1 | /* Test stdc_leading_ones functions and macros. |
2 | Copyright (C) 2024 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 <tst-stdbit.h> |
20 | |
21 | static const struct stdbit_test inputs[] = |
22 | { |
23 | { 0ULL, 0, 0, 0, 0 }, |
24 | { 0x1ULL, 0, 0, 0, 0 }, |
25 | { 0x2ULL, 0, 0, 0, 0 }, |
26 | { 0x3ULL, 0, 0, 0, 0 }, |
27 | { 0x4ULL, 0, 0, 0, 0 }, |
28 | { 0x5ULL, 0, 0, 0, 0 }, |
29 | { 0x6ULL, 0, 0, 0, 0 }, |
30 | { 0x7ULL, 0, 0, 0, 0 }, |
31 | { 0x8ULL, 0, 0, 0, 0 }, |
32 | { 0x9ULL, 0, 0, 0, 0 }, |
33 | { 0xaULL, 0, 0, 0, 0 }, |
34 | { 0xbULL, 0, 0, 0, 0 }, |
35 | { 0xcULL, 0, 0, 0, 0 }, |
36 | { 0xdULL, 0, 0, 0, 0 }, |
37 | { 0xeULL, 0, 0, 0, 0 }, |
38 | { 0xfULL, 0, 0, 0, 0 }, |
39 | { 0x10ULL, 0, 0, 0, 0 }, |
40 | { 0x11ULL, 0, 0, 0, 0 }, |
41 | { 0x12ULL, 0, 0, 0, 0 }, |
42 | { 0x1fULL, 0, 0, 0, 0 }, |
43 | { 0x20ULL, 0, 0, 0, 0 }, |
44 | { 0x7fULL, 0, 0, 0, 0 }, |
45 | { 0x80ULL, 1, 0, 0, 0 }, |
46 | { 0x81ULL, 1, 0, 0, 0 }, |
47 | { 0x9aULL, 1, 0, 0, 0 }, |
48 | { 0xf3ULL, 4, 0, 0, 0 }, |
49 | { 0xffULL, 8, 0, 0, 0 }, |
50 | { 0x100ULL, 0, 0, 0, 0 }, |
51 | { 0x101ULL, 0, 0, 0, 0 }, |
52 | { 0x102ULL, 0, 0, 0, 0 }, |
53 | { 0x1feULL, 7, 0, 0, 0 }, |
54 | { 0x1ffULL, 8, 0, 0, 0 }, |
55 | { 0x200ULL, 0, 0, 0, 0 }, |
56 | { 0x234ULL, 0, 0, 0, 0 }, |
57 | { 0x4567ULL, 0, 0, 0, 0 }, |
58 | { 0x7fffULL, 8, 0, 0, 0 }, |
59 | { 0x8000ULL, 0, 1, 0, 0 }, |
60 | { 0x8001ULL, 0, 1, 0, 0 }, |
61 | { 0xfffeULL, 7, 15, 0, 0 }, |
62 | { 0xffffULL, 8, 16, 0, 0 }, |
63 | { 0x10000ULL, 0, 0, 0, 0 }, |
64 | { 0x10001ULL, 0, 0, 0, 0 }, |
65 | { 0xfedcba98ULL, 1, 1, 7, 0 }, |
66 | { 0xfffffefeULL, 7, 7, 23, 0 }, |
67 | { 0xffffffffULL, 8, 16, 32, 0 }, |
68 | { 0x100000000ULL, 0, 0, 0, 0 }, |
69 | { 0x100000001ULL, 0, 0, 0, 0 }, |
70 | { 0x123456789ULL, 1, 0, 0, 0 }, |
71 | { 0x123456789abcdefULL, 3, 2, 1, 0 }, |
72 | { 0x789abcdef0123456ULL, 0, 0, 4, 0 }, |
73 | { 0x8000000000000000ULL, 0, 0, 0, 1 }, |
74 | { 0x8000000000000001ULL, 0, 0, 0, 1 }, |
75 | { 0xfffffffffffffffeULL, 7, 15, 31, 63 }, |
76 | { 0xffffffffffffffffULL, 8, 16, 32, 64 }, |
77 | }; |
78 | |
79 | TEST_STDBIT_UI_TOPLEVEL (stdc_leading_ones); |
80 | |
81 | static int |
82 | do_test (void) |
83 | { |
84 | TEST_STDBIT_UI (stdc_leading_ones, inputs); |
85 | return 0; |
86 | } |
87 | |
88 | #include <support/test-driver.c> |
89 | |