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GCC Code Coverage Report

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


/*	$OpenBSD: s_cexp.c,v 1.7 2016/09/12 19:47:02 guenther 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.
 */

/*							cexp()
 *
 *	Complex exponential function
 *
 *
 *
 * SYNOPSIS:
 *
 * double complex cexp ();
 * double complex z, w;
 *
 * w = cexp (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 <float.h>
#include <math.h>

double complex
cexp(double complex z)
{
	double complex w;
	double r, x, y;

	x = creal (z);
	y = cimag (z);
	r = exp (x);
	w = r * cos (y) + r * sin (y) * I;
	return (w);
}
DEF_STD(cexp);
LDBL_MAYBE_UNUSED_CLONE(cexp);


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: s_cexp.c,v 1.7 2016/09/12 19:47:02 guenther Exp $ */
2			/*
3			* Copyright (c) 2008 Stephen L. Moshier <steve@moshier.net>
4			*
5			* Permission to use, copy, modify, and distribute this software for any
6			* purpose with or without fee is hereby granted, provided that the above
7			* copyright notice and this permission notice appear in all copies.
8			*
9			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13			* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14			* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15			* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16			*/
17
18			/* cexp()
19			*
20			* Complex exponential function
21			*
22			*
23			*
24			* SYNOPSIS:
25			*
26			* double complex cexp ();
27			* double complex z, w;
28			*
29			* w = cexp (z);
30			*
31			*
32			*
33			* DESCRIPTION:
34			*
35			* Returns the exponential of the complex argument z
36			* into the complex result w.
37			*
38			* If
39			* z = x + iy,
40			* r = exp(x),
41			*
42			* then
43			*
44			* w = r cos y + i r sin y.
45			*
46			*
47			* ACCURACY:
48			*
49			* Relative error:
50			* arithmetic domain # trials peak rms
51			* DEC -10,+10 8700 3.7e-17 1.1e-17
52			* IEEE -10,+10 30000 3.0e-16 8.7e-17
53			*
54			*/
55
56			#include <complex.h>
57			#include <float.h>
58			#include <math.h>
59
60			double complex
61			cexp(double complex z)
62			{
63			double complex w;
64			double r, x, y;
65
66			x = creal (z);
67			y = cimag (z);
68			r = exp (x);
69			w = r * cos (y) + r * sin (y) * I;
70			return (w);
71			}
72			DEF_STD(cexp);
73			LDBL_MAYBE_UNUSED_CLONE(cexp);