| 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 | // type_traits |
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| 10 | |
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| 11 | // bool_constant |
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| 12 | |
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| 13 | #include <type_traits> |
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| 14 | #include <cassert> |
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| 15 | |
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| 16 | #include "test_macros.h" |
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| 17 | |
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| 18 | int main(int, char**) |
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| 19 | { |
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| 20 | #if TEST_STD_VER > 14 |
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| 21 | typedef std::bool_constant<true> _t; |
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| 22 | static_assert(_t::value, "" ); |
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| 23 | static_assert((std::is_same<_t::value_type, bool>::value), "" ); |
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| 24 | static_assert((std::is_same<_t::type, _t>::value), "" ); |
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| 25 | static_assert((_t() == true), "" ); |
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| 26 | |
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| 27 | typedef std::bool_constant<false> _f; |
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| 28 | static_assert(!_f::value, "" ); |
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| 29 | static_assert((std::is_same<_f::value_type, bool>::value), "" ); |
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| 30 | static_assert((std::is_same<_f::type, _f>::value), "" ); |
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| 31 | static_assert((_f() == false), "" ); |
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| 32 | #endif |
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| 33 | |
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| 34 | return 0; |
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| 35 | } |
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| 36 | |
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