Mercurial > sdl-ios-xcode
diff src/libm/math.h @ 2756:a98604b691c8
Expanded the libm support and put it into a separate directory.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 15 Sep 2008 06:33:23 +0000 |
parents | |
children | 95fccd9bf262 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/libm/math.h Mon Sep 15 06:33:23 2008 +0000 @@ -0,0 +1,44 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2006 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Sam Lantinga + slouken@libsdl.org +*/ +#include "SDL_config.h" + +#ifdef HAVE_MATH_H +#include <math.h> +#else + +extern double __ieee754_log(double x); +extern double __ieee754_pow(double x, double y); +extern double __ieee754_sqrt(double x); + +#define log(x) __ieee754_log(x) +#define pow(x, y) __ieee754_pow(x, y) +#define sqrt(x) __ieee754_sqrt(x) + +extern double copysign(double x, double y); +extern double cos(double x); +extern double fabs(double x); +extern double scalbn(double x, int n); +extern double sin(double x); + +#endif /* HAVE_MATH_H */ + +/* vi: set ts=4 sw=4 expandtab: */