mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-14 23:30:06 +00:00
40 lines
1.0 KiB
C
40 lines
1.0 KiB
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.
|
|
* ====================================================
|
|
*/
|
|
|
|
#if defined(LIBM_SCCS) && !defined(lint)
|
|
static char rcsid[] = "$NetBSD: s_significand.c,v 1.6 1995/05/10 20:48:11 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"
|
|
#include "math_private.h"
|
|
|
|
#ifdef __STDC__
|
|
double __significand(double x)
|
|
#else
|
|
double __significand(x)
|
|
double x;
|
|
#endif
|
|
{
|
|
return __ieee754_scalb(x,(double) -ilogb(x));
|
|
}
|
|
weak_alias (__significand, significand)
|
|
#ifdef NO_LONG_DOUBLE
|
|
strong_alias (__significand, __significandl)
|
|
weak_alias (__significand, significandl)
|
|
#endif
|