1 /* @(#)w_log.c 5.1 93/09/24 */
3 * ====================================================
4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
6 * Developed at SunPro, a Sun Microsystems, Inc. business.
7 * Permission to use, copy, modify, and distribute this
8 * software is freely granted, provided that this notice
10 * ====================================================
12 * $FreeBSD: src/lib/msun/src/w_log.c,v 1.5 1999/08/28 00:07:05 peter Exp $
13 * $DragonFly: src/lib/msun/src/Attic/w_log.c,v 1.2 2003/06/17 04:26:53 dillon Exp $
21 #include "math_private.h"
25 double log(double x) /* wrapper log */
27 double log(x) /* wrapper log */
32 return __ieee754_log(x);
36 if(_LIB_VERSION == _IEEE_ || isnan(x) || x > 0.0) return z;
38 return __kernel_standard(x,x,16); /* log(0) */
40 return __kernel_standard(x,x,17); /* log(x<0) */