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glibc/math/s_significand.c
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| /* @(#)s_signif.c 5.1 93/09/24 */ | |
| /* | |
| * ==================================================== | |
| * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. | |
| * | |
| * Developed at SunPro, a Sun Microsystems, Inc. business. | |
| * Permission to use, copy, modify, and distribute this | |
| * software is freely granted, provided that this notice | |
| * is preserved. | |
| * ==================================================== | |
| */ | |
| #if defined(LIBM_SCCS) && !defined(lint) | |
| static char rcsid[] = "$NetBSD: s_significand.c,v 1.6 1995/05/10 20:48:11 jtc Exp $"; | |
| #endif | |
| /* | |
| * significand(x) computes just | |
| * scalb(x, (double) -ilogb(x)), | |
| * for exercising the fraction-part(F) IEEE 754-1985 test vector. | |
| */ | |
| #include <math.h> | |
| #include <math_private.h> | |
| double __significand(double x) | |
| { | |
| return __ieee754_scalb(x,(double) -__ilogb(x)); | |
| } | |
| weak_alias (__significand, significand) | |
| #ifdef NO_LONG_DOUBLE | |
| strong_alias (__significand, __significandl) | |
| weak_alias (__significand, significandl) | |
| #endif |