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, c++17, c++20 10 11 // constexpr unexpected(unexpected&&) = default; 12 13 #include <cassert> 14 #include <expected> 15 #include <utility> 16 17 struct Error { 18 int i; 19 constexpr Error(int ii) : i(ii) {} 20 constexpr Error(Error&& other) : i(other.i) {other.i = 0;} 21 }; 22 23 constexpr bool test() { 24 std::unexpected<Error> unex(5); 25 auto unex2 = std::move(unex); 26 assert(unex2.error().i == 5); 27 assert(unex.error().i == 0); 28 return true; 29 } 30 31 int main(int, char**) { 32 test(); 33 static_assert(test()); 34 return 0; 35 } 36