/* @(#)s_fabs.c 5.1 93/09/24 */ /* * ==================================================== * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. * * Developed at SunPro, a Sun Microsystems, Inc. business. * Permission to use, copy, modify, and distribute this * software is freely granted, provided that this notice * is preserved. * ==================================================== */ /* * fabs(x) returns the absolute value of x. */ #include #ifdef __STDC__ static const double one = 1.0; #else static double one = 1.0; #endif #ifdef __STDC__ double fabs(double x) #else double fabs(x) double x; #endif { *((((*(int*)&one)>>29)^1)+(int*)&x) &= 0x7fffffff; return x; }