| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // UNSUPPORTED: no-threads |
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| 10 | |
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| 11 | // <thread> |
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| 12 | |
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| 13 | // template <class T> |
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| 14 | // struct hash |
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| 15 | // { |
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| 16 | // size_t operator()(T val) const; |
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| 17 | // }; |
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| 18 | |
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| 19 | // Not very portable |
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| 20 | |
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| 21 | #include <cassert> |
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| 22 | #include <functional> |
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| 23 | #include <thread> |
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| 24 | |
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| 25 | #include "test_macros.h" |
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| 26 | |
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| 27 | int main(int, char**) |
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| 28 | { |
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| 29 | std::thread::id id1; |
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| 30 | std::thread::id id2 = std::this_thread::get_id(); |
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| 31 | typedef std::hash<std::thread::id> H; |
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| 32 | #if TEST_STD_VER <= 14 |
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| 33 | static_assert((std::is_same<typename H::argument_type, std::thread::id>::value), "" ); |
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| 34 | static_assert((std::is_same<typename H::result_type, std::size_t>::value), "" ); |
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| 35 | #endif |
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| 36 | ASSERT_NOEXCEPT(H()(id2)); |
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| 37 | H h; |
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| 38 | assert(h(id1) != h(id2)); |
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| 39 | |
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| 40 | return 0; |
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| 41 | } |
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| 42 | |
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