| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| |
| // <thread> |
| |
| // template <class T> |
| // struct hash |
| // : public unary_function<T, size_t> |
| // { |
| // size_t operator()(T val) const; |
| // }; |
| |
| // Not very portable |
| |
| #include <thread> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| int main(int, char**) |
| { |
| std::thread::id id1; |
| std::thread::id id2 = std::this_thread::get_id(); |
| typedef std::hash<std::thread::id> H; |
| static_assert((std::is_same<typename H::argument_type, std::thread::id>::value), "" ); |
| static_assert((std::is_same<typename H::result_type, std::size_t>::value), "" ); |
| ASSERT_NOEXCEPT(H()(id2)); |
| H h; |
| assert(h(id1) != h(id2)); |
| |
| return 0; |
| } |