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glibc/math/w_exp10.c
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/* @(#)w_exp10.c | |
* Conversion to exp10 by Ulrich Drepper <drepper@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. | |
* ==================================================== | |
*/ | |
/* | |
* wrapper exp10(x) | |
*/ | |
#include "math.h" | |
#include "math_private.h" | |
#ifdef __STDC__ | |
static const double | |
#else | |
static double | |
#endif | |
o_threshold= 3.0825471555991674389672e+02, | |
u_threshold= -3.2360724533877978485251e+02; | |
#ifdef __STDC__ | |
double __exp10(double x) /* wrapper exp10 */ | |
#else | |
double __exp10(x) /* wrapper exp10 */ | |
double x; | |
#endif | |
{ | |
#ifdef _IEEE_LIBM | |
return __ieee754_exp10(x); | |
#else | |
double z; | |
z = __ieee754_exp10(x); | |
if(_LIB_VERSION == _IEEE_) return z; | |
if(__finite(x)) { | |
if(x>o_threshold) | |
return __kernel_standard(x,x,46); /* exp10 overflow */ | |
else if(x<u_threshold) | |
return __kernel_standard(x,x,47); /* exp10 underflow */ | |
} | |
return z; | |
#endif | |
} | |
weak_alias (__exp10, exp10) | |
strong_alias (__exp10, __pow10) | |
weak_alias (__pow10, pow10) | |
#ifdef NO_LONG_DOUBLE | |
strong_alias (__exp10, __exp10l) | |
weak_alias (__exp10, exp10l) | |
strong_alias (__exp10l, __pow10l) | |
weak_alias (__pow10l, pow10l) | |
#endif |