From 0ecb606cb6cf65de1d9fc8a919bceb4be476c602 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Thu, 12 Jul 2007 18:26:36 +0000 Subject: 2.5-18.1 --- math/w_log10.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 math/w_log10.c (limited to 'math/w_log10.c') diff --git a/math/w_log10.c b/math/w_log10.c new file mode 100644 index 0000000000..9425db3ddf --- /dev/null +++ b/math/w_log10.c @@ -0,0 +1,51 @@ +/* @(#)w_log10.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: w_log10.c,v 1.6 1995/05/10 20:49:35 jtc Exp $"; +#endif + +/* + * wrapper log10(X) + */ + +#include +#include "math_private.h" + + +#ifdef __STDC__ + double __log10(double x) /* wrapper log10 */ +#else + double __log10(x) /* wrapper log10 */ + double x; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_log10(x); +#else + double z; + z = __ieee754_log10(x); + if(_LIB_VERSION == _IEEE_ || __isnan(x)) return z; + if(x<=0.0) { + if(x==0.0) + return __kernel_standard(x,x,18); /* log10(0) */ + else + return __kernel_standard(x,x,19); /* log10(x<0) */ + } else + return z; +#endif +} +weak_alias (__log10, log10) +#ifdef NO_LONG_DOUBLE +strong_alias (__log10, __log10l) +weak_alias (__log10, log10l) +#endif -- cgit v1.2.3