projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| f7eac6eb RM |
1 | /* @(#)s_signif.c 5.1 93/09/24 */ |
| 2 | /* | |
| 3 | * ==================================================== | |
| 4 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. | |
| 5 | * | |
| 6 | * Developed at SunPro, a Sun Microsystems, Inc. business. | |
| 7 | * Permission to use, copy, modify, and distribute this | |
| cccda09f | 8 | * software is freely granted, provided that this notice |
| f7eac6eb RM |
9 | * is preserved. |
| 10 | * ==================================================== | |
| 11 | */ | |
| 12 | ||
| 13 | #if defined(LIBM_SCCS) && !defined(lint) | |
| 14 | static char rcsid[] = "$NetBSD: s_significand.c,v 1.6 1995/05/10 20:48:11 jtc Exp $"; | |
| 15 | #endif | |
| 16 | ||
| 17 | /* | |
| 18 | * significand(x) computes just | |
| 19 | * scalb(x, (double) -ilogb(x)), | |
| 20 | * for exercising the fraction-part(F) IEEE 754-1985 test vector. | |
| 21 | */ | |
| 22 | ||
| 23 | #include "math.h" | |
| 24 | #include "math_private.h" | |
| 25 | ||
| 26 | #ifdef __STDC__ | |
| 27 | double __significand(double x) | |
| 28 | #else | |
| 29 | double __significand(x) | |
| 30 | double x; | |
| 31 | #endif | |
| 32 | { | |
| 33 | return __ieee754_scalb(x,(double) -ilogb(x)); | |
| 34 | } | |
| 35 | weak_alias (__significand, significand) | |
| cccda09f UD |
36 | #ifdef NO_LONG_DOUBLE |
| 37 | strong_alias (__significand, __significandl) | |
| 38 | weak_alias (__significand, significandl) | |
| 39 | #endif |