| //===----------------------------------------------------------------------===// |
| // |
| // 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: libcpp-has-no-threads |
| // UNSUPPORTED: c++98, c++03 |
| |
| // <future> |
| |
| // template<class R, class... ArgTypes> |
| // class packaged_task<R(ArgTypes...)> |
| // { |
| // public: |
| // typedef R result_type; // extension |
| |
| // This is a libc++ extension. |
| |
| #include <future> |
| #include <type_traits> |
| |
| struct A {}; |
| |
| int main(int, char**) |
| { |
| static_assert((std::is_same<std::packaged_task<A(int, char)>::result_type, A>::value), ""); |
| |
| return 0; |
| } |
