293 lines
6.4 KiB
C
293 lines
6.4 KiB
C
/* $NetBSD: t_atan.c,v 1.6 2012/03/11 06:36:05 jruoho 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 <atf-c.h>
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#include <atf-c/config.h>
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#include <math.h>
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#include <stdlib.h>
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#include <string.h>
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/*
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* atan(3)
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*/
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ATF_TC(atan_nan);
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ATF_TC_HEAD(atan_nan, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test atan(NaN) == NaN");
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}
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ATF_TC_BODY(atan_nan, tc)
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{
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#ifndef __vax__
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const double x = 0.0L / 0.0L;
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if (isnan(atan(x)) == 0)
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atf_tc_fail_nonfatal("atan(NaN) != NaN");
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#endif
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}
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ATF_TC(atan_inf_neg);
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ATF_TC_HEAD(atan_inf_neg, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test atan(-Inf) == -pi/2");
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}
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ATF_TC_BODY(atan_inf_neg, tc)
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{
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#ifndef __vax__
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const double x = -1.0L / 0.0L;
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const double eps = 1.0e-40;
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if (strcmp(atf_config_get("atf_arch"), "i386") == 0 &&
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system("cpuctl identify 0 | grep -q QEMU") != 0)
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atf_tc_expect_fail("PR port-i386/46108");
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if (fabs(atan(x) + M_PI_2) > eps)
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atf_tc_fail_nonfatal("atan(-Inf) != -pi/2");
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#endif
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}
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ATF_TC(atan_inf_pos);
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ATF_TC_HEAD(atan_inf_pos, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test atan(+Inf) == pi/2");
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}
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ATF_TC_BODY(atan_inf_pos, tc)
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{
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#ifndef __vax__
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const double x = +1.0L / 0.0L;
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const double eps = 1.0e-40;
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if (strcmp(atf_config_get("atf_arch"), "i386") == 0 &&
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system("cpuctl identify 0 | grep -q QEMU") != 0)
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atf_tc_expect_fail("PR port-i386/46108");
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if (fabs(atan(x) - M_PI_2) > eps)
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atf_tc_fail_nonfatal("atan(+Inf) != pi/2");
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#endif
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}
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ATF_TC(atan_tan);
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ATF_TC_HEAD(atan_tan, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test atan(tan(x)) == x");
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}
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ATF_TC_BODY(atan_tan, tc)
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{
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#ifndef __vax__
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const double x[] = { 0.0, 1.0, M_PI / 2, M_PI / 3, M_PI / 6 };
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const double eps = 1.0e-40;
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double y;
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size_t i;
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if (strcmp(atf_config_get("atf_arch"), "i386") == 0 &&
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system("cpuctl identify 0 | grep -q QEMU") != 0)
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atf_tc_expect_fail("PR port-i386/46108");
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for (i = 0; i < __arraycount(x); i++) {
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y = atan(tan(x[i]));
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if (fabs(y - x[i]) > eps)
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atf_tc_fail_nonfatal("atan(tan(%0.03f)) != %0.03f",
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x[i], x[i]);
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}
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#endif
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}
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ATF_TC(atan_zero_neg);
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ATF_TC_HEAD(atan_zero_neg, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test atan(-0.0) == -0.0");
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}
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ATF_TC_BODY(atan_zero_neg, tc)
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{
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#ifndef __vax__
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const double x = -0.0L;
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double y = atan(x);
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if (fabs(y) > 0.0 || signbit(y) == 0)
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atf_tc_fail_nonfatal("atan(-0.0) != -0.0");
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#endif
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}
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ATF_TC(atan_zero_pos);
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ATF_TC_HEAD(atan_zero_pos, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test atan(+0.0) == +0.0");
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}
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ATF_TC_BODY(atan_zero_pos, tc)
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{
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#ifndef __vax__
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const double x = 0.0L;
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double y = atan(x);
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if (fabs(y) > 0.0 || signbit(y) != 0)
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atf_tc_fail_nonfatal("atan(+0.0) != +0.0");
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#endif
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}
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/*
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* atanf(3)
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*/
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ATF_TC(atanf_nan);
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ATF_TC_HEAD(atanf_nan, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test atanf(NaN) == NaN");
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}
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ATF_TC_BODY(atanf_nan, tc)
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{
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#ifndef __vax__
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const float x = 0.0L / 0.0L;
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if (isnan(atanf(x)) == 0)
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atf_tc_fail_nonfatal("atanf(NaN) != NaN");
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#endif
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}
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ATF_TC(atanf_inf_neg);
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ATF_TC_HEAD(atanf_inf_neg, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test atanf(-Inf) == -pi/2");
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}
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ATF_TC_BODY(atanf_inf_neg, tc)
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{
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#ifndef __vax__
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const float x = -1.0L / 0.0L;
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const float eps = 1.0e-7;
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if (fabsf(atanf(x) + M_PI_2) > eps)
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atf_tc_fail_nonfatal("atanf(-Inf) != -pi/2");
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#endif
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}
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ATF_TC(atanf_inf_pos);
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ATF_TC_HEAD(atanf_inf_pos, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test atanf(+Inf) == pi/2");
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}
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ATF_TC_BODY(atanf_inf_pos, tc)
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{
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#ifndef __vax__
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const float x = +1.0L / 0.0L;
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const float eps = 1.0e-7;
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if (fabsf(atanf(x) - M_PI_2) > eps)
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atf_tc_fail_nonfatal("atanf(+Inf) != pi/2");
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#endif
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}
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ATF_TC(atanf_tanf);
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ATF_TC_HEAD(atanf_tanf, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test atanf(tanf(x)) == x");
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}
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ATF_TC_BODY(atanf_tanf, tc)
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{
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#ifndef __vax__
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const float x[] = { 0.0, 1.0, M_PI / 3, M_PI / 6 };
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const float eps = 1.0e-7;
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float y;
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size_t i;
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for (i = 0; i < __arraycount(x); i++) {
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y = atanf(tanf(x[i]));
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if (fabsf(y - x[i]) > eps)
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atf_tc_fail_nonfatal("atanf(tanf(%0.03f)) != %0.03f",
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x[i], x[i]);
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}
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#endif
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}
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ATF_TC(atanf_zero_neg);
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ATF_TC_HEAD(atanf_zero_neg, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test atanf(-0.0) == -0.0");
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}
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ATF_TC_BODY(atanf_zero_neg, tc)
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{
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#ifndef __vax__
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const float x = -0.0L;
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float y = atanf(x);
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if (fabsf(y) > 0.0 || signbit(y) == 0)
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atf_tc_fail_nonfatal("atanf(-0.0) != -0.0");
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#endif
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}
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ATF_TC(atanf_zero_pos);
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ATF_TC_HEAD(atanf_zero_pos, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test atanf(+0.0) == +0.0");
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}
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ATF_TC_BODY(atanf_zero_pos, tc)
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{
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#ifndef __vax__
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const float x = 0.0L;
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float y = atanf(x);
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if (fabsf(y) > 0.0 || signbit(y) != 0)
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atf_tc_fail_nonfatal("atanf(+0.0) != +0.0");
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#endif
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, atan_nan);
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ATF_TP_ADD_TC(tp, atan_inf_neg);
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ATF_TP_ADD_TC(tp, atan_inf_pos);
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ATF_TP_ADD_TC(tp, atan_tan);
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ATF_TP_ADD_TC(tp, atan_zero_neg);
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ATF_TP_ADD_TC(tp, atan_zero_pos);
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ATF_TP_ADD_TC(tp, atanf_nan);
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ATF_TP_ADD_TC(tp, atanf_inf_neg);
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ATF_TP_ADD_TC(tp, atanf_inf_pos);
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ATF_TP_ADD_TC(tp, atanf_tanf);
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ATF_TP_ADD_TC(tp, atanf_zero_neg);
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ATF_TP_ADD_TC(tp, atanf_zero_pos);
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return atf_no_error();
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}
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