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35 lines
1.4 KiB
C++
35 lines
1.4 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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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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struct S {};
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int main() {
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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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}
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