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5244527da1
As per C11 DR#471 (adjusted resolution accepted for C17), cacosh (0 + iNaN) should return NaN +/- i pi/2, not NaN + iNaN. This patch fixes the code accordingly. The test has hardcoded the result with positive sign of the imaginary part (with an associated comment), since the unspecified sign for a result other than 0 or infinity isn't currently supported by the test infrastructure. Tested for x86_64. [BZ #22561] * math/s_cacosh_template.c (M_DECL_FUNC (__cacosh)): Use pi/2 for real part of result for argument 0 + i * NaN. * math/libm-test-cacosh.inc (cacosh_test_data): Update expected results for tests of 0 + i * NaN.
88 lines
3.3 KiB
SQL
88 lines
3.3 KiB
SQL
/* Test cacosh.
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Copyright (C) 1997-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include "libm-test-driver.c"
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static const struct test_c_c_data cacosh_test_data[] =
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{
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TEST_c_c (cacosh, minus_infty, plus_infty, plus_infty, lit_pi_3_m_4_d),
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TEST_c_c (cacosh, minus_infty, minus_infty, plus_infty, -lit_pi_3_m_4_d),
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TEST_c_c (cacosh, plus_infty, plus_infty, plus_infty, lit_pi_4_d),
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TEST_c_c (cacosh, plus_infty, minus_infty, plus_infty, -lit_pi_4_d),
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TEST_c_c (cacosh, -10.0, plus_infty, plus_infty, lit_pi_2_d),
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TEST_c_c (cacosh, -10.0, minus_infty, plus_infty, -lit_pi_2_d),
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TEST_c_c (cacosh, 0, plus_infty, plus_infty, lit_pi_2_d),
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TEST_c_c (cacosh, 0, minus_infty, plus_infty, -lit_pi_2_d),
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TEST_c_c (cacosh, 0.1L, plus_infty, plus_infty, lit_pi_2_d),
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TEST_c_c (cacosh, 0.1L, minus_infty, plus_infty, -lit_pi_2_d),
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TEST_c_c (cacosh, minus_infty, 0, plus_infty, lit_pi),
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TEST_c_c (cacosh, minus_infty, minus_zero, plus_infty, -lit_pi),
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TEST_c_c (cacosh, minus_infty, 100, plus_infty, lit_pi),
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TEST_c_c (cacosh, minus_infty, -100, plus_infty, -lit_pi),
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TEST_c_c (cacosh, plus_infty, 0, plus_infty, 0.0),
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TEST_c_c (cacosh, plus_infty, minus_zero, plus_infty, minus_zero),
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TEST_c_c (cacosh, plus_infty, 0.5, plus_infty, 0.0),
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TEST_c_c (cacosh, plus_infty, -0.5, plus_infty, minus_zero),
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TEST_c_c (cacosh, plus_infty, qnan_value, plus_infty, qnan_value),
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TEST_c_c (cacosh, minus_infty, qnan_value, plus_infty, qnan_value),
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/* The sign of the imaginary part of the result is unspecified
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(see
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<http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2173.htm>),
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but the libm-test infrastructure does not support describing
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that. */
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TEST_c_c (cacosh, 0, qnan_value, qnan_value, lit_pi_2_d),
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TEST_c_c (cacosh, minus_zero, qnan_value, qnan_value, lit_pi_2_d),
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TEST_c_c (cacosh, qnan_value, plus_infty, plus_infty, qnan_value),
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TEST_c_c (cacosh, qnan_value, minus_infty, plus_infty, qnan_value),
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TEST_c_c (cacosh, 10.5, qnan_value, qnan_value, qnan_value, INVALID_EXCEPTION_OK),
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TEST_c_c (cacosh, -10.5, qnan_value, qnan_value, qnan_value, INVALID_EXCEPTION_OK),
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TEST_c_c (cacosh, qnan_value, 0.75, qnan_value, qnan_value, INVALID_EXCEPTION_OK),
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TEST_c_c (cacosh, qnan_value, -0.75, qnan_value, qnan_value, INVALID_EXCEPTION_OK),
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TEST_c_c (cacosh, qnan_value, qnan_value, qnan_value, qnan_value),
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AUTO_TESTS_c_c (cacosh),
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};
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static void
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cacosh_test (void)
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{
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ALL_RM_TEST (cacosh, 0, cacosh_test_data, RUN_TEST_LOOP_c_c, END_COMPLEX);
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}
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static void
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do_test (void)
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{
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cacosh_test ();
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}
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/*
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* Local Variables:
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* mode:c
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* End:
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*/
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