1/* @(#)wr_gamma.c 5.1 93/09/24 */
2/*
3 * ====================================================
4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
5 *
6 * Developed at SunPro, a Sun Microsystems, Inc. business.
7 * Permission to use, copy, modify, and distribute this
8 * software is freely granted, provided that this notice
9 * is preserved.
10 * ====================================================
11 */
12
13#include <sys/cdefs.h>
14#if defined(LIBM_SCCS) && !defined(lint)
15__RCSID("$NetBSD: w_gamma_r.c,v 1.10 2001/01/06 00:15:00 christos Exp $");
16#endif
17
18/*
19 * wrapper double gamma_r(double x, int *signgamp)
20 */
21
22#include "math.h"
23#include "math_private.h"
24
25double
26gamma_r(double x, int *signgamp) /* wrapper lgamma_r */
27{
28#ifdef _IEEE_LIBM
29	return __ieee754_lgamma_r(x,signgamp);
30#else
31        double y;
32        y = __ieee754_lgamma_r(x,signgamp);
33        if(_LIB_VERSION == _IEEE_) return y;
34        if(!finite(y)&&finite(x)) {
35            if(floor(x)==x&&x<=0.0)
36                return __kernel_standard(x,x,41); /* gamma pole */
37            else
38                return __kernel_standard(x,x,40); /* gamma overflow */
39        } else
40            return y;
41#endif
42}
43