xref: /illumos-gate/usr/src/lib/libm/common/LD/atan2pil.c (revision ddc0e0b5)
1*25c28e83SPiotr Jasiukajtis /*
2*25c28e83SPiotr Jasiukajtis  * CDDL HEADER START
3*25c28e83SPiotr Jasiukajtis  *
4*25c28e83SPiotr Jasiukajtis  * The contents of this file are subject to the terms of the
5*25c28e83SPiotr Jasiukajtis  * Common Development and Distribution License (the "License").
6*25c28e83SPiotr Jasiukajtis  * You may not use this file except in compliance with the License.
7*25c28e83SPiotr Jasiukajtis  *
8*25c28e83SPiotr Jasiukajtis  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9*25c28e83SPiotr Jasiukajtis  * or http://www.opensolaris.org/os/licensing.
10*25c28e83SPiotr Jasiukajtis  * See the License for the specific language governing permissions
11*25c28e83SPiotr Jasiukajtis  * and limitations under the License.
12*25c28e83SPiotr Jasiukajtis  *
13*25c28e83SPiotr Jasiukajtis  * When distributing Covered Code, include this CDDL HEADER in each
14*25c28e83SPiotr Jasiukajtis  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15*25c28e83SPiotr Jasiukajtis  * If applicable, add the following below this CDDL HEADER, with the
16*25c28e83SPiotr Jasiukajtis  * fields enclosed by brackets "[]" replaced with your own identifying
17*25c28e83SPiotr Jasiukajtis  * information: Portions Copyright [yyyy] [name of copyright owner]
18*25c28e83SPiotr Jasiukajtis  *
19*25c28e83SPiotr Jasiukajtis  * CDDL HEADER END
20*25c28e83SPiotr Jasiukajtis  */
21*25c28e83SPiotr Jasiukajtis 
22*25c28e83SPiotr Jasiukajtis /*
23*25c28e83SPiotr Jasiukajtis  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
24*25c28e83SPiotr Jasiukajtis  */
25*25c28e83SPiotr Jasiukajtis /*
26*25c28e83SPiotr Jasiukajtis  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
27*25c28e83SPiotr Jasiukajtis  * Use is subject to license terms.
28*25c28e83SPiotr Jasiukajtis  */
29*25c28e83SPiotr Jasiukajtis 
30*25c28e83SPiotr Jasiukajtis #include "libm.h"
31*25c28e83SPiotr Jasiukajtis 
32*25c28e83SPiotr Jasiukajtis #define GENERIC	long double
33*25c28e83SPiotr Jasiukajtis #define ATAN2PI	atan2pil
34*25c28e83SPiotr Jasiukajtis #define ATAN2	atan2l
35*25c28e83SPiotr Jasiukajtis 
36*25c28e83SPiotr Jasiukajtis /* ATAN2PI(y,x)
37*25c28e83SPiotr Jasiukajtis  *
38*25c28e83SPiotr Jasiukajtis  *	ATAN2PI(y,x) = ATAN2(y,x)/pi
39*25c28e83SPiotr Jasiukajtis  */
40*25c28e83SPiotr Jasiukajtis 
41*25c28e83SPiotr Jasiukajtis extern GENERIC 	ATAN2();
42*25c28e83SPiotr Jasiukajtis 
43*25c28e83SPiotr Jasiukajtis static GENERIC
44*25c28e83SPiotr Jasiukajtis invpi = (GENERIC) 3.183098861837906715377675267450287240689e-0001L;
45*25c28e83SPiotr Jasiukajtis 
ATAN2PI(y,x)46*25c28e83SPiotr Jasiukajtis GENERIC ATAN2PI(y,x)
47*25c28e83SPiotr Jasiukajtis GENERIC y,x;
48*25c28e83SPiotr Jasiukajtis {
49*25c28e83SPiotr Jasiukajtis 	return ATAN2(y,x)*invpi;
50*25c28e83SPiotr Jasiukajtis }
51