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1 | /* Test logb. | |
2 | Copyright (C) 1997-2019 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 | ||
21 | static const struct test_f_f_data logb_test_data[] = | |
22 | { | |
23 | TEST_f_f (logb, plus_infty, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
24 | TEST_f_f (logb, minus_infty, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
25 | ||
26 | /* Bug 6793: errno setting may be missing. */ | |
27 | TEST_f_f (logb, 0, minus_infty, NO_INEXACT_EXCEPTION|DIVIDE_BY_ZERO_EXCEPTION), | |
28 | ||
29 | TEST_f_f (logb, minus_zero, minus_infty, NO_INEXACT_EXCEPTION|DIVIDE_BY_ZERO_EXCEPTION), | |
30 | TEST_f_f (logb, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
31 | TEST_f_f (logb, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
32 | TEST_f_f (logb, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION), | |
33 | TEST_f_f (logb, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION), | |
34 | ||
35 | TEST_f_f (logb, 1, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
36 | TEST_f_f (logb, lit_e, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
37 | TEST_f_f (logb, 1024, 10, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
38 | TEST_f_f (logb, -2000, 10, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
39 | ||
40 | TEST_f_f (logb, min_subnorm_value, MIN_EXP-MANT_DIG, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
41 | TEST_f_f (logb, -min_subnorm_value, MIN_EXP-MANT_DIG, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
42 | TEST_f_f (logb, min_value, MIN_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
43 | TEST_f_f (logb, -min_value, MIN_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
44 | TEST_f_f (logb, max_value, MAX_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
45 | TEST_f_f (logb, -max_value, MAX_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
46 | ||
47 | TEST_f_f (logb, 0x0.1p-127, -131, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
48 | TEST_f_f (logb, 0x0.01p-127, -135, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
49 | TEST_f_f (logb, 0x0.011p-127, -135, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
50 | #if !TEST_COND_binary32 | |
51 | TEST_f_f (logb, 0x0.8p-1022, -1023, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
52 | TEST_f_f (logb, 0x0.1p-1022, -1026, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
53 | TEST_f_f (logb, 0x0.00111p-1022, -1034, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
54 | TEST_f_f (logb, 0x0.00001p-1022, -1042, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
55 | TEST_f_f (logb, 0x0.000011p-1022, -1042, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
56 | TEST_f_f (logb, 0x0.0000000000001p-1022, -1074, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
57 | #endif | |
58 | #if MIN_EXP - MANT_DIG <= -16400 | |
59 | TEST_f_f (logb, 0x1p-16400L, -16400, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
60 | TEST_f_f (logb, 0x.00000000001p-16382L, -16426, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
61 | #endif | |
62 | ||
63 | #if MANT_DIG >= 57 | |
64 | TEST_f_f (logb, 0x1.ffffffffffffffp1L, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
65 | TEST_f_f (logb, -0x1.ffffffffffffffp1L, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
66 | #endif | |
67 | }; | |
68 | ||
69 | static void | |
70 | logb_test (void) | |
71 | { | |
72 | ALL_RM_TEST (logb, 1, logb_test_data, RUN_TEST_LOOP_f_f, END); | |
73 | } | |
74 | ||
75 | static void | |
76 | do_test (void) | |
77 | { | |
78 | logb_test (); | |
79 | } | |
80 | ||
81 | /* | |
82 | * Local Variables: | |
83 | * mode:c | |
84 | * End: | |
85 | */ |