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58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
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/* w_exp10f.c -- float version of w_exp10.c.
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* Conversion to exp10 by Ulrich Drepper <drepper@cygnus.com>.
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*/
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/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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/*
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* wrapper expf10(x)
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*/
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#include "math.h"
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#include "math_private.h"
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#ifdef __STDC__
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static const float
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#else
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static float
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#endif
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o_threshold= 3.853183944498959298709e+01,
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u_threshold= -4.515449934959717928174e+01;
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#ifdef __STDC__
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float __exp10f(float x) /* wrapper exp10f */
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#else
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float __exp10f(x) /* wrapper exp10f */
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float x;
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#endif
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{
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#ifdef _IEEE_LIBM
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return __ieee754_exp10f(x);
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#else
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float z;
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z = __ieee754_exp10f(x);
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if(_LIB_VERSION == _IEEE_) return z;
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if(__finitef(x)) {
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if(x>o_threshold)
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/* exp overflow */
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return (float)__kernel_standard((double)x,(double)x,146);
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else if(x<u_threshold)
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/* exp underflow */
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return (float)__kernel_standard((double)x,(double)x,147);
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}
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return z;
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#endif
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}
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weak_alias (__exp10f, exp10f)
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strong_alias (__exp10f, __pow10f)
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weak_alias (__pow10f, pow10f)
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