forked from OSchip/llvm-project
42 lines
1008 B
C++
42 lines
1008 B
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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// <functional>
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// struct is_placeholder
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#include <functional>
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template <int Expected, class T>
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void
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test(const T&)
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{
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static_assert(std::is_placeholder<T>::value == Expected, "");
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}
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struct C {};
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int main()
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{
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test<1>(std::placeholders::_1);
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test<2>(std::placeholders::_2);
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test<3>(std::placeholders::_3);
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test<4>(std::placeholders::_4);
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test<5>(std::placeholders::_5);
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test<6>(std::placeholders::_6);
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test<7>(std::placeholders::_7);
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test<8>(std::placeholders::_8);
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test<9>(std::placeholders::_9);
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test<10>(std::placeholders::_10);
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test<0>(4);
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test<0>(5.5);
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test<0>('a');
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test<0>(C());
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}
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