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1 | /* Test ilogb. | |
2 | Copyright (C) 1997-2017 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 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | static const struct test_f_i_data ilogb_test_data[] = | |
20 | { | |
21 | TEST_f_i (ilogb, 1, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
22 | TEST_f_i (ilogb, lit_e, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
23 | TEST_f_i (ilogb, 1024, 10, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
24 | TEST_f_i (ilogb, -2000, 10, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
25 | TEST_f_i (ilogb, 0.5, -1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED); | |
26 | TEST_f_i (ilogb, -0.5, -1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED); | |
27 | ||
28 | #if MANT_DIG >= 57 | |
29 | TEST_f_i (ilogb, 0x1.ffffffffffffffp1L, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
30 | TEST_f_i (ilogb, -0x1.ffffffffffffffp1L, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), | |
31 | #endif | |
32 | ||
33 | TEST_f_i (ilogb, min_subnorm_value, MIN_EXP-MANT_DIG, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED); | |
34 | TEST_f_i (ilogb, -min_subnorm_value, MIN_EXP-MANT_DIG, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED); | |
35 | TEST_f_i (ilogb, min_value, MIN_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED); | |
36 | TEST_f_i (ilogb, -min_value, MIN_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED); | |
37 | TEST_f_i (ilogb, max_value, MAX_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED); | |
38 | TEST_f_i (ilogb, -max_value, MAX_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED); | |
39 | ||
40 | /* ilogb (0.0) == FP_ILOGB0 plus invalid exception */ | |
41 | TEST_f_i (ilogb, 0.0, FP_ILOGB0, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM), | |
42 | TEST_f_i (ilogb, -0.0, FP_ILOGB0, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM), | |
43 | /* ilogb (qNaN) == FP_ILOGBNAN plus invalid exception */ | |
44 | TEST_f_i (ilogb, qnan_value, FP_ILOGBNAN, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM), | |
45 | TEST_f_i (ilogb, -qnan_value, FP_ILOGBNAN, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM), | |
46 | TEST_f_i (ilogb, snan_value, FP_ILOGBNAN, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM), | |
47 | TEST_f_i (ilogb, -snan_value, FP_ILOGBNAN, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM), | |
48 | /* ilogb (inf) == INT_MAX plus invalid exception */ | |
49 | TEST_f_i (ilogb, plus_infty, INT_MAX, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM), | |
50 | /* ilogb (-inf) == INT_MAX plus invalid exception */ | |
51 | TEST_f_i (ilogb, minus_infty, INT_MAX, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM), | |
52 | }; | |
53 | ||
54 | static void | |
55 | ilogb_test (void) | |
56 | { | |
57 | ALL_RM_TEST (ilogb, 1, ilogb_test_data, RUN_TEST_LOOP_f_i, END); | |
58 | } | |
59 | ||
60 | /* | |
61 | * Local Variables: | |
62 | * mode:c | |
63 | * End: | |
64 | */ |