xref: /freebsd/lib/msun/tests/conj_test.c (revision cfd6422a5217410fbd66f7a7a8a64d9d85e61229)
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 __FBSDID("$FreeBSD$");
33 
34 #include <assert.h>
35 #include <complex.h>
36 #include <fenv.h>
37 #include <math.h>
38 #include <stdio.h>
39 
40 #include "test-utils.h"
41 
42 #pragma	STDC CX_LIMITED_RANGE	OFF
43 
44 /* Make sure gcc doesn't use builtin versions of these or honor __pure2. */
45 static float complex (*libconjf)(float complex) = conjf;
46 static double complex (*libconj)(double complex) = conj;
47 static long double complex (*libconjl)(long double complex) = conjl;
48 static float (*libcrealf)(float complex) = crealf;
49 static double (*libcreal)(double complex) = creal;
50 static long double (*libcreall)(long double complex) = creall;
51 static float (*libcimagf)(float complex) = cimagf;
52 static double (*libcimag)(double complex) = cimag;
53 static long double (*libcimagl)(long double complex) = cimagl;
54 
55 static const double tests[] = {
56 	/* a +  bI */
57 	0.0,	0.0,
58 	0.0,	1.0,
59 	1.0,	0.0,
60 	-1.0,	0.0,
61 	1.0,	-0.0,
62 	0.0,	-1.0,
63 	2.0,	4.0,
64 	0.0,	INFINITY,
65 	0.0,	-INFINITY,
66 	INFINITY, 0.0,
67 	NAN,	1.0,
68 	1.0,	NAN,
69 	NAN,	NAN,
70 	-INFINITY, INFINITY,
71 };
72 
73 int
74 main(void)
75 {
76 	static const int ntests = sizeof(tests) / sizeof(tests[0]) / 2;
77 	complex float in;
78 	complex long double expected;
79 	int i;
80 
81 	printf("1..%d\n", ntests * 3);
82 
83 	for (i = 0; i < ntests; i++) {
84 		__real__ expected = __real__ in = tests[2 * i];
85 		__imag__ in = tests[2 * i + 1];
86 		__imag__ expected = -cimag(in);
87 
88 		assert(fpequal(libcrealf(in), __real__ in));
89 		assert(fpequal(libcreal(in), __real__ in));
90 		assert(fpequal(libcreall(in), __real__ in));
91 		assert(fpequal(libcimagf(in), __imag__ in));
92 		assert(fpequal(libcimag(in), __imag__ in));
93 		assert(fpequal(libcimagl(in), __imag__ in));
94 
95 		feclearexcept(FE_ALL_EXCEPT);
96 		if (!cfpequal(libconjf(in), expected)) {
97 			printf("not ok %d\t# conjf(%#.2g + %#.2gI): "
98 			       "wrong value\n",
99 			       3 * i + 1, creal(in), cimag(in));
100 		} else if (fetestexcept(FE_ALL_EXCEPT)) {
101 			printf("not ok %d\t# conjf(%#.2g + %#.2gI): "
102 			       "threw an exception\n",
103 			       3 * i + 1, creal(in), cimag(in));
104 		} else {
105 			printf("ok %d\t\t# conjf(%#.2g + %#.2gI)\n",
106 			       3 * i + 1, creal(in), cimag(in));
107 		}
108 
109 		feclearexcept(FE_ALL_EXCEPT);
110 		if (!cfpequal(libconj(in), expected)) {
111 			printf("not ok %d\t# conj(%#.2g + %#.2gI): "
112 			       "wrong value\n",
113 			       3 * i + 2, creal(in), cimag(in));
114 		} else if (fetestexcept(FE_ALL_EXCEPT)) {
115 			printf("not ok %d\t# conj(%#.2g + %#.2gI): "
116 			       "threw an exception\n",
117 			       3 * i + 2, creal(in), cimag(in));
118 		} else {
119 			printf("ok %d\t\t# conj(%#.2g + %#.2gI)\n",
120 			       3 * i + 2, creal(in), cimag(in));
121 		}
122 
123 		feclearexcept(FE_ALL_EXCEPT);
124 		if (!cfpequal(libconjl(in), expected)) {
125 			printf("not ok %d\t# conjl(%#.2g + %#.2gI): "
126 			       "wrong value\n",
127 			       3 * i + 3, creal(in), cimag(in));
128 		} else if (fetestexcept(FE_ALL_EXCEPT)) {
129 			printf("not ok %d\t# conjl(%#.2g + %#.2gI): "
130 			       "threw an exception\n",
131 			       3 * i + 3, creal(in), cimag(in));
132 		} else {
133 			printf("ok %d\t\t# conjl(%#.2g + %#.2gI)\n",
134 			       3 * i + 3, creal(in), cimag(in));
135 		}
136 	}
137 
138 	return (0);
139 }
140