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/* $OpenBSD: conj_test.c,v 1.2 2019/02/21 17:36:41 bluhm Exp $ */
/*-
* Copyright (c) 2008 David Schultz <das@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Tests for conj{,f,l}()
*/
#include <sys/cdefs.h>
/* $FreeBSD: head/lib/msun/tests/conj_test.c 314650 2017-03-04 10:07:46Z ngie $ */
#include <assert.h>
#include <complex.h>
#include <fenv.h>
#include <math.h>
#include <stdio.h>
#include "test-utils.h"
#pragma STDC CX_LIMITED_RANGE OFF
/*
* Test that a function returns the correct value and sets the
* exception flags correctly. The exceptmask specifies which
* exceptions we should check. We need to be lenient for several
* reasons, but mainly because on some architectures it's impossible
* to raise FE_OVERFLOW without raising FE_INEXACT. In some cases,
* whether cexp() raises an invalid exception is unspecified.
*
* These are macros instead of functions so that assert provides more
* meaningful error messages.
*/
#define test(func, z, result, exceptmask, excepts) do { \
assert(feclearexcept(FE_ALL_EXCEPT) == 0); \
assert(cfpequal((func)(z), (result))); \
assert(((void)(func), fetestexcept(exceptmask) == (excepts))); \
} while (0)
/* Make sure gcc doesn't use builtin versions of these or honor __pure2. */
static float complex (*libconjf)(float complex) = conjf;
static double complex (*libconj)(double complex) = conj;
static long double complex (*libconjl)(long double complex) = conjl;
static float (*libcrealf)(float complex) = crealf;
static double (*libcreal)(double complex) = creal;
static long double (*libcreall)(long double complex) = creall;
static float (*libcimagf)(float complex) = cimagf;
static double (*libcimag)(double complex) = cimag;
static long double (*libcimagl)(long double complex) = cimagl;
static const double tests[] = {
/* a + bI */
0.0, 0.0,
0.0, 1.0,
1.0, 0.0,
-1.0, 0.0,
1.0, -0.0,
0.0, -1.0,
2.0, 4.0,
0.0, INFINITY,
0.0, -INFINITY,
INFINITY, 0.0,
NAN, 1.0,
1.0, NAN,
NAN, NAN,
-INFINITY, INFINITY,
};
int
main(void)
{
static const int ntests = sizeof(tests) / sizeof(tests[0]) / 2;
complex float in;
complex long double expected;
int i;
printf("1..%d\n", ntests * 3);
for (i = 0; i < ntests; i++) {
__real__ expected = __real__ in = tests[2 * i];
__imag__ in = tests[2 * i + 1];
__imag__ expected = -cimag(in);
assert(fpequal(libcrealf(in), __real__ in));
assert(fpequal(libcreal(in), __real__ in));
assert(fpequal(libcreall(in), __real__ in));
assert(fpequal(libcimagf(in), __imag__ in));
assert(fpequal(libcimag(in), __imag__ in));
assert(fpequal(libcimagl(in), __imag__ in));
test(libconjf, in, expected, FE_ALL_EXCEPT, 0);
printf("ok %d\t\t# conjf(%#.2g + %#.2gI)\n",
3 * i + 1, creal(in), cimag(in));
test(libconj, in, expected, FE_ALL_EXCEPT, 0);
printf("ok %d\t\t# conj(%#.2g + %#.2gI)\n",
3 * i + 2, creal(in), cimag(in));
test(libconjl, in, expected, FE_ALL_EXCEPT, 0);
printf("ok %d\t\t# conjl(%#.2g + %#.2gI)\n",
3 * i + 3, creal(in), cimag(in));
}
return (0);
}
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