# -*- coding: utf-8 -*-

# ####################################################################
#
# title                  :utils.pxd
# description            :Cython-powered wrapper of the sgp4lib library
# author                 :Benjamin Winkel
#
# ####################################################################
#  Copyright (C) 2014+ by Benjamin Winkel
#  bwinkel@mpifr.de
#  This file is part of cysgp4.
#
#  cysgp4 is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 3 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software Foundation,
#  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
#
# Note: cyaatm is a wrapper around sgp4lib library by Daniel Warner
#       (see package in cextern directory).
# ####################################################################

# cdef:

#     (double, double, double) ecef_from_geo(
#         double lon_rad, double lat_rad, double alt_km
#         ) nogil

cpdef int tle_checksum(str line)
