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38 lines
1.5 KiB
C++
38 lines
1.5 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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// UNSUPPORTED: c++98, c++03, c++11, c++14
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// template <class _Tp> using __is_inplace_index
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#include <utility>
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#include "test_macros.h"
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struct S {};
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int main(int, char**) {
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using I = std::in_place_index_t<0>;
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static_assert( std::__is_inplace_index<I>::value, "");
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static_assert( std::__is_inplace_index<const I>::value, "");
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static_assert( std::__is_inplace_index<const volatile I>::value, "");
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static_assert( std::__is_inplace_index<I&>::value, "");
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static_assert( std::__is_inplace_index<const I&>::value, "");
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static_assert( std::__is_inplace_index<const volatile I&>::value, "");
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static_assert( std::__is_inplace_index<I&&>::value, "");
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static_assert( std::__is_inplace_index<const I&&>::value, "");
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static_assert( std::__is_inplace_index<const volatile I&&>::value, "");
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static_assert(!std::__is_inplace_index<std::in_place_type_t<int>>::value, "");
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static_assert(!std::__is_inplace_index<std::in_place_t>::value, "");
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static_assert(!std::__is_inplace_index<void>::value, "");
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static_assert(!std::__is_inplace_index<int>::value, "");
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static_assert(!std::__is_inplace_index<S>::value, "");
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return 0;
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}
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