1 | //===----------------------------------------------------------------------===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | // |
9 | // UNSUPPORTED: no-threads |
10 | // UNSUPPORTED: c++03, c++11, c++14, c++17 |
11 | |
12 | // struct nostopstate_t { |
13 | // explicit nostopstate_t() = default; |
14 | // }; |
15 | // |
16 | // inline constexpr nostopstate_t nostopstate{}; |
17 | |
18 | #include <concepts> |
19 | #include <stop_token> |
20 | #include <type_traits> |
21 | |
22 | #include "test_macros.h" |
23 | |
24 | static_assert(std::is_trivially_default_constructible_v<std::nostopstate_t>); |
25 | |
26 | struct Empty {}; |
27 | static_assert(sizeof(Empty) == sizeof(std::nostopstate_t)); |
28 | |
29 | template <class T> |
30 | void conversionTest(T); |
31 | |
32 | template <class T> |
33 | concept ImplicitlyDefaultConstructible = requires { conversionTest<T>({}); }; |
34 | static_assert(!ImplicitlyDefaultConstructible<std::nostopstate_t>); |
35 | |
36 | int main(int, char**) { |
37 | [[maybe_unused]] std::same_as<std::nostopstate_t> auto x = std::nostopstate; |
38 | [[maybe_unused]] auto y = std::nostopstate_t{}; |
39 | |
40 | return 0; |
41 | } |
42 | |