//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
// constexpr unexpected(const unexpected&) = default;
#include <cassert>
#include <expected>
struct Error {
int i;
constexpr Error(int ii) : i(ii) {}
};
constexpr bool test() {
const std::unexpected<Error> unex(5);
auto unex2 = unex;
assert(unex2.error().i == 5);
return true;
}
int main(int, char**) {
test();
static_assert(test());
return 0;
}