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: c++03, c++11, c++14 10 11 // <variant> 12 13 // struct monostate {}; 14 15 #include <type_traits> 16 #include <variant> 17 18 #include "test_macros.h" 19 main(int,char **)20int main(int, char**) { 21 using M = std::monostate; 22 static_assert(std::is_trivially_default_constructible<M>::value, ""); 23 static_assert(std::is_trivially_copy_constructible<M>::value, ""); 24 static_assert(std::is_trivially_copy_assignable<M>::value, ""); 25 static_assert(std::is_trivially_destructible<M>::value, ""); 26 constexpr M m{}; 27 ((void)m); 28 29 return 0; 30 } 31