1 /* @(#)s_fabs.c 5.1 93/09/24 */ 2 /* 3 * ==================================================== 4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 5 * 6 * Developed at SunPro, a Sun Microsystems, Inc. business. 7 * Permission to use, copy, modify, and distribute this 8 * software is freely granted, provided that this notice 9 * is preserved. 10 * ==================================================== 11 */ 12 13 #ifndef lint 14 static char rcsid[] = "$FreeBSD$"; 15 #endif 16 17 /* 18 * fabs(x) returns the absolute value of x. 19 */ 20 21 #include "math.h" 22 #include "math_private.h" 23 24 #ifdef __STDC__ 25 double fabs(double x) 26 #else 27 double fabs(x) 28 double x; 29 #endif 30 { 31 u_int32_t high; 32 GET_HIGH_WORD(high,x); 33 SET_HIGH_WORD(x,high&0x7fffffff); 34 return x; 35 } 36