s_significand.c revision 97409
1/* @(#)s_signif.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 14static char rcsid[] = "$FreeBSD: head/lib/msun/src/s_significand.c 97409 2002-05-28 17:51:46Z alfred $"; 15#endif 16 17/* 18 * significand(x) computes just 19 * scalb(x, (double) -ilogb(x)), 20 * for exercising the fraction-part(F) IEEE 754-1985 test vector. 21 */ 22 23#include "math.h" 24#include "math_private.h" 25 26 double __generic_significand(double x) 27{ 28 return __ieee754_scalb(x,(double) -ilogb(x)); 29} 30