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40 lines
1.0 KiB
C++
40 lines
1.0 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// UNSUPPORTED: libcpp-has-no-threads
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// <thread>
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// template <class T>
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// struct hash
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// : public unary_function<T, size_t>
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// {
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// size_t operator()(T val) const;
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// };
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// Not very portable
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#include <thread>
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#include <cassert>
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#include "test_macros.h"
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int main(int, char**)
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{
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std::thread::id id1;
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std::thread::id id2 = std::this_thread::get_id();
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typedef std::hash<std::thread::id> H;
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static_assert((std::is_same<typename H::argument_type, std::thread::id>::value), "" );
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static_assert((std::is_same<typename H::result_type, std::size_t>::value), "" );
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ASSERT_NOEXCEPT(H()(id2));
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H h;
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assert(h(id1) != h(id2));
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return 0;
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}
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