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Fixed bug 3768 - provide a quick copysign() solution for watcom 

Ozkan Sezer

The following patch provides a quick copysign solution for Watcom/x86
Sam Lantinga 2017-08-21 16:30:24 -07:00
parent 9b3ec6a570
commit fcf83e7908
1 changed files with 6 additions and 0 deletions
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6
src/stdlib/SDL_stdlib.c
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@ -109,6 +109,12 @@ SDL_copysign(double x, double y)
return copysign(x, y); return copysign(x, y);
#elif defined(HAVE__COPYSIGN) #elif defined(HAVE__COPYSIGN)
return _copysign(x, y); return _copysign(x, y);
#elif defined(__WATCOMC__) && defined(__386__)
/* this is nasty as hell, but it works.. */
unsigned int *xi = (unsigned int *) &x,
*yi = (unsigned int *) &y;
xi[1] = (yi[1] & 0x80000000) | (xi[1] & 0x7fffffff);
return x;
#else #else
return SDL_uclibc_copysign(x, y); return SDL_uclibc_copysign(x, y);
#endif /* HAVE_COPYSIGN */ #endif /* HAVE_COPYSIGN */