freebsd-dev/contrib/netbsd-tests/lib/libm/t_asin.c
Alex Richardson 1ec3feb648 Update libm tests from NetBSD
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
2021-02-22 17:41:04 +00:00

308 lines
6.8 KiB
C

/* $NetBSD: t_asin.c,v 1.4 2018/11/07 03:59:36 riastradh Exp $ */
/*-
* Copyright (c) 2011 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jukka Ruohonen.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <atf-c.h>
#include <float.h>
#include <math.h>
static const struct {
double x;
double y;
} values[] = {
{ -1.0, -M_PI / 2, },
{ -0.9, -1.119769514998634, },
{ -0.5, -M_PI / 6, },
{ -0.1, -0.1001674211615598, },
{ 0.1, 0.1001674211615598, },
{ 0.5, M_PI / 6, },
{ 0.9, 1.119769514998634, },
{ 1.0, M_PI / 2, },
};
/*
* asin(3)
*/
ATF_TC(asin_nan);
ATF_TC_HEAD(asin_nan, tc)
{
atf_tc_set_md_var(tc, "descr", "Test asin(NaN) == NaN");
}
ATF_TC_BODY(asin_nan, tc)
{
const double x = 0.0L / 0.0L;
if (isnan(asin(x)) == 0)
atf_tc_fail_nonfatal("asin(NaN) != NaN");
}
ATF_TC(asin_inf_neg);
ATF_TC_HEAD(asin_inf_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test asin(-Inf) == NaN");
}
ATF_TC_BODY(asin_inf_neg, tc)
{
const double x = -1.0L / 0.0L;
if (isnan(asin(x)) == 0)
atf_tc_fail_nonfatal("asin(-Inf) != NaN");
}
ATF_TC(asin_inf_pos);
ATF_TC_HEAD(asin_inf_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test asin(+Inf) == NaN");
}
ATF_TC_BODY(asin_inf_pos, tc)
{
const double x = 1.0L / 0.0L;
if (isnan(asin(x)) == 0)
atf_tc_fail_nonfatal("asin(+Inf) != NaN");
}
ATF_TC(asin_range);
ATF_TC_HEAD(asin_range, tc)
{
atf_tc_set_md_var(tc, "descr", "Test asin(x) == NaN, x < -1, x > 1");
}
ATF_TC_BODY(asin_range, tc)
{
const double x[] = { -1.1, -1.000000001, 1.1, 1.000000001 };
size_t i;
for (i = 0; i < __arraycount(x); i++) {
if (isnan(asin(x[i])) == 0)
atf_tc_fail_nonfatal("asin(%f) != NaN", x[i]);
}
}
ATF_TC(asin_inrange);
ATF_TC_HEAD(asin_inrange, tc)
{
atf_tc_set_md_var(tc, "descr", "Test asin(x) for some values");
}
ATF_TC_BODY(asin_inrange, tc)
{
const double eps = DBL_EPSILON;
size_t i;
for (i = 0; i < __arraycount(values); i++) {
double x = values[i].x;
double y = values[i].y;
if (!(fabs((asin(x) - y)/y) <= eps))
atf_tc_fail_nonfatal("asin(%g) != %g",
values[i].x, values[i].y);
}
}
ATF_TC(asin_zero_neg);
ATF_TC_HEAD(asin_zero_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test asin(-0.0) == -0.0");
}
ATF_TC_BODY(asin_zero_neg, tc)
{
const double x = -0.0L;
double y = asin(x);
if (fabs(y) > 0.0 || signbit(y) == 0)
atf_tc_fail_nonfatal("asin(-0.0) != -0.0");
}
ATF_TC(asin_zero_pos);
ATF_TC_HEAD(asin_zero_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test asin(+0.0) == +0.0");
}
ATF_TC_BODY(asin_zero_pos, tc)
{
const double x = 0.0L;
double y = asin(x);
if (fabs(y) > 0.0 || signbit(y) != 0)
atf_tc_fail_nonfatal("asin(+0.0) != +0.0");
}
/*
* asinf(3)
*/
ATF_TC(asinf_nan);
ATF_TC_HEAD(asinf_nan, tc)
{
atf_tc_set_md_var(tc, "descr", "Test asinf(NaN) == NaN");
}
ATF_TC_BODY(asinf_nan, tc)
{
const float x = 0.0L / 0.0L;
if (isnan(asinf(x)) == 0)
atf_tc_fail_nonfatal("asinf(NaN) != NaN");
}
ATF_TC(asinf_inf_neg);
ATF_TC_HEAD(asinf_inf_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test asinf(-Inf) == NaN");
}
ATF_TC_BODY(asinf_inf_neg, tc)
{
const float x = -1.0L / 0.0L;
if (isnan(asinf(x)) == 0)
atf_tc_fail_nonfatal("asinf(-Inf) != NaN");
}
ATF_TC(asinf_inf_pos);
ATF_TC_HEAD(asinf_inf_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test asinf(+Inf) == NaN");
}
ATF_TC_BODY(asinf_inf_pos, tc)
{
const float x = 1.0L / 0.0L;
if (isnan(asinf(x)) == 0)
atf_tc_fail_nonfatal("asinf(+Inf) != NaN");
}
ATF_TC(asinf_range);
ATF_TC_HEAD(asinf_range, tc)
{
atf_tc_set_md_var(tc, "descr", "Test asinf(x) == NaN, x < -1, x > 1");
}
ATF_TC_BODY(asinf_range, tc)
{
const float x[] = { -1.1, -1.0000001, 1.1, 1.0000001 };
size_t i;
for (i = 0; i < __arraycount(x); i++) {
if (isnan(asinf(x[i])) == 0)
atf_tc_fail_nonfatal("asinf(%f) != NaN", x[i]);
}
}
ATF_TC(asinf_inrange);
ATF_TC_HEAD(asinf_inrange, tc)
{
atf_tc_set_md_var(tc, "descr", "Test asinf(x) for some values");
}
ATF_TC_BODY(asinf_inrange, tc)
{
const float eps = FLT_EPSILON;
size_t i;
for (i = 0; i < __arraycount(values); i++) {
float x = values[i].x;
float y = values[i].y;
#ifdef __NetBSD__
if (fabs(x) == 0.5)
atf_tc_expect_fail("asinf is busted,"
" gives ~2ulp error");
#endif
if (!(fabsf((asinf(x) - y)/y) <= eps)) {
atf_tc_fail_nonfatal("asinf(%.8g) = %.8g != %.8g,"
" error=~%.1fulp",
x, asinf(x), y, fabsf(((asinf(x) - y)/y)/eps));
}
if (fabs(x) == 0.5)
atf_tc_expect_pass();
}
}
ATF_TC(asinf_zero_neg);
ATF_TC_HEAD(asinf_zero_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test asinf(-0.0) == -0.0");
}
ATF_TC_BODY(asinf_zero_neg, tc)
{
const float x = -0.0L;
float y = asinf(x);
if (fabsf(y) > 0.0 || signbit(y) == 0)
atf_tc_fail_nonfatal("asinf(-0.0) != -0.0");
}
ATF_TC(asinf_zero_pos);
ATF_TC_HEAD(asinf_zero_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test asinf(+0.0) == +0.0");
}
ATF_TC_BODY(asinf_zero_pos, tc)
{
const float x = 0.0L;
float y = asinf(x);
if (fabsf(y) > 0.0 || signbit(y) != 0)
atf_tc_fail_nonfatal("asinf(+0.0) != +0.0");
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, asin_nan);
ATF_TP_ADD_TC(tp, asin_inf_neg);
ATF_TP_ADD_TC(tp, asin_inf_pos);
ATF_TP_ADD_TC(tp, asin_range);
ATF_TP_ADD_TC(tp, asin_inrange);
ATF_TP_ADD_TC(tp, asin_zero_neg);
ATF_TP_ADD_TC(tp, asin_zero_pos);
ATF_TP_ADD_TC(tp, asinf_nan);
ATF_TP_ADD_TC(tp, asinf_inf_neg);
ATF_TP_ADD_TC(tp, asinf_inf_pos);
ATF_TP_ADD_TC(tp, asinf_range);
ATF_TP_ADD_TC(tp, asinf_inrange);
ATF_TP_ADD_TC(tp, asinf_zero_neg);
ATF_TP_ADD_TC(tp, asinf_zero_pos);
return atf_no_error();
}