source: trunk/sys/libm/s_significand.c @ 1

Last change on this file since 1 was 1, checked in by alain, 5 years ago

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1
2/* @(#)s_significand.c 5.1 93/09/24 */
3/*
4 * ====================================================
5 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
6 *
7 * Developed at SunPro, a Sun Microsystems, Inc. business.
8 * Permission to use, copy, modify, and distribute this
9 * software is freely granted, provided that this notice
10 * is preserved.
11 * ====================================================
12 */
13
14/*
15 * significand(x) computes just
16 *      scalb(x, (double) -ilogb(x)),
17 * for exercising the fraction-part(F) IEEE 754-1985 test vector.
18 */
19
20#include <libm/fdlibm.h>
21
22#ifdef __STDC__
23        double significand(double x)
24#else
25        double significand(x)
26        double x;
27#endif
28{
29        return __ieee754_scalb(x,(double) -ilogb(x));
30}
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