1/* Test frexp.
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_f_f1_data frexp_test_data[] =
22  {
23    TEST_fI_f1 (frexp, plus_infty, plus_infty, IGNORE, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
24    TEST_fI_f1 (frexp, minus_infty, minus_infty, IGNORE, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
25    TEST_fI_f1 (frexp, qnan_value, qnan_value, IGNORE, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
26    TEST_fI_f1 (frexp, -qnan_value, qnan_value, IGNORE, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
27    TEST_fI_f1 (frexp, snan_value, qnan_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
28    TEST_fI_f1 (frexp, -snan_value, qnan_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
29
30    TEST_fI_f1 (frexp, 0.0, 0.0, 0.0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
31    TEST_fI_f1 (frexp, minus_zero, minus_zero, 0.0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
32
33    TEST_fI_f1 (frexp, 12.8L, 0.8L, 4, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
34    TEST_fI_f1 (frexp, -27.34L, -0.854375L, 5, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
35    TEST_fI_f1 (frexp, 0.25L, 0.5L, -1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
36    TEST_fI_f1 (frexp, 0.5L, 0.5L, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
37    TEST_fI_f1 (frexp, 1.0L, 0.5L, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
38    TEST_fI_f1 (frexp, -1.0L, -0.5L, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
39    TEST_fI_f1 (frexp, 2.0L, 0.5L, 2, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
40    TEST_fI_f1 (frexp, 4.0L, 0.5L, 3, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
41    TEST_fI_f1 (frexp, 0x1p127L, 0.5L, 128, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
42    TEST_fI_f1 (frexp, -0x1p127L, -0.5L, 128, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
43    TEST_fI_f1 (frexp, 0x1p-126L, 0.5L, -125, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
44    TEST_fI_f1 (frexp, 0x1p-127L, 0.5L, -126, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
45    TEST_fI_f1 (frexp, 0x1p-149L, 0.5L, -148, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
46    TEST_fI_f1 (frexp, -0x1p-149L, -0.5L, -148, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
47#if !TEST_COND_binary32
48    TEST_fI_f1 (frexp, 0x1p1023L, 0.5L, 1024, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
49    TEST_fI_f1 (frexp, -0x1p1023L, -0.5L, 1024, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
50    TEST_fI_f1 (frexp, 0x1p-1022L, 0.5L, -1021, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
51    TEST_fI_f1 (frexp, 0x1p-1023L, 0.5L, -1022, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
52    TEST_fI_f1 (frexp, 0x1p-1074L, 0.5L, -1073, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
53    TEST_fI_f1 (frexp, -0x1p-1074L, -0.5L, -1073, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
54#endif
55#if MIN_EXP <= -16381
56    TEST_fI_f1 (frexp, 0x1p16383L, 0.5L, 16384, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
57    TEST_fI_f1 (frexp, -0x1p16383L, -0.5L, 16384, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
58    TEST_fI_f1 (frexp, 0x1p-16382L, 0.5L, -16381, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
59    TEST_fI_f1 (frexp, 0x1p-16383L, 0.5L, -16382, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
60    TEST_fI_f1 (frexp, 0x1p-16445L, 0.5L, -16444, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
61    TEST_fI_f1 (frexp, -0x1p-16445L, -0.5L, -16444, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
62# if MANT_DIG >= 113
63    TEST_fI_f1 (frexp, 0x1p-16494L, 0.5L, -16493, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
64    TEST_fI_f1 (frexp, -0x1p-16494L, -0.5L, -16493, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
65# endif
66#endif
67
68#if MANT_DIG >= 106
69    TEST_fI_f1 (frexp, 1.0L - 0x1p-106L, 1.0L - 0x1p-106L, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
70    TEST_fI_f1 (frexp, 1.0L, 0.5L, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
71    TEST_fI_f1 (frexp, 1.0L + 0x1p-105L, 0.5L + 0x1p-106L, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
72    TEST_fI_f1 (frexp, -1.0L + 0x1p-106L, -1.0L + 0x1p-106L, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
73    TEST_fI_f1 (frexp, -1.0L, -0.5L, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
74    TEST_fI_f1 (frexp, -1.0L - 0x1p-105L, -0.5L - 0x1p-106L, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
75#endif
76  };
77
78static void
79frexp_test (void)
80{
81  int x;
82
83  ALL_RM_TEST (frexp, 1, frexp_test_data, RUN_TEST_LOOP_fI_f1, END, x);
84}
85
86static void
87do_test (void)
88{
89  frexp_test ();
90}
91
92/*
93 * Local Variables:
94 * mode:c
95 * End:
96 */
97