1/*-
2 * Copyright (c) 2008 David Schultz <das@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27/*
28 * Tests for conj{,f,l}()
29 */
30
31#include <sys/cdefs.h>
32#include <complex.h>
33#include <fenv.h>
34#include <math.h>
35#include <stdio.h>
36
37#include "test-utils.h"
38
39#pragma	STDC CX_LIMITED_RANGE	OFF
40
41/* Make sure gcc doesn't use builtin versions of these or honor __pure2. */
42static float complex (*libconjf)(float complex) = conjf;
43static double complex (*libconj)(double complex) = conj;
44static long double complex (*libconjl)(long double complex) = conjl;
45static float (*libcrealf)(float complex) = crealf;
46static double (*libcreal)(double complex) = creal;
47static long double (*libcreall)(long double complex) = creall;
48static float (*libcimagf)(float complex) = cimagf;
49static double (*libcimag)(double complex) = cimag;
50static long double (*libcimagl)(long double complex) = cimagl;
51
52static const double tests[] = {
53	/* a +  bI */
54	0.0,	0.0,
55	0.0,	1.0,
56	1.0,	0.0,
57	-1.0,	0.0,
58	1.0,	-0.0,
59	0.0,	-1.0,
60	2.0,	4.0,
61	0.0,	INFINITY,
62	0.0,	-INFINITY,
63	INFINITY, 0.0,
64	NAN,	1.0,
65	1.0,	NAN,
66	NAN,	NAN,
67	-INFINITY, INFINITY,
68};
69
70ATF_TC_WITHOUT_HEAD(main);
71ATF_TC_BODY(main, tc)
72{
73	static const int ntests = sizeof(tests) / sizeof(tests[0]) / 2;
74	complex float in;
75	complex long double expected;
76	int i;
77
78	for (i = 0; i < ntests; i++) {
79		__real__ expected = __real__ in = tests[2 * i];
80		__imag__ in = tests[2 * i + 1];
81		__imag__ expected = -cimag(in);
82
83		ATF_REQUIRE(fpequal_cs(libcrealf(in), __real__ in, true));
84		ATF_REQUIRE(fpequal_cs(libcreal(in), __real__ in, true));
85		ATF_REQUIRE(fpequal_cs(libcreall(in), __real__ in, true));
86		ATF_REQUIRE(fpequal_cs(libcimagf(in), __imag__ in, true));
87		ATF_REQUIRE(fpequal_cs(libcimag(in), __imag__ in, true));
88		ATF_REQUIRE(fpequal_cs(libcimagl(in), __imag__ in, true));
89
90		ATF_REQUIRE_EQ(0, feclearexcept(FE_ALL_EXCEPT));
91		ATF_REQUIRE_MSG(
92		    cfpequal(libconjf(in), expected),
93		    "conjf(%#.2g + %#.2gI): wrong value", creal(in), cimag(in)
94		);
95		ATF_REQUIRE_EQ_MSG(0, fetestexcept(FE_ALL_EXCEPT),
96		    "conj(%#.2g + %#.2gI): threw an exception: %#x", creal(in),
97		    cimag(in), fetestexcept(FE_ALL_EXCEPT));
98
99		ATF_REQUIRE_EQ(0, feclearexcept(FE_ALL_EXCEPT));
100		ATF_REQUIRE_MSG(cfpequal(libconj(in), expected),
101		    "conj(%#.2g + %#.2gI): wrong value", creal(in), cimag(in));
102		ATF_REQUIRE_EQ_MSG(0, fetestexcept(FE_ALL_EXCEPT),
103		    "conj(%#.2g + %#.2gI): threw an exception: %#x", creal(in),
104		    cimag(in), fetestexcept(FE_ALL_EXCEPT));
105
106		ATF_REQUIRE_EQ(0, feclearexcept(FE_ALL_EXCEPT));
107		ATF_REQUIRE_MSG(cfpequal(libconjl(in), expected),
108		    "conjl(%#.2g + %#.2gI): wrong value", creal(in), cimag(in));
109		ATF_REQUIRE_EQ_MSG(0, fetestexcept(FE_ALL_EXCEPT),
110		    "conjl(%#.2g + %#.2gI): threw an exception: %#x", creal(in),
111		    cimag(in), fetestexcept(FE_ALL_EXCEPT));
112	}
113}
114
115ATF_TP_ADD_TCS(tp)
116{
117	ATF_TP_ADD_TC(tp, main);
118
119	return (atf_no_error());
120}
121