
//  (C) Copyright John maddock 1999.
//  (C) David Abrahams 2002.  Distributed under the Boost
//  Software License, Version 1.0. (See accompanying file
//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// use this header as a workaround for missing <limits>

//  See http://www.boost.org/libs/compatibility/index.html for documentation.

#ifndef BOOST_LIMITS
#define BOOST_LIMITS

#include <boost/config.hpp>

#ifdef BOOST_NO_LIMITS
#  error "There is no std::numeric_limits suppport available."
#else
# include <limits>
#endif

#if (defined(BOOST_HAS_LONG_LONG) && defined(BOOST_NO_LONG_LONG_NUMERIC_LIMITS)) \
      || (defined(BOOST_HAS_MS_INT64) && defined(BOOST_NO_MS_INT64_NUMERIC_LIMITS))
// Add missing specializations for numeric_limits:
#ifdef BOOST_HAS_MS_INT64
#  define BOOST_LLT __int64
#  define BOOST_ULLT unsigned __int64
#else
#  define BOOST_LLT  ::boost::long_long_type
#  define BOOST_ULLT  ::boost::ulong_long_type
#endif

#include <climits>  // for CHAR_BIT

namespace std {
template<>
class numeric_limits<BOOST_LLT>
{
  public:

    BOOST_STATIC_CONSTANT(bool, is_specialized = true);
#ifdef BOOST_HAS_MS_INT64
    static BOOST_LLT min
    BOOST_PREVENT_MACRO_SUBSTITUTION ()
    {
        return 0x8000000000000000i64;
    }
    static BOOST_LLT max
    BOOST_PREVENT_MACRO_SUBSTITUTION ()
    {
        return 0x7FFFFFFFFFFFFFFFi64;
    }
#elif defined(LLONG_MAX)
    static BOOST_LLT min
    BOOST_PREVENT_MACRO_SUBSTITUTION ()
    {
        return LLONG_MIN;
    }
    static BOOST_LLT max
    BOOST_PREVENT_MACRO_SUBSTITUTION ()
    {
        return LLONG_MAX;
    }
#elif defined(LONGLONG_MAX)
    static BOOST_LLT min
    BOOST_PREVENT_MACRO_SUBSTITUTION ()
    {
        return LONGLONG_MIN;
    }
    static BOOST_LLT max
    BOOST_PREVENT_MACRO_SUBSTITUTION ()
    {
        return LONGLONG_MAX;
    }
#else
    static BOOST_LLT min
    BOOST_PREVENT_MACRO_SUBSTITUTION ()
    {
        return 1LL << (sizeof(BOOST_LLT) * CHAR_BIT - 1);
    }
    static BOOST_LLT max
    BOOST_PREVENT_MACRO_SUBSTITUTION ()
    {
        return ~(min)();
    }
#endif
    BOOST_STATIC_CONSTANT(int, digits = sizeof(BOOST_LLT) * CHAR_BIT -1);
    BOOST_STATIC_CONSTANT(int, digits10 = (CHAR_BIT * sizeof (BOOST_LLT) - 1) * 301L / 1000);
    BOOST_STATIC_CONSTANT(bool, is_signed = true);
    BOOST_STATIC_CONSTANT(bool, is_integer = true);
    BOOST_STATIC_CONSTANT(bool, is_exact = true);
    BOOST_STATIC_CONSTANT(int, radix = 2);
    static BOOST_LLT
    epsilon() throw()
    {
        return 0;
    };
    static BOOST_LLT
    round_error() throw()
    {
        return 0;
    };

    BOOST_STATIC_CONSTANT(int, min_exponent = 0);
    BOOST_STATIC_CONSTANT(int, min_exponent10 = 0);
    BOOST_STATIC_CONSTANT(int, max_exponent = 0);
    BOOST_STATIC_CONSTANT(int, max_exponent10 = 0);

    BOOST_STATIC_CONSTANT(bool, has_infinity = false);
    BOOST_STATIC_CONSTANT(bool, has_quiet_NaN = false);
    BOOST_STATIC_CONSTANT(bool, has_signaling_NaN = false);
    BOOST_STATIC_CONSTANT(bool, has_denorm = false);
    BOOST_STATIC_CONSTANT(bool, has_denorm_loss = false);
    static BOOST_LLT
    infinity() throw()
    {
        return 0;
    };
    static BOOST_LLT
    quiet_NaN() throw()
    {
        return 0;
    };
    static BOOST_LLT
    signaling_NaN() throw()
    {
        return 0;
    };
    static BOOST_LLT
    denorm_min() throw()
    {
        return 0;
    };

    BOOST_STATIC_CONSTANT(bool, is_iec559 = false);
    BOOST_STATIC_CONSTANT(bool, is_bounded = true);
    BOOST_STATIC_CONSTANT(bool, is_modulo = true);

    BOOST_STATIC_CONSTANT(bool, traps = false);
    BOOST_STATIC_CONSTANT(bool, tinyness_before = false);
    BOOST_STATIC_CONSTANT(float_round_style, round_style = round_toward_zero);

};

template<>
class numeric_limits<BOOST_ULLT>
{
  public:

    BOOST_STATIC_CONSTANT(bool, is_specialized = true);
#ifdef BOOST_HAS_MS_INT64
    static BOOST_ULLT min
    BOOST_PREVENT_MACRO_SUBSTITUTION ()
    {
        return 0ui64;
    }
    static BOOST_ULLT max
    BOOST_PREVENT_MACRO_SUBSTITUTION ()
    {
        return 0xFFFFFFFFFFFFFFFFui64;
    }
#elif defined(ULLONG_MAX) && defined(ULLONG_MIN)
    static BOOST_ULLT min
    BOOST_PREVENT_MACRO_SUBSTITUTION ()
    {
        return ULLONG_MIN;
    }
    static BOOST_ULLT max
    BOOST_PREVENT_MACRO_SUBSTITUTION ()
    {
        return ULLONG_MAX;
    }
#elif defined(ULONGLONG_MAX) && defined(ULONGLONG_MIN)
    static BOOST_ULLT min
    BOOST_PREVENT_MACRO_SUBSTITUTION ()
    {
        return ULONGLONG_MIN;
    }
    static BOOST_ULLT max
    BOOST_PREVENT_MACRO_SUBSTITUTION ()
    {
        return ULONGLONG_MAX;
    }
#else
    static BOOST_ULLT min
    BOOST_PREVENT_MACRO_SUBSTITUTION ()
    {
        return 0uLL;
    }
    static BOOST_ULLT max
    BOOST_PREVENT_MACRO_SUBSTITUTION ()
    {
        return ~0uLL;
    }
#endif
    BOOST_STATIC_CONSTANT(int, digits = sizeof(BOOST_LLT) * CHAR_BIT);
    BOOST_STATIC_CONSTANT(int, digits10 = (CHAR_BIT * sizeof (BOOST_LLT)) * 301L / 1000);
    BOOST_STATIC_CONSTANT(bool, is_signed = false);
    BOOST_STATIC_CONSTANT(bool, is_integer = true);
    BOOST_STATIC_CONSTANT(bool, is_exact = true);
    BOOST_STATIC_CONSTANT(int, radix = 2);
    static BOOST_ULLT
    epsilon() throw()
    {
        return 0;
    };
    static BOOST_ULLT
    round_error() throw()
    {
        return 0;
    };

    BOOST_STATIC_CONSTANT(int, min_exponent = 0);
    BOOST_STATIC_CONSTANT(int, min_exponent10 = 0);
    BOOST_STATIC_CONSTANT(int, max_exponent = 0);
    BOOST_STATIC_CONSTANT(int, max_exponent10 = 0);

    BOOST_STATIC_CONSTANT(bool, has_infinity = false);
    BOOST_STATIC_CONSTANT(bool, has_quiet_NaN = false);
    BOOST_STATIC_CONSTANT(bool, has_signaling_NaN = false);
    BOOST_STATIC_CONSTANT(bool, has_denorm = false);
    BOOST_STATIC_CONSTANT(bool, has_denorm_loss = false);
    static BOOST_ULLT
    infinity() throw()
    {
        return 0;
    };
    static BOOST_ULLT
    quiet_NaN() throw()
    {
        return 0;
    };
    static BOOST_ULLT
    signaling_NaN() throw()
    {
        return 0;
    };
    static BOOST_ULLT
    denorm_min() throw()
    {
        return 0;
    };

    BOOST_STATIC_CONSTANT(bool, is_iec559 = false);
    BOOST_STATIC_CONSTANT(bool, is_bounded = true);
    BOOST_STATIC_CONSTANT(bool, is_modulo = true);

    BOOST_STATIC_CONSTANT(bool, traps = false);
    BOOST_STATIC_CONSTANT(bool, tinyness_before = false);
    BOOST_STATIC_CONSTANT(float_round_style, round_style = round_toward_zero);

};
}
#endif

#endif
