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/******************************************************************************
* Project: PROJ
* Purpose: Make C99 math functions available on C89 systems
* Author: Kristian Evers
*
******************************************************************************
* Copyright (c) 2018, Kristian Evers
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*****************************************************************************/
#ifndef PROJ_MATH_H
#define PROJ_MATH_H
#include <math.h>
#include <limits.h>
#ifdef __cplusplus
extern "C" {
#endif
#if !(defined(HAVE_C99_MATH) && HAVE_C99_MATH)
#ifndef PROJ_DLL
#ifdef PROJ_MSVC_DLL_EXPORT
#define PROJ_DLL __declspec(dllexport)
#elif defined(PROJ_MSVC_DLL_IMPORT)
#define PROJ_DLL __declspec(dllimport)
#elif defined(__GNUC__)
#define PROJ_DLL __attribute__ ((visibility("default")))
#else
#define PROJ_DLL
#endif
#endif
#ifdef PROJ_RENAME_SYMBOLS
#include "proj_symbol_rename.h"
#endif
#ifndef NAN
#ifdef _WIN32
#define NAN sqrt(-1.0)
#else
#define NAN 0.0/0.0
#endif
#endif
double pj_hypot(double x, double y);
double pj_log1p(double x);
double pj_asinh(double x);
double pj_round(double x);
long pj_lround(double x);
int PROJ_DLL pj_isnan(double x);
#define hypot pj_hypot
#define log1p pj_log1p
#define asinh pj_asinh
#define round pj_round
#define lround pj_lround
#ifdef isnan
#undef isnan
#endif
#define isnan pj_isnan
#endif /* !(defined(HAVE_C99_MATH) && HAVE_C99_MATH) */
#ifdef __cplusplus
}
#endif
#endif /* PROJ_MATH_H */
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