1 // -*- C++ -*-
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 // UNSUPPORTED: c++03, c++11, c++14
11 
12 // <variant>
13 
14 // struct monostate {};
15 
16 #include <type_traits>
17 #include <variant>
18 
19 #include "test_macros.h"
20 
main(int,char **)21 int 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