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