1
2//===----------------------------------------------------------------------===//
3//
4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5// See https://llvm.org/LICENSE.txt for license information.
6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7//
8//===----------------------------------------------------------------------===//
9
10// REQUIRES: std-at-least-c++26
11
12// <utility>
13
14// struct monostate {};
15
16#include <type_traits>
17#include <utility>
18
19#include "test_macros.h"
20
21int main(int, char**) {
22 using M = std::monostate;
23 static_assert(std::is_trivially_default_constructible<M>::value, "");
24 static_assert(std::is_trivially_copy_constructible<M>::value, "");
25 static_assert(std::is_trivially_copy_assignable<M>::value, "");
26 static_assert(std::is_trivially_destructible<M>::value, "");
27 constexpr M m{};
28 ((void)m);
29
30 return 0;
31}
32

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source code of libcxx/test/std/utilities/utility/utility.monostate/monostate.pass.cpp