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/* w_gammaf.c -- float version of w_gamma.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.
* ====================================================
*/
#include "math.h"
#include "fdlibm.h"
#if !defined(_IEEE_LIBM) || !defined(HAVE_ALIAS_ATTRIBUTE)
#ifdef __STDC__
float tgammaf(float x)
#else
float tgammaf(x)
float x;
#endif
{
float y;
y = __ieee754_tgammaf(x);
#ifdef _IEEE_LIBM
return y;
#else
if(_LIB_VERSION == _IEEE_) return y;
if(!finitef(y)) {
if(x < 0.0f && floorf(x)==x)
errno = EDOM;
else if (finitef(x))
errno = ERANGE;
}
return y;
#endif
}
#endif
#ifdef _DOUBLE_IS_32BITS
#ifdef __STDC__
double tgamma(double x)
#else
double tgamma(x)
double x;
#endif
{
return (double) tgammaf((float) x);
}
#endif /* defined(_DOUBLE_IS_32BITS) */
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