1 /* $OpenBSD: s_cprojl.c,v 1.1 2011/07/08 19:25:31 martynas Exp $ */
2
3 /*
4 * Copyright (c) 2011 Martynas Venckus <martynas@openbsd.org>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include <complex.h>
20 #include <math.h>
21
22 long double complex
cprojl(long double complex z)23 cprojl(long double complex z)
24 {
25 long double complex res;
26
27 if (isinf(__real__ z) || isinf(__imag__ z)) {
28 __real__ res = INFINITY;
29 __imag__ res = copysignl(0.0, __imag__ z);
30 } else {
31 res = z;
32 }
33
34 return res;
35 }
36