1
2 /* @(#)s_signif.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 "fdlibm.h"
21
22 #ifdef _NEED_FLOAT64
23
24 __float64
significand64(__float64 x)25 significand64(__float64 x)
26 {
27 return scalbn64(x, -ilogb64(x));
28 }
29
30 _MATH_ALIAS_d_d(significand)
31
32 #endif /* _NEED_FLOAT64 */
33
