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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libm/src/s_cexpl.c	Lines:	0	2	0.0 %
Date:	2017-11-13	Branches:	0	0	0.0 %


/*	$OpenBSD: s_cexpl.c,v 1.2 2011/07/20 19:28:33 martynas Exp $	*/

/*
 * Copyright (c) 2008 Stephen L. Moshier <steve@moshier.net>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/*							cexpl()
 *
 *	Complex exponential function
 *
 *
 *
 * SYNOPSIS:
 *
 * long double complex cexpl();
 * long double complex z, w;
 *
 * w = cexpl( z );
 *
 *
 *
 * DESCRIPTION:
 *
 * Returns the exponential of the complex argument z
 * into the complex result w.
 *
 * If
 *     z = x + iy,
 *     r = exp(x),
 *
 * then
 *
 *     w = r cos y + i r sin y.
 *
 *
 * ACCURACY:
 *
 *                      Relative error:
 * arithmetic   domain     # trials      peak         rms
 *    DEC       -10,+10      8700       3.7e-17     1.1e-17
 *    IEEE      -10,+10     30000       3.0e-16     8.7e-17
 *
 */

#include <complex.h>
#include <math.h>

long double complex
cexpl(long double complex z)
{
	long double complex w;
	long double r;

	r = expl(creall(z));
	w = r * cosl(cimagl(z)) + (r * sinl(cimagl(z))) * I;
	return (w);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: s_cexpl.c,v 1.2 2011/07/20 19:28:33 martynas Exp $ */
2
3			/*
4			* Copyright (c) 2008 Stephen L. Moshier <steve@moshier.net>
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			/* cexpl()
20			*
21			* Complex exponential function
22			*
23			*
24			*
25			* SYNOPSIS:
26			*
27			* long double complex cexpl();
28			* long double complex z, w;
29			*
30			* w = cexpl( z );
31			*
32			*
33			*
34			* DESCRIPTION:
35			*
36			* Returns the exponential of the complex argument z
37			* into the complex result w.
38			*
39			* If
40			* z = x + iy,
41			* r = exp(x),
42			*
43			* then
44			*
45			* w = r cos y + i r sin y.
46			*
47			*
48			* ACCURACY:
49			*
50			* Relative error:
51			* arithmetic domain # trials peak rms
52			* DEC -10,+10 8700 3.7e-17 1.1e-17
53			* IEEE -10,+10 30000 3.0e-16 8.7e-17
54			*
55			*/
56
57			#include <complex.h>
58			#include <math.h>
59
60			long double complex
61			cexpl(long double complex z)
62			{
63			long double complex w;
64			long double r;
65
66			r = expl(creall(z));
67			w = r * cosl(cimagl(z)) + (r * sinl(cimagl(z))) * I;
68			return (w);
69			}