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Fixed Visual C++ release build for Visual C++ 2005

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* Some math functions become intrinsic in release mode, so we need to
  convert all the math functions into SDL math functions, like we did
  with the stdlib functions.
* Constant initializers of 8-bit values become calls to memset() in
  release mode, but memset() itself is an intrinsic when explicitly
  called.  So we'll just explicitly call memset() in those cases.

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%403474
This commit is contained in:
Sam Lantinga 2009-01-10 18:32:24 +00:00
parent 44fa7675c8
commit e32916c7f0
9 changed files with 227 additions and 43 deletions
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64
src/libm/math.h
View file

@ -20,34 +20,56 @@
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifdef HAVE_MATH_H
#define _USE_MATH_DEFINES
#include <math.h>
#else
#include "SDL_stdinc.h"
/* Math routines from uClibc: http://www.uclibc.org */
#define M_PI 3.14159265358979323846264338327950288 /* pi */
#ifdef HAVE_COPYSIGN
#define copysign SDL_uclibc_copysign
#else
#define copysign SDL_copysign
#endif
extern double __ieee754_log(double x);
extern double __ieee754_pow(double x, double y);
extern double __ieee754_sqrt(double x);
#ifdef HAVE_COS
#define cos SDL_uclibc_cos
#else
#define cos SDL_cos
#endif
#define log(x) __ieee754_log(x)
#define pow(x, y) __ieee754_pow(x, y)
#define sqrt(x) __ieee754_sqrt(x)
#ifdef HAVE_FABS
#define fabs SDL_uclibc_fabs
#else
#define fabs SDL_fabs
#endif
extern double copysign(double x, double y);
extern double cos(double x);
extern double fabs(double x);
extern double floor(double x);
extern double scalbn(double x, int n);
extern double sin(double x);
#ifdef HAVE_FLOOR
#define floor SDL_uclibc_floor
#else
#define floor SDL_floor
#endif
#define sinf(x) (float)sin((double)x)
#define cosf(x) (float)cos((double)x)
#ifndef HAVE_LOG
#define __ieee754_log SDL_log
#endif
#endif /* HAVE_MATH_H */
#ifndef HAVE_POW
#define __ieee754_pow SDL_pow
#endif
#ifdef HAVE_SCALBN
#define scalbn SDL_uclibc_scalbn
#else
#define scalbn SDL_scalbn
#endif
#ifdef HAVE_SIN
#define sin SDL_uclibc_sin
#else
#define sin SDL_sin
#endif
#ifndef HAVE_SQRT
#define __ieee754_sqrt SDL_sqrt
#endif
/* vi: set ts=4 sw=4 expandtab: */