1/* Test carg.
2   Copyright (C) 1997-2022 Free Software Foundation, Inc.
3   This file is part of the GNU C Library.
4
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.
9
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.
14
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/>.  */
18
19#include "libm-test-driver.c"
20
21static const struct test_c_f_data carg_test_data[] =
22  {
23    /* carg (x + iy) is specified as atan2 (y, x) */
24
25    /* carg (inf + i y) == +0 for finite y > 0.  */
26    TEST_c_f (carg, plus_infty, 2.0, 0),
27
28    /* carg (inf + i y) == -0 for finite y < 0.  */
29    TEST_c_f (carg, plus_infty, -2.0, minus_zero),
30
31    /* carg(x + i inf) == pi/2 for finite x.  */
32    TEST_c_f (carg, 10.0, plus_infty, lit_pi_2_d),
33
34    /* carg(x - i inf) == -pi/2 for finite x.  */
35    TEST_c_f (carg, 10.0, minus_infty, -lit_pi_2_d),
36
37    /* carg (-inf + i y) == +pi for finite y > 0.  */
38    TEST_c_f (carg, minus_infty, 10.0, lit_pi),
39
40    /* carg (-inf + i y) == -pi for finite y < 0.  */
41    TEST_c_f (carg, minus_infty, -10.0, -lit_pi),
42
43    TEST_c_f (carg, plus_infty, plus_infty, lit_pi_4_d),
44
45    TEST_c_f (carg, plus_infty, minus_infty, -lit_pi_4_d),
46
47    TEST_c_f (carg, minus_infty, plus_infty, lit_pi_3_m_4_d),
48
49    TEST_c_f (carg, minus_infty, minus_infty, -lit_pi_3_m_4_d),
50
51    TEST_c_f (carg, qnan_value, qnan_value, qnan_value),
52
53    AUTO_TESTS_c_f (carg),
54  };
55
56static void
57carg_test (void)
58{
59  ALL_RM_TEST (carg, 0, carg_test_data, RUN_TEST_LOOP_c_f, END);
60}
61
62static void
63do_test (void)
64{
65  carg_test ();
66}
67
68/*
69 * Local Variables:
70 * mode:c
71 * End:
72 */
73