2 Copyright (C) 1997-2021 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
19 #include "libm-test-driver.c"
21 static const struct test_c_f_data carg_test_data[] =
23 /* carg (x + iy) is specified as atan2 (y, x) */
25 /* carg (inf + i y) == +0 for finite y > 0. */
26 TEST_c_f (carg, plus_infty, 2.0, 0),
28 /* carg (inf + i y) == -0 for finite y < 0. */
29 TEST_c_f (carg, plus_infty, -2.0, minus_zero),
31 /* carg(x + i inf) == pi/2 for finite x. */
32 TEST_c_f (carg, 10.0, plus_infty, lit_pi_2_d),
34 /* carg(x - i inf) == -pi/2 for finite x. */
35 TEST_c_f (carg, 10.0, minus_infty, -lit_pi_2_d),
37 /* carg (-inf + i y) == +pi for finite y > 0. */
38 TEST_c_f (carg, minus_infty, 10.0, lit_pi),
40 /* carg (-inf + i y) == -pi for finite y < 0. */
41 TEST_c_f (carg, minus_infty, -10.0, -lit_pi),
43 TEST_c_f (carg, plus_infty, plus_infty, lit_pi_4_d),
45 TEST_c_f (carg, plus_infty, minus_infty, -lit_pi_4_d),
47 TEST_c_f (carg, minus_infty, plus_infty, lit_pi_3_m_4_d),
49 TEST_c_f (carg, minus_infty, minus_infty, -lit_pi_3_m_4_d),
51 TEST_c_f (carg, qnan_value, qnan_value, qnan_value),
53 AUTO_TESTS_c_f (carg),
59 ALL_RM_TEST (carg, 0, carg_test_data, RUN_TEST_LOOP_c_f, END);