBuffer(Py_buffer* info) {
  if (info->buf == NULL) return;
  if (info->suboffsets == __Pyx_minusones) info->suboffsets = NULL;
  __Pyx_ReleaseBuffer(info);
}

static void __Pyx_RaiseBufferFallbackError(void) {
  PyErr_Format(PyExc_ValueError,
     "Buffer acquisition failed on assignment; and then reacquiring the old buffer failed too!");
}

static void __Pyx_RaiseBufferIndexError(int axis) {
  PyErr_Format(PyExc_IndexError,
     "Out of bounds on buffer access (axis %d)", axis);
}

static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable");
}

static CYTHON_INLINE PyObject *__Pyx_PyInt_to_py_Py_intptr_t(Py_intptr_t val) {
    const Py_intptr_t neg_one = (Py_intptr_t)-1, const_zero = (Py_intptr_t)0;
    const int is_unsigned = const_zero < neg_one;
    if ((sizeof(Py_intptr_t) == sizeof(char))  ||
        (sizeof(Py_intptr_t) == sizeof(short))) {
        return PyInt_FromLong((long)val);
    } else if ((sizeof(Py_intptr_t) == sizeof(int)) ||
               (sizeof(Py_intptr_t) == sizeof(long))) {
        if (is_unsigned)
            return PyLong_FromUnsignedLong((unsigned long)val);
        else
            return PyInt_FromLong((long)val);
    } else if (sizeof(Py_intptr_t) == sizeof(PY_LONG_LONG)) {
        if (is_unsigned)
            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG)val);
        else
            return PyLong_FromLongLong((PY_LONG_LONG)val);
    } else {
        int one = 1; int little = (int)*(unsigned char *)&one;
        unsigned char *bytes = (unsigned char *)&val;
        return _PyLong_FromByteArray(bytes, sizeof(Py_intptr_t),
                                     little, !is_unsigned);
    }
}

static CYTHON_INLINE void __Pyx_ExceptionSave(PyObject **type, PyObject **value, PyObject **tb) {
#if CYTHON_COMPILING_IN_CPYTHON
    PyThreadState *tstate = PyThreadState_GET();
    *type = tstate->exc_type;
    *value = tstate->exc_value;
    *tb = tstate->exc_traceback;
    Py_XINCREF(*type);
    Py_XINCREF(*value);
    Py_XINCREF(*tb);
#else
    PyErr_GetExcInfo(type, value, tb);
#endif
}
static void __Pyx_ExceptionReset(PyObject *type, PyObject *value, PyObject *tb) {
#if CYTHON_COMPILING_IN_CPYTHON
    PyObject *tmp_type, *tmp_value, *tmp_tb;
    PyThreadState *tstate = PyThreadState_GET();
    tmp_type = tstate->exc_type;
    tmp_value = tstate->exc_value;
    tmp_tb = tstate->exc_traceback;
    tstate->exc_type = type;
    tstate->exc_value = value;
    tstate->exc_traceback = tb;
    Py_XDECREF(tmp_type);
    Py_XDECREF(tmp_value);
    Py_XDECREF(tmp_tb);
#else
    PyErr_SetExcInfo(type, value, tb);
#endif
}

#if PY_MAJOR_VERSION < 3
static int __Pyx_GetBuffer(PyObject *obj, Py_buffer *view, int flags) {
    CYTHON_UNUSED PyObject *getbuffer_cobj;
  #if PY_VERSION_HEX >= 0x02060000
    if (PyObject_CheckBuffer(obj)) return PyObject_GetBuffer(obj, view, flags);
  #endif
        if (PyObject_TypeCheck(obj, __pyx_ptype_5numpy_ndarray)) return __pyx_pw_5numpy_7ndarray_1__getbuffer__(obj, view, flags);
  #if PY_VERSION_HEX < 0x02060000
    if (obj->ob_type->tp_dict &&
        (getbuffer_cobj = PyMapping_GetItemString(obj->ob_type->tp_dict,
                                             "__pyx_getbuffer"))) {
        getbufferproc func;
      #if PY_VERSION_HEX >= 0x02070000 && !(PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION == 0)
        func = (getbufferproc) PyCapsule_GetPointer(getbuffer_cobj, "getbuffer(obj, view, flags)");
      #else
        func = (getbufferproc) PyCObject_AsVoidPtr(getbuffer_cobj);
      #endif
        Py_DECREF(getbuffer_cobj);
        if (!func)
            goto fail;
        return func(obj, view, flags);
    } else {
        PyErr_Clear();
    }
  #endif
    PyErr_Format(PyExc_TypeError, "'%100s' does not have the buffer interface", Py_TYPE(obj)->tp_name);
#if PY_VERSION_HEX < 0x02060000
fail:
#endif
    return -1;
}
static void __Pyx_ReleaseBuffer(Py_buffer *view) {
    PyObject *obj = view->obj;
    CYTHON_UNUSED PyObject *releasebuffer_cobj;
    if (!obj) return;
  #if PY_VERSION_HEX >= 0x02060000
    if (PyObject_CheckBuffer(obj)) {
        PyBuffer_Release(view);
        return;
    }
  #endif
        if (PyObject_TypeCheck(obj, __pyx_ptype_5numpy_ndarray)) { __pyx_pw_5numpy_7ndarray_3__releasebuffer__(obj, view); return; }
  #if PY_VERSION_HEX < 0x02060000
    if (obj->ob_type->tp_dict &&
        (releasebuffer_cobj = PyMapping_GetItemString(obj->ob_type->tp_dict,
                                                      "__pyx_releasebuffer"))) {
        releasebufferproc func;
      #if PY_VERSION_HEX >= 0x02070000 && !(PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION == 0)
        func = (releasebufferproc) PyCapsule_GetPointer(releasebuffer_cobj, "releasebuffer(obj, view)");
      #else
        func = (releasebufferproc) PyCObject_AsVoidPtr(releasebuffer_cobj);
      #endif
        Py_DECREF(releasebuffer_cobj);
        if (!func)
            goto fail;
        func(obj, view);
        return;
    } else {
        PyErr_Clear();
    }
  #endif
    goto nofail;
#if PY_VERSION_HEX < 0x02060000
fail:
#endif
    PyErr_WriteUnraisable(obj);
nofail:
    Py_DECREF(obj);
    view->obj = NULL;
}
#endif /*  PY_MAJOR_VERSION < 3 */


    static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, long level) {
    PyObject *py_import = 0;
    PyObject *empty_list = 0;
    PyObject *module = 0;
    PyObject *global_dict = 0;
    PyObject *empty_dict = 0;
    PyObject *list;
    py_import = __Pyx_GetAttrString(__pyx_b, "__import__");
    if (!py_import)
        goto bad;
    if (from_list)
        list = from_list;
    else {
        empty_list = PyList_New(0);
        if (!empty_list)
            goto bad;
        list = empty_list;
    }
    global_dict = PyModule_GetDict(__pyx_m);
    if (!global_dict)
        goto bad;
    empty_dict = PyDict_New();
    if (!empty_dict)
        goto bad;
    #if PY_VERSION_HEX >= 0x02050000
    {
        #if PY_MAJOR_VERSION >= 3
        if (level == -1) {
            if (strchr(__Pyx_MODULE_NAME, '.')) {
                /* try package relative import first */
                PyObject *py_level = PyInt_FromLong(1);
                if (!py_level)
                    goto bad;
                module = PyObject_CallFunctionObjArgs(py_import,
                    name, global_dict, empty_dict, list, py_level, NULL);
                Py_DECREF(py_level);
                if (!module) {
                    if (!PyErr_ExceptionMatches(PyExc_ImportError))
                        goto bad;
                    PyErr_Clear();
                }
            }
            level = 0; /* try absolute import on failure */
        }
        #endif
        if (!module) {
            PyObject *py_level = PyInt_FromLong(level);
            if (!py_level)
                goto bad;
            module = PyObject_CallFunctionObjArgs(py_import,
                name, global_dict, empty_dict, list, py_level, NULL);
            Py_DECREF(py_level);
        }
    }
    #else
    if (level>0) {
        PyErr_SetString(PyExc_RuntimeError, "Relative import is not supported for Python <=2.4.");
        goto bad;
    }
    module = PyObject_CallFunctionObjArgs(py_import,
        name, global_dict, empty_dict, list, NULL);
    #endif
bad:
    Py_XDECREF(empty_list);
    Py_XDECREF(py_import);
    Py_XDECREF(empty_dict);
    return module;
}

static CYTHON_INLINE Py_intptr_t __Pyx_PyInt_from_py_Py_intptr_t(PyObject* x) {
    const Py_intptr_t neg_one = (Py_intptr_t)-1, const_zero = (Py_intptr_t)0;
    const int is_unsigned = const_zero < neg_one;
    if (sizeof(Py_intptr_t) == sizeof(char)) {
        if (is_unsigned)
            return (Py_intptr_t)__Pyx_PyInt_AsUnsignedChar(x);
        else
            return (Py_intptr_t)__Pyx_PyInt_AsSignedChar(x);
    } else if (sizeof(Py_intptr_t) == sizeof(short)) {
        if (is_unsigned)
            return (Py_intptr_t)__Pyx_PyInt_AsUnsignedShort(x);
        else
            return (Py_intptr_t)__Pyx_PyInt_AsSignedShort(x);
    } else if (sizeof(Py_intptr_t) == sizeof(int)) {
        if (is_unsigned)
            return (Py_intptr_t)__Pyx_PyInt_AsUnsignedInt(x);
        else
            return (Py_intptr_t)__Pyx_PyInt_AsSignedInt(x);
    } else if (sizeof(Py_intptr_t) == sizeof(long)) {
        if (is_unsigned)
            return (Py_intptr_t)__Pyx_PyInt_AsUnsignedLong(x);
        else
            return (Py_intptr_t)__Pyx_PyInt_AsSignedLong(x);
    } else if (sizeof(Py_intptr_t) == sizeof(PY_LONG_LONG)) {
        if (is_unsigned)
            return (Py_intptr_t)__Pyx_PyInt_AsUnsignedLongLong(x);
        else
            return (Py_intptr_t)__Pyx_PyInt_AsSignedLongLong(x);
    }  else {
        Py_intptr_t val;
        PyObject *v = __Pyx_PyNumber_Int(x);
        #if PY_VERSION_HEX < 0x03000000
        if (likely(v) && !PyLong_Check(v)) {
            PyObject *tmp = v;
            v = PyNumber_Long(tmp);
            Py_DECREF(tmp);
        }
        #endif
        if (likely(v)) {
            int one = 1; int is_little = (int)*(unsigned char *)&one;
            unsigned char *bytes = (unsigned char *)&val;
            int ret = _PyLong_AsByteArray((PyLongObject *)v,
                                          bytes, sizeof(val),
                                          is_little, !is_unsigned);
            Py_DECREF(v);
            if (likely(!ret))
                return val;
        }
        return (Py_intptr_t)-1;
    }
}

#if CYTHON_CCOMPLEX
  #ifdef __cplusplus
    static CYTHON_INLINE __pyx_t_float_complex __pyx_t_float_complex_from_parts(float x, float y) {
      return ::std::complex< float >(x, y);
    }
  #else
    static CYTHON_INLINE __pyx_t_float_complex __pyx_t_float_complex_from_parts(float x, float y) {
      return x + y*(__pyx_t_float_complex)_Complex_I;
    }
  #endif
#else
    static CYTHON_INLINE __pyx_t_float_complex __pyx_t_float_complex_from_parts(float x, float y) {
      __pyx_t_float_complex z;
      z.real = x;
      z.imag = y;
      return z;
    }
#endif

#if CYTHON_CCOMPLEX
#else
    static CYTHON_INLINE int __Pyx_c_eqf(__pyx_t_float_complex a, __pyx_t_float_complex b) {
       return (a.real == b.real) && (a.imag == b.imag);
    }
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_sumf(__pyx_t_float_complex a, __pyx_t_float_complex b) {
        __pyx_t_float_complex z;
        z.real = a.real + b.real;
        z.imag = a.imag + b.imag;
        return z;
    }
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_difff(__pyx_t_float_complex a, __pyx_t_float_complex b) {
        __pyx_t_float_complex z;
        z.real = a.real - b.real;
        z.imag = a.imag - b.imag;
        return z;
    }
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_prodf(__pyx_t_float_complex a, __pyx_t_float_complex b) {
        __pyx_t_float_complex z;
        z.real = a.real * b.real - a.imag * b.imag;
        z.imag = a.real * b.imag + a.imag * b.real;
        return z;
    }
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_quotf(__pyx_t_float_complex a, __pyx_t_float_complex b) {
        __pyx_t_float_complex z;
        float denom = b.real * b.real + b.imag * b.imag;
        z.real = (a.real * b.real + a.imag * b.imag) / denom;
        z.imag = (a.imag * b.real - a.real * b.imag) / denom;
        return z;
    }
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_negf(__pyx_t_float_complex a) {
        __pyx_t_float_complex z;
        z.real = -a.real;
        z.imag = -a.imag;
        return z;
    }
    static CYTHON_INLINE int __Pyx_c_is_zerof(__pyx_t_float_complex a) {
       return (a.real == 0) && (a.imag == 0);
    }
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_conjf(__pyx_t_float_complex a) {
        __pyx_t_float_complex z;
        z.real =  a.real;
        z.imag = -a.imag;
        return z;
    }
    #if 1
        static CYTHON_INLINE float __Pyx_c_absf(__pyx_t_float_complex z) {
          #if !defined(HAVE_HYPOT) || defined(_MSC_VER)
            return sqrtf(z.real*z.real + z.imag*z.imag);
          #else
            return hypotf(z.real, z.imag);
          #endif
        }
        static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_powf(__pyx_t_float_complex a, __pyx_t_float_complex b) {
            __pyx_t_float_complex z;
            float r, lnr, theta, z_r, z_theta;
            if (b.imag == 0 && b.real == (int)b.real) {
                if (b.real < 0) {
                    float denom = a.real * a.real + a.imag * a.imag;
                    a.real = a.real / denom;
                    a.imag = -a.imag / denom;
                    b.real = -b.real;
                }
                switch ((int)b.real) {
                    case 0:
                        z.real = 1;
                        z.imag = 0;
                        return z;
                    case 1:
                        return a;
                    case 2:
                        z = __Pyx_c_prodf(a, a);
                        return __Pyx_c_prodf(a, a);
                    case 3:
                        z = __Pyx_c_prodf(a, a);
                        return __Pyx_c_prodf(z, a);
                    case 4:
                        z = __Pyx_c_prodf(a, a);
                        return __Pyx_c_prodf(z, z);
                }
            }
            if (a.imag == 0) {
                if (a.real == 0) {
                    return a;
                }
                r = a.real;
                theta = 0;
            } else {
                r = __Pyx_c_absf(a);
                theta = atan2f(a.imag, a.real);
            }
            lnr = logf(r);
            z_r = expf(lnr * b.real - theta * b.imag);
            z_theta = theta * b.real + lnr * b.imag;
            z.real = z_r * cosf(z_theta);
            z.imag = z_r * sinf(z_theta);
            return z;
        }
    #endif
#endif

#if CYTHON_CCOMPLEX
  #ifdef __cplusplus
    static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(double x, double y) {
      return ::std::complex< double >(x, y);
    }
  #else
    static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(double x, double y) {
      return x + y*(__pyx_t_double_complex)_Complex_I;
    }
  #endif
#else
    static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(double x, double y) {
      __pyx_t_double_complex z;
      z.real = x;
      z.imag = y;
      return z;
    }
#endif

#if CYTHON_CCOMPLEX
#else
    static CYTHON_INLINE int __Pyx_c_eq(__pyx_t_double_complex a, __pyx_t_double_complex b) {
       return (a.real == b.real) && (a.imag == b.imag);
    }
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_sum(__pyx_t_double_complex a, __pyx_t_double_complex b) {
        __pyx_t_double_complex z;
        z.real = a.real + b.real;
        z.imag = a.imag + b.imag;
        return z;
    }
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_diff(__pyx_t_double_complex a, __pyx_t_double_complex b) {
        __pyx_t_double_complex z;
        z.real = a.real - b.real;
        z.imag = a.imag - b.imag;
        return z;
    }
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_prod(__pyx_t_double_complex a, __pyx_t_double_complex b) {
        __pyx_t_double_complex z;
        z.real = a.real * b.real - a.imag * b.imag;
        z.imag = a.real * b.imag + a.imag * b.real;
        return z;
    }
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_quot(__pyx_t_double_complex a, __pyx_t_double_complex b) {
        __pyx_t_double_complex z;
        double denom = b.real * b.real + b.imag * b.imag;
        z.real = (a.real * b.real + a.imag * b.imag) / denom;
        z.imag = (a.imag * b.real - a.real * b.imag) / denom;
        return z;
    }
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_neg(__pyx_t_double_complex a) {
        __pyx_t_double_complex z;
        z.real = -a.real;
        z.imag = -a.imag;
        return z;
    }
    static CYTHON_INLINE int __Pyx_c_is_zero(__pyx_t_double_complex a) {
       return (a.real == 0) && (a.imag == 0);
    }
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_conj(__pyx_t_double_complex a) {
        __pyx_t_double_complex z;
        z.real =  a.real;
        z.imag = -a.imag;
        return z;
    }
    #if 1
        static CYTHON_INLINE double __Pyx_c_abs(__pyx_t_double_complex z) {
          #if !defined(HAVE_HYPOT) || defined(_MSC_VER)
            return sqrt(z.real*z.real + z.imag*z.imag);
          #else
            return hypot(z.real, z.imag);
          #endif
        }
        static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_pow(__pyx_t_double_complex a, __pyx_t_double_complex b) {
            __pyx_t_double_complex z;
            double r, lnr, theta, z_r, z_theta;
            if (b.imag == 0 && b.real == (int)b.real) {
                if (b.real < 0) {
                    double denom = a.real * a.real + a.imag * a.imag;
                    a.real = a.real / denom;
                    a.imag = -a.imag / denom;
                    b.real = -b.real;
                }
                switch ((int)b.real) {
                    case 0:
                        z.real = 1;
                        z.imag = 0;
                        return z;
                    case 1:
                        return a;
                    case 2:
                        z = __Pyx_c_prod(a, a);
                        return __Pyx_c_prod(a, a);
                    case 3:
                        z = __Pyx_c_prod(a, a);
                        return __Pyx_c_prod(z, a);
                    case 4:
                        z = __Pyx_c_prod(a, a);
                        return __Pyx_c_prod(z, z);
                }
            }
            if (a.imag == 0) {
                if (a.real == 0) {
                    return a;
                }
                r = a.real;
                theta = 0;
            } else {
                r = __Pyx_c_abs(a);
                theta = atan2(a.imag, a.real);
            }
            lnr = log(r);
            z_r = exp(lnr * b.real - theta * b.imag);
            z_theta = theta * b.real + lnr * b.imag;
            z.real = z_r * cos(z_theta);
            z.imag = z_r * sin(z_theta);
            return z;
        }
    #endif
#endif

static CYTHON_INLINE unsigned char __Pyx_PyInt_AsUnsignedChar(PyObject* x) {
    const unsigned char neg_one = (unsigned char)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(unsigned char) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(unsigned char)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to unsigned char" :
                    "value too large to convert to unsigned char");
            }
            return (unsigned char)-1;
        }
        return (unsigned char)val;
    }
    return (unsigned char)__Pyx_PyInt_AsUnsignedLong(x);
}

static CYTHON_INLINE unsigned short __Pyx_PyInt_AsUnsignedShort(PyObject* x) {
    const unsigned short neg_one = (unsigned short)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(unsigned short) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(unsigned short)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to unsigned short" :
                    "value too large to convert to unsigned short");
            }
            return (unsigned short)-1;
        }
        return (unsigned short)val;
    }
    return (unsigned short)__Pyx_PyInt_AsUnsignedLong(x);
}

static CYTHON_INLINE unsigned int __Pyx_PyInt_AsUnsignedInt(PyObject* x) {
    const unsigned int neg_one = (unsigned int)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(unsigned int) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(unsigned int)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to unsigned int" :
                    "value too large to convert to unsigned int");
            }
            return (unsigned int)-1;
        }
        return (unsigned int)val;
    }
    return (unsigned int)__Pyx_PyInt_AsUnsignedLong(x);
}

static CYTHON_INLINE char __Pyx_PyInt_AsChar(PyObject* x) {
    const char neg_one = (char)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(char) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(char)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to char" :
                    "value too large to convert to char");
            }
            return (char)-1;
        }
        return (char)val;
    }
    return (char)__Pyx_PyInt_AsLong(x);
}

static CYTHON_INLINE short __Pyx_PyInt_AsShort(PyObject* x) {
    const short neg_one = (short)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(short) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(short)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to short" :
                    "value too large to convert to short");
            }
            return (short)-1;
        }
        return (short)val;
    }
    return (short)__Pyx_PyInt_AsLong(x);
}

static CYTHON_INLINE int __Pyx_PyInt_AsInt(PyObject* x) {
    const int neg_one = (int)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(int) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(int)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to int" :
                    "value too large to convert to int");
            }
            return (int)-1;
        }
        return (int)val;
    }
    return (int)__Pyx_PyInt_AsLong(x);
}

static CYTHON_INLINE signed char __Pyx_PyInt_AsSignedChar(PyObject* x) {
    const signed char neg_one = (signed char)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(signed char) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(signed char)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to signed char" :
                    "value too large to convert to signed char");
            }
            return (signed char)-1;
        }
        return (signed char)val;
    }
    return (signed char)__Pyx_PyInt_AsSignedLong(x);
}

static CYTHON_INLINE signed short __Pyx_PyInt_AsSignedShort(PyObject* x) {
    const signed short neg_one = (signed short)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(signed short) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(signed short)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to signed short" :
                    "value too large to convert to signed short");
            }
            return (signed short)-1;
        }
        return (signed short)val;
    }
    return (signed short)__Pyx_PyInt_AsSignedLong(x);
}

static CYTHON_INLINE signed int __Pyx_PyInt_AsSignedInt(PyObject* x) {
    const signed int neg_one = (signed int)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(signed int) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(signed int)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to signed int" :
                    "value too large to convert to signed int");
            }
            return (signed int)-1;
        }
        return (signed int)val;
    }
    return (signed int)__Pyx_PyInt_AsSignedLong(x);
}

static CYTHON_INLINE int __Pyx_PyInt_AsLongDouble(PyObject* x) {
    const int neg_one = (int)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(int) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(int)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to int" :
                    "value too large to convert to int");
            }
            return (int)-1;
        }
        return (int)val;
    }
    return (int)__Pyx_PyInt_AsLong(x);
}

static CYTHON_INLINE unsigned long __Pyx_PyInt_AsUnsignedLong(PyObject* x) {
    const unsigned long neg_one = (unsigned long)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
#if PY_VERSION_HEX < 0x03000000
    if (likely(PyInt_Check(x))) {
        long val = PyInt_AS_LONG(x);
        if (is_unsigned && unlikely(val < 0)) {
            PyErr_SetString(PyExc_OverflowError,
                            "can't convert negative value to unsigned long");
            return (unsigned long)-1;
        }
        return (unsigned long)val;
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
            if (unlikely(Py_SIZE(x) < 0)) {
                PyErr_SetString(PyExc_OverflowError,
                                "can't convert negative value to unsigned long");
                return (unsigned long)-1;
            }
            return (unsigned long)PyLong_AsUnsignedLong(x);
        } else {
            return (unsigned long)PyLong_AsLong(x);
        }
    } else {
        unsigned long val;
        PyObject *tmp = __Pyx_PyNumber_Int(x);
        if (!tmp) return (unsigned long)-1;
        val = __Pyx_PyInt_AsUnsignedLong(tmp);
        Py_DECREF(tmp);
        return val;
    }
}

static CYTHON_INLINE unsigned PY_LONG_LONG __Pyx_PyInt_AsUnsignedLongLong(PyObject* x) {
    const unsigned PY_LONG_LONG neg_one = (unsigned PY_LONG_LONG)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
#if PY_VERSION_HEX < 0x03000000
    if (likely(PyInt_Check(x))) {
        long val = PyInt_AS_LONG(x);
        if (is_unsigned && unlikely(val < 0)) {
            PyErr_SetString(PyExc_OverflowError,
                            "can't convert negative value to unsigned PY_LONG_LONG");
            return (unsigned PY_LONG_LONG)-1;
        }
        return (unsigned PY_LONG_LONG)val;
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
            if (unlikely(Py_SIZE(x) < 0)) {
                PyErr_SetString(PyExc_OverflowError,
                                "can't convert negative value to unsigned PY_LONG_LONG");
                return (unsigned PY_LONG_LONG)-1;
            }
            return (unsigned PY_LONG_LONG)PyLong_AsUnsignedLongLong(x);
        } else {
            return (unsigned PY_LONG_LONG)PyLong_AsLongLong(x);
        }
    } else {
        unsigned PY_LONG_LONG val;
        PyObject *tmp = __Pyx_PyNumber_Int(x);
        if (!tmp) return (unsigned PY_LONG_LONG)-1;
        val = __Pyx_PyInt_AsUnsignedLongLong(tmp);
        Py_DECREF(tmp);
        return val;
    }
}

static CYTHON_INLINE long __Pyx_PyInt_AsLong(PyObject* x) {
    const long neg_one = (long)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
#if PY_VERSION_HEX < 0x03000000
    if (likely(PyInt_Check(x))) {
        long val = PyInt_AS_LONG(x);
        if (is_unsigned && unlikely(val < 0)) {
            PyErr_SetString(PyExc_OverflowError,
                            "can't convert negative value to long");
            return (long)-1;
        }
        return (long)val;
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
            if (unlikely(Py_SIZE(x) < 0)) {
                PyErr_SetString(PyExc_OverflowError,
                                "can't convert negative value to long");
                return (long)-1;
            }
            return (long)PyLong_AsUnsignedLong(x);
        } else {
            return (long)PyLong_AsLong(x);
        }
    } else {
        long val;
        PyObject *tmp = __Pyx_PyNumber_Int(x);
        if (!tmp) return (long)-1;
        val = __Pyx_PyInt_AsLong(tmp);
        Py_DECREF(tmp);
        return val;
    }
}

static CYTHON_INLINE PY_LONG_LONG __Pyx_PyInt_AsLongLong(PyObject* x) {
    const PY_LONG_LONG neg_one = (PY_LONG_LONG)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
#if PY_VERSION_HEX < 0x03000000
    if (likely(PyInt_Check(x))) {
        long val = PyInt_AS_LONG(x);
        if (is_unsigned && unlikely(val < 0)) {
            PyErr_SetString(PyExc_OverflowError,
                            "can't convert negative value to PY_LONG_LONG");
            return (PY_LONG_LONG)-1;
        }
        return (PY_LONG_LONG)val;
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
            if (unlikely(Py_SIZE(x) < 0)) {
                PyErr_SetString(PyExc_OverflowError,
                                "can't convert negative value to PY_LONG_LONG");
                return (PY_LONG_LONG)-1;
            }
            return (PY_LONG_LONG)PyLong_AsUnsignedLongLong(x);
        } else {
            return (PY_LONG_LONG)PyLong_AsLongLong(x);
        }
    } else {
        PY_LONG_LONG val;
        PyObject *tmp = __Pyx_PyNumber_Int(x);
        if (!tmp) return (PY_LONG_LONG)-1;
        val = __Pyx_PyInt_AsLongLong(tmp);
        Py_DECREF(tmp);
        return val;
    }
}

static CYTHON_INLINE signed long __Pyx_PyInt_AsSignedLong(PyObject* x) {
    const signed long neg_one = (signed long)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
#if PY_VERSION_HEX < 0x03000000
    if (likely(PyInt_Check(x))) {
        long val = PyInt_AS_LONG(x);
        if (is_unsigned && unlikely(val < 0)) {
            PyErr_SetString(PyExc_OverflowError,
                            "can't convert negative value to signed long");
            return (signed long)-1;
        }
        return (signed long)val;
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
            if (unlikely(Py_SIZE(x) < 0)) {
                PyErr_SetString(PyExc_OverflowError,
                                "can't convert negative value to signed long");
                return (signed long)-1;
            }
            return (signed long)PyLong_AsUnsignedLong(x);
        } else {
            return (signed long)PyLong_AsLong(x);
        }
    } else {
        signed long val;
        PyObject *tmp = __Pyx_PyNumber_Int(x);
        if (!tmp) return (signed long)-1;
        val = __Pyx_PyInt_AsSignedLong(tmp);
        Py_DECREF(tmp);
        return val;
    }
}

static CYTHON_INLINE signed PY_LONG_LONG __Pyx_PyInt_AsSignedLongLong(PyObject* x) {
    const signed PY_LONG_LONG neg_one = (signed PY_LONG_LONG)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
#if PY_VERSION_HEX < 0x03000000
    if (likely(PyInt_Check(x))) {
        long val = PyInt_AS_LONG(x);
        if (is_unsigned && unlikely(val < 0)) {
            PyErr_SetString(PyExc_OverflowError,
                            "can't convert negative value to signed PY_LONG_LONG");
            return (signed PY_LONG_LONG)-1;
        }
        return (signed PY_LONG_LONG)val;
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
            if (unlikely(Py_SIZE(x) < 0)) {
                PyErr_SetString(PyExc_OverflowError,
                                "can't convert negative value to signed PY_LONG_LONG");
                return (signed PY_LONG_LONG)-1;
            }
            return (signed PY_LONG_LONG)PyLong_AsUnsignedLongLong(x);
        } else {
            return (signed PY_LONG_LONG)PyLong_AsLongLong(x);
        }
    } else {
        signed PY_LONG_LONG val;
        PyObject *tmp = __Pyx_PyNumber_Int(x);
        if (!tmp) return (signed PY_LONG_LONG)-1;
        val = __Pyx_PyInt_AsSignedLongLong(tmp);
        Py_DECREF(tmp);
        return val;
    }
}

static void __Pyx_WriteUnraisable(const char *name, CYTHON_UNUSED int clineno,
                                  CYTHON_UNUSED int lineno, CYTHON_UNUSED const char *filename) {
    PyObject *old_exc, *old_val, *old_tb;
    PyObject *ctx;
    __Pyx_ErrFetch(&old_exc, &old_val, &old_tb);
    #if PY_MAJOR_VERSION < 3
    ctx = PyString_FromString(name);
    #else
    ctx = PyUnicode_FromString(name);
    #endif
    __Pyx_ErrRestore(old_exc, old_val, old_tb);
    if (!ctx) {
        PyErr_WriteUnraisable(Py_None);
    } else {
        PyErr_WriteUnraisable(ctx);
        Py_DECREF(ctx);
    }
}

static int __Pyx_check_binary_version(void) {
    char ctversion[4], rtversion[4];
    PyOS_snprintf(ctversion, 4, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION);
    PyOS_snprintf(rtversion, 4, "%s", Py_GetVersion());
    if (ctversion[0] != rtversion[0] || ctversion[2] != rtversion[2]) {
        char message[200];
        PyOS_snprintf(message, sizeof(message),
                      "compiletime version %s of module '%.100s' "
                      "does not match runtime version %s",
                      ctversion, __Pyx_MODULE_NAME, rtversion);
        #if PY_VERSION_HEX < 0x02050000
        return PyErr_Warn(NULL, message);
        #else
        return PyErr_WarnEx(NULL, message, 1);
        #endif
    }
    return 0;
}

static int __Pyx_SetVtable(PyObject *dict, void *vtable) {
#if PY_VERSION_HEX >= 0x02070000 && !(PY_MAJOR_VERSION==3&&PY_MINOR_VERSION==0)
    PyObject *ob = PyCapsule_New(vtable, 0, 0);
#else
    PyObject *ob = PyCObject_FromVoidPtr(vtable, 0);
#endif
    if (!ob)
        goto bad;
    if (PyDict_SetItemString(dict, "__pyx_vtable__", ob) < 0)
        goto bad;
    Py_DECREF(ob);
    return 0;
bad:
    Py_XDECREF(ob);
    return -1;
}

#ifndef __PYX_HAVE_RT_ImportModule
#define __PYX_HAVE_RT_ImportModule
static PyObject *__Pyx_ImportModule(const char *name) {
    PyObject *py_name = 0;
    PyObject *py_module = 0;
    py_name = __Pyx_PyIdentifier_FromString(name);
    if (!py_name)
        goto bad;
    py_module = PyImport_Import(py_name);
    Py_DECREF(py_name);
    return py_module;
bad:
    Py_XDECREF(py_name);
    return 0;
}
#endif

#ifndef __PYX_HAVE_RT_ImportType
#define __PYX_HAVE_RT_ImportType
static PyTypeObject *__Pyx_ImportType(const char *module_name, const char *class_name,
    size_t size, int strict)
{
    PyObject *py_module = 0;
    PyObject *result = 0;
    PyObject *py_name = 0;
    char warning[200];
    py_module = __Pyx_ImportModule(module_name);
    if (!py_module)
        goto bad;
    py_name = __Pyx_PyIdentifier_FromString(class_name);
    if (!py_name)
        goto bad;
    result = PyObject_GetAttr(py_module, py_name);
    Py_DECREF(py_name);
    py_name = 0;
    Py_DECREF(py_module);
    py_module = 0;
    if (!result)
        goto bad;
    if (!PyType_Check(result)) {
        PyErr_Format(PyExc_TypeError,
            "%s.%s is not a type object",
            module_name, class_name);
        goto bad;
    }
    if (!strict && (size_t)((PyTypeObject *)result)->tp_basicsize > size) {
        PyOS_snprintf(warning, sizeof(warning),
            "%s.%s size changed, may indicate binary incompatibility",
            module_name, class_name);
        #if PY_VERSION_HEX < 0x02050000
        if (PyErr_Warn(NULL, warning) < 0) goto bad;
        #else
        if (PyErr_WarnEx(NULL, warning, 0) < 0) goto bad;
        #endif
    }
    else if ((size_t)((PyTypeObject *)result)->tp_basicsize != size) {
        PyErr_Format(PyExc_ValueError,
            "%s.%s has the wrong size, try recompiling",
            module_name, class_name);
        goto bad;
    }
    return (PyTypeObject *)result;
bad:
    Py_XDECREF(py_module);
    Py_XDECREF(result);
    return NULL;
}
#endif

static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line) {
    int start = 0, mid = 0, end = count - 1;
    if (end >= 0 && code_line > entries[end].code_line) {
        return count;
    }
    while (start < end) {
        mid = (start + end) / 2;
        if (code_line < entries[mid].code_line) {
            end = mid;
        } else if (code_line > entries[mid].code_line) {
             start = mid + 1;
        } else {
            return mid;
        }
    }
    if (code_line <= entries[mid].code_line) {
        return mid;
    } else {
        return mid + 1;
    }
}
static PyCodeObject *__pyx_find_code_object(int code_line) {
    PyCodeObject* code_object;
    int pos;
    if (unlikely(!code_line) || unlikely(!__pyx_code_cache.entries)) {
        return NULL;
    }
    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
    if (unlikely(pos >= __pyx_code_cache.count) || unlikely(__pyx_code_cache.entries[pos].code_line != code_line)) {
        return NULL;
    }
    code_object = __pyx_code_cache.entries[pos].code_object;
    Py_INCREF(code_object);
    return code_object;
}
static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
    int pos, i;
    __Pyx_CodeObjectCacheEntry* entries = __pyx_code_cache.entries;
    if (unlikely(!code_line)) {
        return;
    }
    if (unlikely(!entries)) {
        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Malloc(64*sizeof(__Pyx_CodeObjectCacheEntry));
        if (likely(entries)) {
            __pyx_code_cache.entries = entries;
            __pyx_code_cache.max_count = 64;
            __pyx_code_cache.count = 1;
            entries[0].code_line = code_line;
            entries[0].code_object = code_object;
            Py_INCREF(code_object);
        }
        return;
    }
    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
    if ((pos < __pyx_code_cache.count) && unlikely(__pyx_code_cache.entries[pos].code_line == code_line)) {
        PyCodeObject* tmp = entries[pos].code_object;
        entries[pos].code_object = code_object;
        Py_DECREF(tmp);
        return;
    }
    if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
        int new_max = __pyx_code_cache.max_count + 64;
        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
            __pyx_code_cache.entries, new_max*sizeof(__Pyx_CodeObjectCacheEntry));
        if (unlikely(!entries)) {
            return;
        }
        __pyx_code_cache.entries = entries;
        __pyx_code_cache.max_count = new_max;
    }
    for (i=__pyx_code_cache.count; i>pos; i--) {
        entries[i] = entries[i-1];
    }
    entries[pos].code_line = code_line;
    entries[pos].code_object = code_object;
    __pyx_code_cache.count++;
    Py_INCREF(code_object);
}

#include "compile.h"
#include "frameobject.h"
#include "traceback.h"
static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
            const char *funcname, int c_line,
            int py_line, const char *filename) {
    PyCodeObject *py_code = 0;
    PyObject *py_srcfile = 0;
    PyObject *py_funcname = 0;
    #if PY_MAJOR_VERSION < 3
    py_srcfile = PyString_FromString(filename);
    #else
    py_srcfile = PyUnicode_FromString(filename);
    #endif
    if (!py_srcfile) goto bad;
    if (c_line) {
        #if PY_MAJOR_VERSION < 3
        py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
        #else
        py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
        #endif
    }
    else {
        #if PY_MAJOR_VERSION < 3
        py_funcname = PyString_FromString(funcname);
        #else
        py_funcname = PyUnicode_FromString(funcname);
        #endif
    }
    if (!py_funcname) goto bad;
    py_code = __Pyx_PyCode_New(
        0,            /*int argcount,*/
        0,            /*int kwonlyargcount,*/
        0,            /*int nlocals,*/
        0,            /*int stacksize,*/
        0,            /*int flags,*/
        __pyx_empty_bytes, /*PyObject *code,*/
        __pyx_empty_tuple, /*PyObject *consts,*/
        __pyx_empty_tuple, /*PyObject *names,*/
        __pyx_empty_tuple, /*PyObject *varnames,*/
        __pyx_empty_tuple, /*PyObject *freevars,*/
        __pyx_empty_tuple, /*PyObject *cellvars,*/
        py_srcfile,   /*PyObject *filename,*/
        py_funcname,  /*PyObject *name,*/
        py_line,      /*int firstlineno,*/
        __pyx_empty_bytes  /*PyObject *lnotab*/
    );
    Py_DECREF(py_srcfile);
    Py_DECREF(py_funcname);
    return py_code;
bad:
    Py_XDECREF(py_srcfile);
    Py_XDECREF(py_funcname);
    return NULL;
}
static void __Pyx_AddTraceback(const char *funcname, int c_line,
                               int py_line, const char *filename) {
    PyCodeObject *py_code = 0;
    PyObject *py_globals = 0;
    PyFrameObject *py_frame = 0;
    py_code = __pyx_find_code_object(c_line ? c_line : py_line);
    if (!py_code) {
        py_code = __Pyx_CreateCodeObjectForTraceback(
            funcname, c_line, py_line, filename);
        if (!py_code) goto bad;
        __pyx_insert_code_object(c_line ? c_line : py_line, py_code);
    }
    py_globals = PyModule_GetDict(__pyx_m);
    if (!py_globals) goto bad;
    py_frame = PyFrame_New(
        PyThreadState_GET(), /*PyThreadState *tstate,*/
        py_code,             /*PyCodeObject *code,*/
        py_globals,          /*PyObject *globals,*/
        0                    /*PyObject *locals*/
    );
    if (!py_frame) goto bad;
    py_frame->f_lineno = py_line;
    PyTraceBack_Here(py_frame);
bad:
    Py_XDECREF(py_code);
    Py_XDECREF(py_frame);
}

static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
    while (t->p) {
        #if PY_MAJOR_VERSION < 3
        if (t->is_unicode) {
            *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL);
        } else if (t->intern) {
            *t->p = PyString_InternFromString(t->s);
        } else {
            *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
        }
        #else  /* Python 3+ has unicode identifiers */
        if (t->is_unicode | t->is_str) {
            if (t->intern) {
                *t->p = PyUnicode_InternFromString(t->s);
            } else if (t->encoding) {
                *t->p = PyUnicode_Decode(t->s, t->n - 1, t->encoding, NULL);
            } else {
                *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1);
            }
        } else {
            *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1);
        }
        #endif
        if (!*t->p)
            return -1;
        ++t;
    }
    return 0;
}


/* Type Conversion Functions */

static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
   int is_true = x == Py_True;
   if (is_true | (x == Py_False) | (x == Py_None)) return is_true;
   else return PyObject_IsTrue(x);
}

static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x) {
  PyNumberMethods *m;
  const char *name = NULL;
  PyObject *res = NULL;
#if PY_VERSION_HEX < 0x03000000
  if (PyInt_Check(x) || PyLong_Check(x))
#else
  if (PyLong_Check(x))
#endif
    return Py_INCREF(x), x;
  m = Py_TYPE(x)->tp_as_number;
#if PY_VERSION_HEX < 0x03000000
  if (m && m->nb_int) {
    name = "int";
    res = PyNumber_Int(x);
  }
  else if (m && m->nb_long) {
    name = "long";
    res = PyNumber_Long(x);
  }
#else
  if (m && m->nb_int) {
    name = "int";
    res = PyNumber_Long(x);
  }
#endif
  if (res) {
#if PY_VERSION_HEX < 0x03000000
    if (!PyInt_Check(res) && !PyLong_Check(res)) {
#else
    if (!PyLong_Check(res)) {
#endif
      PyErr_Format(PyExc_TypeError,
                   "__%s__ returned non-%s (type %.200s)",
                   name, name, Py_TYPE(res)->tp_name);
      Py_DECREF(res);
      return NULL;
    }
  }
  else if (!PyErr_Occurred()) {
    PyErr_SetString(PyExc_TypeError,
                    "an integer is required");
  }
  return res;
}

static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
  Py_ssize_t ival;
  PyObject* x = PyNumber_Index(b);
  if (!x) return -1;
  ival = PyInt_AsSsize_t(x);
  Py_DECREF(x);
  return ival;
}

static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
#if PY_VERSION_HEX < 0x02050000
   if (ival <= LONG_MAX)
       return PyInt_FromLong((long)ival);
   else {
       unsigned char *bytes = (unsigned char *) &ival;
       int one = 1; int little = (int)*(unsigned char*)&one;
       return _PyLong_FromByteArray(bytes, sizeof(size_t), little, 0);
   }
#else
   return PyInt_FromSize_t(ival);
#endif
}

static CYTHON_INLINE size_t __Pyx_PyInt_AsSize_t(PyObject* x) {
   unsigned PY_LONG_LONG val = __Pyx_PyInt_AsUnsignedLongLong(x);
   if (unlikely(val == (unsigned PY_LONG_LONG)-1 && PyErr_Occurred())) {
       return (size_t)-1;
   } else if (unlikely(val != (unsigned PY_LONG_LONG)(size_t)val)) {
       PyErr_SetString(PyExc_OverflowError,
                       "value too large to convert to size_t");
       return (size_t)-1;
   }
   return (size_t)val;
}


#endif /* Py_PYTHON_H */
