src/libm/math.h
author Sam Lantinga <slouken@libsdl.org>
Mon, 15 Sep 2008 06:33:23 +0000
changeset 2756 a98604b691c8
child 2759 95fccd9bf262
permissions -rw-r--r--
Expanded the libm support and put it into a separate directory.
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2006 Sam Lantinga
     4 
     5     This library is free software; you can redistribute it and/or
     6     modify it under the terms of the GNU Lesser General Public
     7     License as published by the Free Software Foundation; either
     8     version 2.1 of the License, or (at your option) any later version.
     9 
    10     This library is distributed in the hope that it will be useful,
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13     Lesser General Public License for more details.
    14 
    15     You should have received a copy of the GNU Lesser General Public
    16     License along with this library; if not, write to the Free Software
    17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
    18 
    19     Sam Lantinga
    20     slouken@libsdl.org
    21 */
    22 #include "SDL_config.h"
    23 
    24 #ifdef HAVE_MATH_H
    25 #include <math.h>
    26 #else
    27 
    28 extern double __ieee754_log(double x);
    29 extern double __ieee754_pow(double x, double y);
    30 extern double __ieee754_sqrt(double x);
    31 
    32 #define log(x)      __ieee754_log(x)
    33 #define pow(x, y)   __ieee754_pow(x, y)
    34 #define sqrt(x)     __ieee754_sqrt(x)
    35 
    36 extern double copysign(double x, double y);
    37 extern double cos(double x);
    38 extern double fabs(double x);
    39 extern double scalbn(double x, int n);
    40 extern double sin(double x);
    41 
    42 #endif /* HAVE_MATH_H */
    43 
    44 /* vi: set ts=4 sw=4 expandtab: */