OpenLibm/src/s_significand.c

30 lines
816 B
C

/* @(#)s_signif.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.
* ====================================================
*/
#include "cdefs-compat.h"
//__FBSDID("$FreeBSD: src/lib/msun/src/s_significand.c,v 1.10 2008/02/22 02:30:35 das Exp $");
/*
* significand(x) computes just
* scalb(x, (double) -ilogb(x)),
* for exercising the fraction-part(F) IEEE 754-1985 test vector.
*/
#include "openlibm.h"
#include "math_private.h"
DLLEXPORT double
significand(double x)
{
return __ieee754_scalb(x,(double) -ilogb(x));
}