Retro68/gcc/newlib/libm/mathfp/er_gamma.c

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/* @(#)er_gamma.c 5.1 93/09/24 */
/*
* ====================================================
* 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.
* ====================================================
*
*/
/* gamma_r(x, signgamp)
* Reentrant version of the logarithm of the Gamma function
* with user provide pointer for the sign of Gamma(x).
*
* Method: See lgamma_r
*/
#include "fdlibm.h"
#ifdef __STDC__
double gamma_r(double x, int *signgamp)
#else
double gamma_r(x,signgamp)
double x; int *signgamp;
#endif
{
return exp (lgamma_r(x,signgamp));
}
double gamma(double x)
{
return gamma_r(x, &(_REENT_SIGNGAM(_REENT)));
}