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math_libm.h
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math_libm.h
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "SDL_config.h"
#include "SDL_stdinc.h"
/* Math routines from uClibc: http://www.uclibc.org */
#ifdef HAVE_ATAN
#define atan SDL_uclibc_atan
#else
#define atan SDL_atan
#endif
double atan(double x);
#ifndef HAVE_ATAN2
#define __ieee754_atan2 SDL_atan2
#endif
#ifdef HAVE_COPYSIGN
#define copysign SDL_uclibc_copysign
#else
#define copysign SDL_copysign
#endif
double copysign(double x, double y);
#ifdef HAVE_COS
#define cos SDL_uclibc_cos
#else
#define cos SDL_cos
#endif
double cos(double x);
#ifdef HAVE_FABS
#define fabs SDL_uclibc_fabs
#else
#define fabs SDL_fabs
#endif
double fabs(double x);
#ifdef HAVE_FLOOR
#define floor SDL_uclibc_floor
#else
#define floor SDL_floor
#endif
double floor(double x);
#ifndef HAVE_LOG
#define __ieee754_log SDL_log
#endif
#ifndef HAVE_POW
#define __ieee754_pow SDL_pow
#endif
#ifdef HAVE_SCALBN
#define scalbn SDL_uclibc_scalbn
#else
#define scalbn SDL_scalbn
#endif
double scalbn(double x, int n);
#ifdef HAVE_SIN
#define sin SDL_uclibc_sin
#else
#define sin SDL_sin
#endif
double sin(double x);
#ifndef HAVE_SQRT
#define __ieee754_sqrt SDL_sqrt
#endif
/* vi: set ts=4 sw=4 expandtab: */