986
|
1 |
|
|
2 |
/* @(#)s_significand.c 1.3 95/01/18 */
|
|
3 |
/*
|
|
4 |
* ====================================================
|
|
5 |
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
|
6 |
*
|
|
7 |
* Developed at SunSoft, 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 "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 |
}
|