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: src/lib/msun/src/s_significand.c,v 1.9 2003/07/23 04:53:47 peter Exp $"; 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 26double 27significand(double x) 28{ 29 return __ieee754_scalb(x,(double) -ilogb(x)); 30} 31