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/* w_log10f.c -- float version of w_log10.c.
* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
*/
/*
* ====================================================
* 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.
* ====================================================
*/
#ifndef lint
static char rcsid[] = "$FreeBSD$";
#endif
/*
* wrapper log10f(X)
*/
#include "math.h"
#include "math_private.h"
float
log10f(float x) /* wrapper log10f */
{
#ifdef _IEEE_LIBM
return __ieee754_log10f(x);
#else
float z;
z = __ieee754_log10f(x);
if(_LIB_VERSION == _IEEE_ || isnanf(x)) return z;
if(x<=(float)0.0) {
if(x==(float)0.0)
/* log10(0) */
return (float)__kernel_standard((double)x,(double)x,118);
else
/* log10(x<0) */
return (float)__kernel_standard((double)x,(double)x,119);
} else
return z;
#endif
}
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