I did this without a full vendor update since that would cause too many conflicts. Since these files now almost match the NetBSD sources the next git subtree merge should work just fine. Reviewed By: lwhsu Differential Revision: https://reviews.freebsd.org/D28797
413 lines
9.2 KiB
C
413 lines
9.2 KiB
C
/* $NetBSD: t_cbrt.c,v 1.5 2018/11/15 05:14:20 riastradh Exp $ */
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/*-
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* Copyright (c) 2011 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jukka Ruohonen.
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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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: t_cbrt.c,v 1.5 2018/11/15 05:14:20 riastradh Exp $");
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#include <atf-c.h>
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#include <float.h>
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#include <math.h>
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#include <stdio.h>
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/*
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* cbrt(3)
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*/
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ATF_TC(cbrt_nan);
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ATF_TC_HEAD(cbrt_nan, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrt(NaN) == NaN");
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}
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ATF_TC_BODY(cbrt_nan, tc)
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{
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const double x = 0.0L / 0.0L;
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ATF_CHECK(isnan(x) != 0);
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ATF_CHECK(isnan(cbrt(x)) != 0);
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}
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ATF_TC(cbrt_pow);
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ATF_TC_HEAD(cbrt_pow, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrt(3) vs. pow(3)");
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}
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ATF_TC_BODY(cbrt_pow, tc)
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{
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const double x[] = { 0.0, 0.005, 1.0, 99.0, 123.123, 9999.0 };
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/* Neither cbrt nor pow is required to be correctly rounded. */
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const double eps = 2*DBL_EPSILON;
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size_t i;
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for (i = 0; i < __arraycount(x); i++) {
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double x_cbrt = cbrt(x[i]);
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double x_pow13 = pow(x[i], 1.0 / 3.0);
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bool ok;
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if (x[i] == 0) {
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ok = (x_cbrt == x_pow13);
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} else {
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ok = (fabs((x_cbrt - x_pow13)/x_cbrt) <= eps);
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}
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if (!ok) {
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atf_tc_fail_nonfatal("cbrt(%.17g) = %.17g != "
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"pow(%.17g, 1/3) = %.17g\n",
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x[i], x_cbrt, x[i], x_pow13);
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}
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}
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}
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ATF_TC(cbrt_inf_neg);
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ATF_TC_HEAD(cbrt_inf_neg, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrt(-Inf) == -Inf");
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}
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ATF_TC_BODY(cbrt_inf_neg, tc)
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{
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const double x = -1.0L / 0.0L;
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double y = cbrt(x);
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ATF_CHECK(isinf(y) != 0);
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ATF_CHECK(signbit(y) != 0);
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}
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ATF_TC(cbrt_inf_pos);
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ATF_TC_HEAD(cbrt_inf_pos, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrt(+Inf) == +Inf");
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}
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ATF_TC_BODY(cbrt_inf_pos, tc)
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{
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const double x = 1.0L / 0.0L;
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double y = cbrt(x);
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ATF_CHECK(isinf(y) != 0);
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ATF_CHECK(signbit(y) == 0);
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}
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ATF_TC(cbrt_zero_neg);
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ATF_TC_HEAD(cbrt_zero_neg, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrt(-0.0) == -0.0");
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}
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ATF_TC_BODY(cbrt_zero_neg, tc)
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{
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const double x = -0.0L;
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double y = cbrt(x);
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if (fabs(y) > 0.0 || signbit(y) == 0)
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atf_tc_fail_nonfatal("cbrt(-0.0) != -0.0");
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}
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ATF_TC(cbrt_zero_pos);
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ATF_TC_HEAD(cbrt_zero_pos, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrt(+0.0) == +0.0");
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}
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ATF_TC_BODY(cbrt_zero_pos, tc)
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{
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const double x = 0.0L;
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double y = cbrt(x);
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if (fabs(y) > 0.0 || signbit(y) != 0)
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atf_tc_fail_nonfatal("cbrt(+0.0) != +0.0");
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}
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/*
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* cbrtf(3)
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*/
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ATF_TC(cbrtf_nan);
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ATF_TC_HEAD(cbrtf_nan, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrtf(NaN) == NaN");
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}
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ATF_TC_BODY(cbrtf_nan, tc)
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{
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const float x = 0.0L / 0.0L;
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ATF_CHECK(isnan(x) != 0);
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ATF_CHECK(isnan(cbrtf(x)) != 0);
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}
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ATF_TC(cbrtf_powf);
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ATF_TC_HEAD(cbrtf_powf, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrtf(3) vs. powf(3)");
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}
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ATF_TC_BODY(cbrtf_powf, tc)
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{
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const float x[] = { 0.0, 0.005, 1.0, 99.0, 123.123, 9999.0 };
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/* Neither cbrt nor pow is required to be correctly rounded. */
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const float eps = 2*FLT_EPSILON;
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size_t i;
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for (i = 0; i < __arraycount(x); i++) {
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float x_cbrt = cbrtf(x[i]);
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float x_pow13 = powf(x[i], 1.0 / 3.0);
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bool ok;
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if (x[i] == 0) {
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ok = (x_cbrt == x_pow13);
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} else {
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ok = (fabsf((x_cbrt - x_pow13)/x_cbrt) <= eps);
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}
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if (!ok) {
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atf_tc_fail_nonfatal("cbrtf(%.9g) = %.9g. != "
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"powf(%.9g, 1/3) = %.9g\n",
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(double)x[i], (double)x_cbrt,
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(double)x[i], (double)x_pow13);
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}
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}
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}
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ATF_TC(cbrtf_inf_neg);
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ATF_TC_HEAD(cbrtf_inf_neg, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrtf(-Inf) == -Inf");
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}
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ATF_TC_BODY(cbrtf_inf_neg, tc)
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{
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const float x = -1.0L / 0.0L;
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float y = cbrtf(x);
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ATF_CHECK(isinf(y) != 0);
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ATF_CHECK(signbit(y) != 0);
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}
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ATF_TC(cbrtf_inf_pos);
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ATF_TC_HEAD(cbrtf_inf_pos, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrtf(+Inf) == +Inf");
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}
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ATF_TC_BODY(cbrtf_inf_pos, tc)
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{
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const float x = 1.0L / 0.0L;
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float y = cbrtf(x);
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ATF_CHECK(isinf(y) != 0);
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ATF_CHECK(signbit(y) == 0);
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}
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ATF_TC(cbrtf_zero_neg);
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ATF_TC_HEAD(cbrtf_zero_neg, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrtf(-0.0) == -0.0");
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}
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ATF_TC_BODY(cbrtf_zero_neg, tc)
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{
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const float x = -0.0L;
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float y = cbrtf(x);
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if (fabsf(y) > 0.0 || signbit(y) == 0)
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atf_tc_fail_nonfatal("cbrtf(-0.0) != -0.0");
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}
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ATF_TC(cbrtf_zero_pos);
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ATF_TC_HEAD(cbrtf_zero_pos, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrtf(+0.0) == +0.0");
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}
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ATF_TC_BODY(cbrtf_zero_pos, tc)
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{
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const float x = 0.0L;
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float y = cbrtf(x);
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if (fabsf(y) > 0.0 || signbit(y) != 0)
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atf_tc_fail_nonfatal("cbrtf(+0.0) != +0.0");
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}
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#if !defined(__FreeBSD__) || LDBL_PREC != 53
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/*
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* cbrtl(3)
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*/
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ATF_TC(cbrtl_nan);
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ATF_TC_HEAD(cbrtl_nan, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrtl(NaN) == NaN");
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}
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ATF_TC_BODY(cbrtl_nan, tc)
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{
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const long double x = 0.0L / 0.0L;
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ATF_CHECK(isnan(x) != 0);
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ATF_CHECK(isnan(cbrtl(x)) != 0);
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}
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ATF_TC(cbrtl_powl);
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ATF_TC_HEAD(cbrtl_powl, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrtl(3) vs. powl(3)");
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}
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ATF_TC_BODY(cbrtl_powl, tc)
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{
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const long double x[] = { 0.0, 0.005, 1.0, 99.0, 123.123, 9999.0 };
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/* Neither cbrt nor pow is required to be correctly rounded. */
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const long double eps = 2*LDBL_EPSILON;
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size_t i;
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#if defined(__amd64__) && defined(__clang__) && __clang_major__ >= 7 && \
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__clang_major__ < 10 && __FreeBSD_cc_version < 1300002
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atf_tc_expect_fail("test fails with clang 7-9 - bug 234040");
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#endif
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for (i = 0; i < __arraycount(x); i++) {
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long double x_cbrt = cbrtl(x[i]);
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#ifdef __FreeBSD__
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/*
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* NetBSD doesn't have a real powl/cbrtl implementation, they
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* just call the double version. On FreeBSD we have a real
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* powl implementation so we have to cast the second argument
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* to long double before dividing to get a more precise
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* approximation of 1/3.
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* TODO: upstream this diff.
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*/
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long double x_pow13 = powl(x[i], (long double)1.0 / 3.0);
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#else
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long double x_pow13 = powl(x[i], 1.0 / 3.0);
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#endif
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bool ok;
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if (x[i] == 0) {
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ok = (x_cbrt == x_pow13);
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} else {
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ok = (fabsl((x_cbrt - x_pow13)/x_cbrt) <= eps);
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}
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if (!ok) {
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atf_tc_fail_nonfatal("cbrtl(%.35Lg) = %.35Lg != "
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"powl(%.35Lg, 1/3) = %.35Lg\n",
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x[i], x_cbrt, x[i], x_pow13);
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}
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}
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}
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ATF_TC(cbrtl_inf_neg);
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ATF_TC_HEAD(cbrtl_inf_neg, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrtl(-Inf) == -Inf");
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}
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ATF_TC_BODY(cbrtl_inf_neg, tc)
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{
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const long double x = -1.0L / 0.0L;
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long double y = cbrtl(x);
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ATF_CHECK(isinf(y) != 0);
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ATF_CHECK(signbit(y) != 0);
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}
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ATF_TC(cbrtl_inf_pos);
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ATF_TC_HEAD(cbrtl_inf_pos, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrtl(+Inf) == +Inf");
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}
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ATF_TC_BODY(cbrtl_inf_pos, tc)
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{
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const long double x = 1.0L / 0.0L;
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long double y = cbrtl(x);
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ATF_CHECK(isinf(y) != 0);
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ATF_CHECK(signbit(y) == 0);
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}
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ATF_TC(cbrtl_zero_neg);
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ATF_TC_HEAD(cbrtl_zero_neg, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrtl(-0.0) == -0.0");
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}
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ATF_TC_BODY(cbrtl_zero_neg, tc)
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{
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const long double x = -0.0L;
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long double y = cbrtl(x);
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if (fabsl(y) > 0.0 || signbit(y) == 0)
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atf_tc_fail_nonfatal("cbrtl(-0.0) != -0.0");
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}
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ATF_TC(cbrtl_zero_pos);
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ATF_TC_HEAD(cbrtl_zero_pos, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test cbrtl(+0.0) == +0.0");
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}
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ATF_TC_BODY(cbrtl_zero_pos, tc)
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{
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const long double x = 0.0L;
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long double y = cbrtl(x);
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if (fabsl(y) > 0.0 || signbit(y) != 0)
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atf_tc_fail_nonfatal("cbrtl(+0.0) != +0.0");
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}
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#endif
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, cbrt_nan);
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ATF_TP_ADD_TC(tp, cbrt_pow);
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ATF_TP_ADD_TC(tp, cbrt_inf_neg);
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ATF_TP_ADD_TC(tp, cbrt_inf_pos);
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ATF_TP_ADD_TC(tp, cbrt_zero_neg);
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ATF_TP_ADD_TC(tp, cbrt_zero_pos);
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ATF_TP_ADD_TC(tp, cbrtf_nan);
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ATF_TP_ADD_TC(tp, cbrtf_powf);
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ATF_TP_ADD_TC(tp, cbrtf_inf_neg);
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ATF_TP_ADD_TC(tp, cbrtf_inf_pos);
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ATF_TP_ADD_TC(tp, cbrtf_zero_neg);
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ATF_TP_ADD_TC(tp, cbrtf_zero_pos);
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#if !defined(__FreeBSD__) || LDBL_PREC != 53
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ATF_TP_ADD_TC(tp, cbrtl_nan);
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ATF_TP_ADD_TC(tp, cbrtl_powl);
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ATF_TP_ADD_TC(tp, cbrtl_inf_neg);
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ATF_TP_ADD_TC(tp, cbrtl_inf_pos);
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ATF_TP_ADD_TC(tp, cbrtl_zero_neg);
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ATF_TP_ADD_TC(tp, cbrtl_zero_pos);
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#endif
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return atf_no_error();
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}
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