933afa9761
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@185597 91177308-0d34-0410-b5e6-96231b3b80d8
75 lines
1.4 KiB
C++
75 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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// type_traits
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// is_copy_assignable
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#include <type_traits>
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template <class T>
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void test_is_copy_assignable()
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{
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static_assert(( std::is_copy_assignable<T>::value), "");
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}
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template <class T>
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void test_is_not_copy_assignable()
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{
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static_assert((!std::is_copy_assignable<T>::value), "");
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}
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class Empty
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{
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};
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class NotEmpty
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{
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public:
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virtual ~NotEmpty();
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};
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union Union {};
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struct bit_zero
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{
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int : 0;
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};
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struct A
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{
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A();
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};
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class B
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{
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B& operator=(const B&);
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};
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int main()
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{
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test_is_copy_assignable<int> ();
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test_is_copy_assignable<int&> ();
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test_is_copy_assignable<A> ();
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test_is_copy_assignable<bit_zero> ();
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test_is_copy_assignable<Union> ();
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test_is_copy_assignable<NotEmpty> ();
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test_is_copy_assignable<Empty> ();
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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test_is_not_copy_assignable<const int> ();
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test_is_not_copy_assignable<int[]> ();
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test_is_not_copy_assignable<int[3]> ();
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#endif
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#if __has_feature(cxx_access_control_sfinae)
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test_is_not_copy_assignable<B> ();
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#endif
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test_is_not_copy_assignable<void> ();
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}
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