[unix-history] / lib / msun / src / s_significand.c

/* @(#)s_significand.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.
 * ====================================================
 */

#ifndef lint
static char rcsid[] = "$Id: s_significand.c,v 1.3 1994/02/18 02:26:57 jtc Exp $";
#endif

/*
 * significand(x) computes just
 * 	scalb(x, (double) -ilogb(x)),
 * for exercising the fraction-part(F) IEEE 754-1985 test vector.
 */

#include "math.h"

#ifdef __STDC__
	double significand(double x)
#else
	double significand(x)
	double x;
#endif
{
	return __ieee754_scalb(x,(double) -ilogb(x));
}
Commit	Line	Data
4acf9396 GCI	1	/* @(#)s_significand.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[] = "$Id: s_significand.c,v 1.3 1994/02/18 02:26:57 jtc 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
	25	#ifdef __STDC__
	26	double significand(double x)
	27	#else
	28	double significand(x)
	29	double x;
	30	#endif
	31	{
	32	return __ieee754_scalb(x,(double) -ilogb(x));
	33	}