xref: /illumos-gate/usr/src/lib/libm/common/LD/lgammal.c (revision ddc0e0b5)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
24  */
25 /*
26  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
27  * Use is subject to license terms.
28  */
29 
30 #pragma weak __lgammal = lgammal
31 
32 /*
33  * long double lgammal(long double x);
34  */
35 
36 #include "libm.h"
37 #include "longdouble.h"
38 
39 extern int signgam;
40 extern int signgaml;
41 
42 long double
lgammal(long double x)43 lgammal(long double x) {
44 	long double y = __k_lgammal(x, &signgaml);
45 
46 	signgam = signgaml;	/* SUSv3 requires the setting of signgam */
47 	return y;
48 }
49