diff options
Diffstat (limited to 'contrib/netbsd-tests/lib/libm/t_tanh.c')
| -rw-r--r-- | contrib/netbsd-tests/lib/libm/t_tanh.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/lib/libm/t_tanh.c b/contrib/netbsd-tests/lib/libm/t_tanh.c new file mode 100644 index 0000000..4cc4551 --- /dev/null +++ b/contrib/netbsd-tests/lib/libm/t_tanh.c @@ -0,0 +1,207 @@ +/* $NetBSD: t_tanh.c,v 1.7 2014/03/03 10:39:08 martin 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 <sys/cdefs.h> +__RCSID("$NetBSD: t_tanh.c,v 1.7 2014/03/03 10:39:08 martin Exp $"); + +#include <atf-c.h> +#include <math.h> + +/* + * tanh(3) + */ +ATF_TC(tanh_nan); +ATF_TC_HEAD(tanh_nan, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test tanh(NaN) == NaN"); +} + +ATF_TC_BODY(tanh_nan, tc) +{ + const double x = 0.0L / 0.0L; + + ATF_CHECK(isnan(x) != 0); + ATF_CHECK(isnan(tanh(x)) != 0); +} + +ATF_TC(tanh_inf_neg); +ATF_TC_HEAD(tanh_inf_neg, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test tanh(-Inf) == -1.0"); +} + +ATF_TC_BODY(tanh_inf_neg, tc) +{ + const double x = -1.0L / 0.0L; + + ATF_CHECK(tanh(x) == -1.0); +} + +ATF_TC(tanh_inf_pos); +ATF_TC_HEAD(tanh_inf_pos, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test tanh(+Inf) == +1.0"); +} + +ATF_TC_BODY(tanh_inf_pos, tc) +{ + const double x = 1.0L / 0.0L; + + ATF_CHECK(tanh(x) == 1.0); +} + +ATF_TC(tanh_zero_neg); +ATF_TC_HEAD(tanh_zero_neg, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test tanh(-0.0) == -0.0"); +} + +ATF_TC_BODY(tanh_zero_neg, tc) +{ + const double x = -0.0L; + double y = tanh(x); + + ATF_CHECK(x == y); + ATF_CHECK(signbit(x) != 0); + + ATF_REQUIRE_MSG(signbit(y) != 0, + "compiler bug, waiting for newer gcc import, see PR lib/44057"); +} + +ATF_TC(tanh_zero_pos); +ATF_TC_HEAD(tanh_zero_pos, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test tanh(+0.0) == +0.0"); +} + +ATF_TC_BODY(tanh_zero_pos, tc) +{ + const double x = 0.0L; + double y = tanh(x); + + ATF_CHECK(x == y); + ATF_CHECK(signbit(x) == 0); + ATF_CHECK(signbit(y) == 0); +} + +/* + * tanhf(3) + */ +ATF_TC(tanhf_nan); +ATF_TC_HEAD(tanhf_nan, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test tanhf(NaN) == NaN"); +} + +ATF_TC_BODY(tanhf_nan, tc) +{ + const float x = 0.0L / 0.0L; + + ATF_CHECK(isnan(x) != 0); + ATF_CHECK(isnan(tanhf(x)) != 0); +} + +ATF_TC(tanhf_inf_neg); +ATF_TC_HEAD(tanhf_inf_neg, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test tanhf(-Inf) == -1.0"); +} + +ATF_TC_BODY(tanhf_inf_neg, tc) +{ + const float x = -1.0L / 0.0L; + + ATF_CHECK(tanhf(x) == -1.0); +} + +ATF_TC(tanhf_inf_pos); +ATF_TC_HEAD(tanhf_inf_pos, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test tanhf(+Inf) == +1.0"); +} + +ATF_TC_BODY(tanhf_inf_pos, tc) +{ + const float x = 1.0L / 0.0L; + + ATF_CHECK(tanhf(x) == 1.0); +} + +ATF_TC(tanhf_zero_neg); +ATF_TC_HEAD(tanhf_zero_neg, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test tanhf(-0.0) == -0.0"); +} + +ATF_TC_BODY(tanhf_zero_neg, tc) +{ + const float x = -0.0L; + float y = tanh(x); + + ATF_CHECK(x == y); + ATF_CHECK(signbit(x) != 0); + + ATF_REQUIRE_MSG(signbit(y) != 0, + "compiler bug, waiting for newer gcc import, see PR lib/44057"); +} + +ATF_TC(tanhf_zero_pos); +ATF_TC_HEAD(tanhf_zero_pos, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test tanhf(+0.0) == +0.0"); +} + +ATF_TC_BODY(tanhf_zero_pos, tc) +{ + const float x = 0.0L; + float y = tanhf(x); + + ATF_CHECK(x == y); + ATF_CHECK(signbit(x) == 0); + ATF_CHECK(signbit(y) == 0); +} + +ATF_TP_ADD_TCS(tp) +{ + + ATF_TP_ADD_TC(tp, tanh_nan); + ATF_TP_ADD_TC(tp, tanh_inf_neg); + ATF_TP_ADD_TC(tp, tanh_inf_pos); + ATF_TP_ADD_TC(tp, tanh_zero_neg); + ATF_TP_ADD_TC(tp, tanh_zero_pos); + + ATF_TP_ADD_TC(tp, tanhf_nan); + ATF_TP_ADD_TC(tp, tanhf_inf_neg); + ATF_TP_ADD_TC(tp, tanhf_inf_pos); + ATF_TP_ADD_TC(tp, tanhf_zero_neg); + ATF_TP_ADD_TC(tp, tanhf_zero_pos); + + return atf_no_error(); +} |
