src/libm/math.h
changeset 2756 a98604b691c8
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2755:2a3ec308d995 2756:a98604b691c8
       
     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: */