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1 | // Copyright (C) 2019-2024 Free Software Foundation, Inc. | |
2 | // | |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
18 | // { dg-do compile { target c++20 } } | |
19 | ||
20 | #include <concepts> | |
21 | ||
22 | // unsigned integer types | |
23 | static_assert( std::unsigned_integral<unsigned char> ); | |
24 | static_assert( std::unsigned_integral<unsigned short> ); | |
25 | static_assert( std::unsigned_integral<unsigned int> ); | |
26 | static_assert( std::unsigned_integral<unsigned long> ); | |
27 | static_assert( std::unsigned_integral<unsigned long long> ); | |
28 | ||
29 | // signed integer types | |
30 | static_assert( !std::unsigned_integral<signed char> ); | |
31 | static_assert( !std::unsigned_integral<signed short> ); | |
32 | static_assert( !std::unsigned_integral<signed int> ); | |
33 | static_assert( !std::unsigned_integral<signed long> ); | |
34 | static_assert( !std::unsigned_integral<signed long long> ); | |
35 | ||
36 | // other integral types | |
37 | static_assert( std::unsigned_integral<bool> ); | |
38 | static_assert( std::is_signed_v<char> ? true : std::unsigned_integral<char> ); | |
39 | static_assert( std::unsigned_integral<char16_t> ); | |
40 | static_assert( std::unsigned_integral<char32_t> ); | |
41 | static_assert( std::is_signed_v<wchar_t> ? true : std::unsigned_integral<wchar_t> ); | |
42 | #ifdef _GLIBCXX_USE_CHAR8_T | |
43 | static_assert( std::unsigned_integral<char8_t> ); | |
44 | #endif | |
45 | ||
46 | #ifdef __GLIBCXX_TYPE_INT_N_0 | |
47 | static_assert( !std::unsigned_integral<signed __GLIBCXX_TYPE_INT_N_0> ); | |
48 | static_assert( std::unsigned_integral<unsigned __GLIBCXX_TYPE_INT_N_0> ); | |
49 | #endif | |
50 | ||
51 | static_assert( !std::unsigned_integral<void> ); | |
52 | static_assert( !std::unsigned_integral<float> ); | |
53 | static_assert( !std::unsigned_integral<unsigned&> ); | |
54 | static_assert( !std::unsigned_integral<unsigned&> ); | |
55 | static_assert( !std::unsigned_integral<unsigned&&> ); | |
56 | static_assert( !std::unsigned_integral<const unsigned&> ); | |
57 | static_assert( !std::unsigned_integral<unsigned[]> ); | |
58 | static_assert( !std::unsigned_integral<unsigned[2]> ); | |
59 | static_assert( !std::unsigned_integral<unsigned()> ); | |
60 | static_assert( !std::unsigned_integral<unsigned(*)()> ); | |
61 | static_assert( !std::unsigned_integral<unsigned(&)()> ); | |
62 | ||
63 | enum E { }; | |
64 | static_assert( !std::unsigned_integral<E> ); | |
65 | enum class CE { }; | |
66 | static_assert( !std::unsigned_integral<CE> ); | |
67 | struct A { }; | |
68 | static_assert( !std::unsigned_integral<A> ); | |
69 | union B { }; | |
70 | static_assert( !std::unsigned_integral<B> ); |