1/* Test <stdbit.h> type-generic macros with -Wconversion.
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 <stdbit.h>
20#include <support/check.h>
21
22unsigned char uc;
23unsigned short us;
24unsigned int ui;
25unsigned long int ul;
26unsigned long long int ull;
27
28static int
29do_test (void)
30{
31 /* The main point of this test is the compile-time test that there
32 are no -Wconversion warnings from the type-generic macros, not
33 the runtime execution of those macros. */
34 (void) stdc_leading_zeros (uc);
35 (void) stdc_leading_zeros (us);
36 (void) stdc_leading_zeros (ui);
37 (void) stdc_leading_zeros (ul);
38 (void) stdc_leading_zeros (ull);
39 (void) stdc_leading_ones (uc);
40 (void) stdc_leading_ones (us);
41 (void) stdc_leading_ones (ui);
42 (void) stdc_leading_ones (ul);
43 (void) stdc_leading_ones (ull);
44 (void) stdc_trailing_zeros (uc);
45 (void) stdc_trailing_zeros (us);
46 (void) stdc_trailing_zeros (ui);
47 (void) stdc_trailing_zeros (ul);
48 (void) stdc_trailing_zeros (ull);
49 (void) stdc_trailing_ones (uc);
50 (void) stdc_trailing_ones (us);
51 (void) stdc_trailing_ones (ui);
52 (void) stdc_trailing_ones (ul);
53 (void) stdc_trailing_ones (ull);
54 (void) stdc_first_leading_zero (uc);
55 (void) stdc_first_leading_zero (us);
56 (void) stdc_first_leading_zero (ui);
57 (void) stdc_first_leading_zero (ul);
58 (void) stdc_first_leading_zero (ull);
59 (void) stdc_first_leading_one (uc);
60 (void) stdc_first_leading_one (us);
61 (void) stdc_first_leading_one (ui);
62 (void) stdc_first_leading_one (ul);
63 (void) stdc_first_leading_one (ull);
64 (void) stdc_first_trailing_zero (uc);
65 (void) stdc_first_trailing_zero (us);
66 (void) stdc_first_trailing_zero (ui);
67 (void) stdc_first_trailing_zero (ul);
68 (void) stdc_first_trailing_zero (ull);
69 (void) stdc_first_trailing_one (uc);
70 (void) stdc_first_trailing_one (us);
71 (void) stdc_first_trailing_one (ui);
72 (void) stdc_first_trailing_one (ul);
73 (void) stdc_first_trailing_one (ull);
74 (void) stdc_count_zeros (uc);
75 (void) stdc_count_zeros (us);
76 (void) stdc_count_zeros (ui);
77 (void) stdc_count_zeros (ul);
78 (void) stdc_count_zeros (ull);
79 (void) stdc_count_ones (uc);
80 (void) stdc_count_ones (us);
81 (void) stdc_count_ones (ui);
82 (void) stdc_count_ones (ul);
83 (void) stdc_count_ones (ull);
84 (void) stdc_has_single_bit (uc);
85 (void) stdc_has_single_bit (us);
86 (void) stdc_has_single_bit (ui);
87 (void) stdc_has_single_bit (ul);
88 (void) stdc_has_single_bit (ull);
89 (void) stdc_bit_width (uc);
90 (void) stdc_bit_width (us);
91 (void) stdc_bit_width (ui);
92 (void) stdc_bit_width (ul);
93 (void) stdc_bit_width (ull);
94 (void) stdc_bit_floor (uc);
95 (void) stdc_bit_floor (us);
96 (void) stdc_bit_floor (ui);
97 (void) stdc_bit_floor (ul);
98 (void) stdc_bit_floor (ull);
99 (void) stdc_bit_ceil (uc);
100 (void) stdc_bit_ceil (us);
101 (void) stdc_bit_ceil (ui);
102 (void) stdc_bit_ceil (ul);
103 (void) stdc_bit_ceil (ull);
104 return 0;
105}
106
107#include <support/test-driver.c>
108

source code of glibc/stdlib/tst-stdbit-Wconversion.c