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[/] [or1k_old/] [trunk/] [linux/] [uClibc/] [libm/] [w_log10.c] - Rev 1325
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/* @(#)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 "math.h" #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 }
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