1 /* @(#)w_log10.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 * ====================================================
14 static char rcsid[] = "$FreeBSD: src/lib/msun/src/w_log10.c,v 1.5 1999/08/28 00:07:06 peter Exp $";
22 #include "math_private.h"
26 double log10(double x) /* wrapper log10 */
28 double log10(x) /* wrapper log10 */
33 return __ieee754_log10(x);
36 z = __ieee754_log10(x);
37 if(_LIB_VERSION == _IEEE_ || isnan(x)) return z;
40 return __kernel_standard(x,x,18); /* log10(0) */
42 return __kernel_standard(x,x,19); /* log10(x<0) */