Louis Dionne 6a54dfbfe5 [libc++][NFC] Add missing license headers
Also standardize the license comment in several files where it was
different from what we normally do.
2024-07-31 12:58:09 -04:00

41 lines
991 B
C++

//===----------------------------------------------------------------------===//
//
// 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& operator=(unexpected&&) = default;
#include <cassert>
#include <expected>
#include <utility>
struct Error {
int i;
constexpr Error(int ii) : i(ii) {}
constexpr Error& operator=(Error&& other) {
i = other.i;
other.i = 0;
return *this;
}
};
constexpr bool test() {
std::unexpected<Error> unex1(4);
std::unexpected<Error> unex2(5);
unex1 = std::move(unex2);
assert(unex1.error().i == 5);
assert(unex2.error().i == 0);
return true;
}
int main(int, char**) {
test();
static_assert(test());
return 0;
}