45de1d006d
because different tests have different ideas about what it means to be "close enough" to the right answer, depending on the properties of the function being tested. In the process, I fixed some warnings and added a few more 'volatile' hacks, which are sufficient to make all the tests pass at -O2 with clang.
140 lines
4.4 KiB
C
140 lines
4.4 KiB
C
/*-
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* Copyright (c) 2008 David Schultz <das@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Tests for conj{,f,l}()
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <assert.h>
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#include <complex.h>
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#include <fenv.h>
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#include <math.h>
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#include <stdio.h>
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#include "test-utils.h"
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#pragma STDC CX_LIMITED_RANGE off
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/* Make sure gcc doesn't use builtin versions of these or honor __pure2. */
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static float complex (*libconjf)(float complex) = conjf;
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static double complex (*libconj)(double complex) = conj;
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static long double complex (*libconjl)(long double complex) = conjl;
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static float (*libcrealf)(float complex) = crealf;
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static double (*libcreal)(double complex) = creal;
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static long double (*libcreall)(long double complex) = creall;
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static float (*libcimagf)(float complex) = cimagf;
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static double (*libcimag)(double complex) = cimag;
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static long double (*libcimagl)(long double complex) = cimagl;
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static const double tests[] = {
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/* a + bI */
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0.0, 0.0,
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0.0, 1.0,
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1.0, 0.0,
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-1.0, 0.0,
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1.0, -0.0,
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0.0, -1.0,
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2.0, 4.0,
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0.0, INFINITY,
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0.0, -INFINITY,
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INFINITY, 0.0,
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NAN, 1.0,
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1.0, NAN,
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NAN, NAN,
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-INFINITY, INFINITY,
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};
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int
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main(int argc, char *argv[])
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{
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static const int ntests = sizeof(tests) / sizeof(tests[0]) / 2;
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complex float in;
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complex long double expected;
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int i;
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printf("1..%d\n", ntests * 3);
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for (i = 0; i < ntests; i++) {
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__real__ expected = __real__ in = tests[2 * i];
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__imag__ in = tests[2 * i + 1];
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__imag__ expected = -cimag(in);
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assert(fpequal(libcrealf(in), __real__ in));
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assert(fpequal(libcreal(in), __real__ in));
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assert(fpequal(libcreall(in), __real__ in));
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assert(fpequal(libcimagf(in), __imag__ in));
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assert(fpequal(libcimag(in), __imag__ in));
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assert(fpequal(libcimagl(in), __imag__ in));
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feclearexcept(FE_ALL_EXCEPT);
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if (!cfpequal(libconjf(in), expected)) {
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printf("not ok %d\t# conjf(%#.2g + %#.2gI): "
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"wrong value\n",
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3 * i + 1, creal(in), cimag(in));
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} else if (fetestexcept(FE_ALL_EXCEPT)) {
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printf("not ok %d\t# conjf(%#.2g + %#.2gI): "
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"threw an exception\n",
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3 * i + 1, creal(in), cimag(in));
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} else {
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printf("ok %d\t\t# conjf(%#.2g + %#.2gI)\n",
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3 * i + 1, creal(in), cimag(in));
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}
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feclearexcept(FE_ALL_EXCEPT);
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if (!cfpequal(libconj(in), expected)) {
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printf("not ok %d\t# conj(%#.2g + %#.2gI): "
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"wrong value\n",
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3 * i + 2, creal(in), cimag(in));
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} else if (fetestexcept(FE_ALL_EXCEPT)) {
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printf("not ok %d\t# conj(%#.2g + %#.2gI): "
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"threw an exception\n",
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3 * i + 2, creal(in), cimag(in));
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} else {
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printf("ok %d\t\t# conj(%#.2g + %#.2gI)\n",
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3 * i + 2, creal(in), cimag(in));
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}
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feclearexcept(FE_ALL_EXCEPT);
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if (!cfpequal(libconjl(in), expected)) {
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printf("not ok %d\t# conjl(%#.2g + %#.2gI): "
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"wrong value\n",
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3 * i + 3, creal(in), cimag(in));
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} else if (fetestexcept(FE_ALL_EXCEPT)) {
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printf("not ok %d\t# conjl(%#.2g + %#.2gI): "
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"threw an exception\n",
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3 * i + 3, creal(in), cimag(in));
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} else {
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printf("ok %d\t\t# conjl(%#.2g + %#.2gI)\n",
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3 * i + 3, creal(in), cimag(in));
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}
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}
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return (0);
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}
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