s_significand.c revision 8870 
12116Sjkh/* @(#)s_signif.c 5.1 93/09/24 */
22116Sjkh/*
32116Sjkh * ====================================================
42116Sjkh * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
52116Sjkh *
62116Sjkh * Developed at SunPro, a Sun Microsystems, Inc. business.
72116Sjkh * Permission to use, copy, modify, and distribute this
88870Srgrimes * software is freely granted, provided that this notice
92116Sjkh * is preserved.
102116Sjkh * ====================================================
112116Sjkh */
122116Sjkh
132116Sjkh#ifndef lint
148870Srgrimesstatic char rcsid[] = "$Id: s_significand.c,v 1.1.1.1 1994/08/19 09:39:52 jkh Exp $";
152116Sjkh#endif
162116Sjkh
172116Sjkh/*
182116Sjkh * significand(x) computes just
192116Sjkh * 	scalb(x, (double) -ilogb(x)),
202116Sjkh * for exercising the fraction-part(F) IEEE 754-1985 test vector.
212116Sjkh */
222116Sjkh
232116Sjkh#include "math.h"
242116Sjkh#include "math_private.h"
252116Sjkh
262116Sjkh#ifdef __STDC__
272116Sjkh	double significand(double x)
282116Sjkh#else
292116Sjkh	double significand(x)
302116Sjkh	double x;
312116Sjkh#endif
322116Sjkh{
332116Sjkh	return __ieee754_scalb(x,(double) -ilogb(x));
342116Sjkh}
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