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38 lines
854 B
C
38 lines
854 B
C
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/* @(#)er_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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*/
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/* gamma_r(x, signgamp)
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* Reentrant version of the logarithm of the Gamma function
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* with user provide pointer for the sign of Gamma(x).
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*
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* Method: See lgamma_r
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*/
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#include "fdlibm.h"
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#ifdef __STDC__
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double gamma_r(double x, int *signgamp)
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#else
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double gamma_r(x,signgamp)
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double x; int *signgamp;
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#endif
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{
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return exp (lgamma_r(x,signgamp));
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}
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double gamma(double x)
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{
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return gamma_r(x, &(_REENT_SIGNGAM(_REENT)));
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}
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