| //===----------------------------------------------------------------------===// |
| // 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 |
| |
| // template<class E> unexpected(E) -> unexpected<E>; |
| |
| #include <concepts> |
| #include <expected> |
| |
| struct Foo{}; |
| |
| static_assert(std::same_as<decltype(std::unexpected(5)), std::unexpected<int>>); |
| static_assert(std::same_as<decltype(std::unexpected(Foo{})), std::unexpected<Foo>>); |
| static_assert(std::same_as<decltype(std::unexpected(std::unexpected<int>(5))), std::unexpected<int>>); |