e_gamma_r.c

来自「基于组件方式开发操作系统的OSKIT源代码」· C语言 代码 · 共 36 行

/* @(#)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.
 * ====================================================
 */

#ifndef lint
static char rcsid[] = "$\Id: e_gamma_r.c,v 1.2 1995/05/30 05:48:13 rgrimes Exp $";
#endif

/* __ieee754_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 __ieee754_lgamma_r
 */

#include "math.h"
#include "math_private.h"

#ifdef __STDC__
	double __ieee754_gamma_r(double x, int *signgamp)
#else
	double __ieee754_gamma_r(x,signgamp)
	double x; int *signgamp;
#endif
{
	return __ieee754_lgamma_r(x,signgamp);
}