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//===----------------------------------------------------------------------===//
// 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
// SPDX-FileCopyrightText: Copyright (c) 2023 NVIDIA CORPORATION & AFFILIATES.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
// constexpr unexpected& operator=(const unexpected&) = default;
#include <cassert>
#include <expected>
struct Error {
int i;
constexpr Error(int ii) : i(ii) {}
};
constexpr bool test() {
std::unexpected<Error> unex1(4);
const std::unexpected<Error> unex2(5);
unex1 = unex2;
assert(unex1.error().i == 5);
return true;
}
int main(int, char**) {
test();
static_assert(test());
return 0;
}
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