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