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/* w_gammaf.c -- float version of w_gamma.c.
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 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@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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#ifndef lint
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static char rcsid[] = "$\Id: w_gammaf.c,v 1.2 1995/05/30 05:51:10 rgrimes Exp $";
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#endif
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#include "math.h"
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#include "math_private.h"
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extern int signgam;
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#ifdef __STDC__
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        float gammaf(float x)
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#else
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        float gammaf(x)
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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_gammaf_r(x,&signgam);
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#else
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        float y;
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        y = __ieee754_gammaf_r(x,&signgam);
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        if(_LIB_VERSION == _IEEE_) return y;
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        if(!finitef(y)&&finitef(x)) {
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            if(floorf(x)==x&&x<=(float)0.0)
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                /* gammaf pole */
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                return (float)__kernel_standard((double)x,(double)x,141);
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            else
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                /* gammaf overflow */
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                return (float)__kernel_standard((double)x,(double)x,140);
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        } else
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            return y;
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#endif
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}