/* Copyright (C) 2002 by Red Hat, Incorporated. All rights reserved. * * Permission to use, copy, modify, and distribute this software * is freely granted, provided that this notice is preserved. */ #include "fdlibm.h" #ifndef _DOUBLE_IS_32BITS #ifdef __STDC__ double fdim(double x, double y) #else double fdim(x,y) double x; double y; #endif { int c = __fpclassifyd(x); if (c == FP_NAN || c == FP_INFINITE) return HUGE_VAL; return x > y ? x - y : 0.0; } #endif /* _DOUBLE_IS_32BITS */