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 __cprojf = cprojf
31
32#include "libm.h"
33#include "complex_wrapper.h"
34
35/* INDENT OFF */
36static const float zero = 0.0F;
37/* INDENT ON */
38
39fcomplex
40cprojf(fcomplex z) {
41	float x, y;
42	int ix, iy, hx, hy;
43
44	x = F_RE(z);
45	y = F_IM(z);
46	hx = THE_WORD(x);
47	hy = THE_WORD(y);
48	ix = hx & 0x7fffffff;
49	iy = hy & 0x7fffffff;
50	if (iy == 0x7f800000) {
51		F_RE(z) = fabsf(y);
52		F_IM(z) = hy >= 0 ? zero : -zero;
53	} else if (ix == 0x7f800000) {
54		F_RE(z) = fabsf(x);
55		F_IM(z) = hy >= 0 ? zero : -zero;
56	}
57	return (z);
58}
59