| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // type_traits |
| |
| // has_copy_constructor |
| |
| #include <type_traits> |
| |
| template <class T, bool Result> |
| void test_has_copy_constructor() |
| { |
| static_assert(std::has_copy_constructor<T>::value == Result, ""); |
| } |
| |
| class Empty |
| { |
| }; |
| |
| class NotEmpty |
| { |
| public: |
| virtual ~NotEmpty(); |
| }; |
| |
| union Union {}; |
| |
| struct bit_zero |
| { |
| int : 0; |
| }; |
| |
| class Abstract |
| { |
| public: |
| virtual ~Abstract() = 0; |
| }; |
| |
| struct A |
| { |
| A(const A&); |
| }; |
| |
| int main() |
| { |
| test_has_copy_constructor<char[3], false>(); |
| test_has_copy_constructor<char[], false>(); |
| test_has_copy_constructor<void, false>(); |
| test_has_copy_constructor<Abstract, false>(); |
| |
| test_has_copy_constructor<A, true>(); |
| test_has_copy_constructor<int&, true>(); |
| test_has_copy_constructor<Union, true>(); |
| test_has_copy_constructor<Empty, true>(); |
| test_has_copy_constructor<int, true>(); |
| test_has_copy_constructor<double, true>(); |
| test_has_copy_constructor<int*, true>(); |
| test_has_copy_constructor<const int*, true>(); |
| test_has_copy_constructor<NotEmpty, true>(); |
| test_has_copy_constructor<bit_zero, true>(); |
| } |