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48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
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/* @(#)wr_gamma.c 5.1 93/09/24 */
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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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#if defined(LIBM_SCCS) && !defined(lint)
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static char rcsid[] = "$NetBSD: w_gamma_r.c,v 1.7 1995/11/20 22:06:45 jtc Exp $";
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#endif
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/*
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* wrapper double gamma_r(double x, int *signgamp)
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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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double __gamma_r(double x, int *signgamp) /* wrapper lgamma_r */
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#else
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double __gamma_r(x,signgamp) /* wrapper lgamma_r */
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double x; int *signgamp;
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#endif
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{
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#ifdef _IEEE_LIBM
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return __ieee754_lgamma_r(x,signgamp);
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#else
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double y;
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y = __ieee754_lgamma_r(x,signgamp);
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if(_LIB_VERSION == _IEEE_) return y;
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if(!__finite(y)&&__finite(x)) {
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if(__floor(x)==x&&x<=0.0)
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return __kernel_standard(x,x,41); /* gamma pole */
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else
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return __kernel_standard(x,x,40); /* gamma overflow */
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} else
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return y;
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#endif
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}
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weak_alias (__gamma_r, gamma_r)
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