s_significandf.c

来自「基于组件方式开发操作系统的OSKIT源代码」· C语言 代码 · 共 32 行

/* s_significandf.c -- float version of s_significand.c.
 * Conversion to float by Ian Lance Taylor, Cygnus Support, [e-mail].
 */

/*
 * ====================================================
 * 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_significandf.c,v 1.4 1997/02/22 15:11:43 peter Exp $";
#endif

#include "math.h"
#include "math_private.h"

#ifdef __STDC__
	float significandf(float x)
#else
	float significandf(x)
	float x;
#endif
{
	return __ieee754_scalbf(x,(float) -ilogbf(x));
}