Add test for type properties of std::reference_wrapper
llvm-svn: 221224
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//===----------------------------------------------------------------------===//
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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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// reference_wrapper
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// Test that reference wrapper meets the requirements of TriviallyCopyable,
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// CopyConstructible and CopyAssignable.
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#include <functional>
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#include <type_traits>
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int main()
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{
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typedef std::reference_wrapper<int> T;
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static_assert(std::is_copy_constructible<T>::value, "");
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static_assert(std::is_copy_assignable<T>::value, "");
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// Extension up for standardization: See N4151.
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static_assert(std::is_trivially_copyable<T>::value, "");
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}
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