| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| |
| // is_polymorphic |
| |
| #include <type_traits> |
| |
| template <class T> |
| void test_is_polymorphic() |
| { |
| static_assert( std::is_polymorphic<T>::value, ""); |
| static_assert( std::is_polymorphic<const T>::value, ""); |
| static_assert( std::is_polymorphic<volatile T>::value, ""); |
| static_assert( std::is_polymorphic<const volatile T>::value, ""); |
| } |
| |
| template <class T> |
| void test_is_not_polymorphic() |
| { |
| static_assert(!std::is_polymorphic<T>::value, ""); |
| static_assert(!std::is_polymorphic<const T>::value, ""); |
| static_assert(!std::is_polymorphic<volatile T>::value, ""); |
| static_assert(!std::is_polymorphic<const volatile T>::value, ""); |
| } |
| |
| class Empty |
| { |
| }; |
| |
| class NotEmpty |
| { |
| virtual ~NotEmpty(); |
| }; |
| |
| union Union {}; |
| |
| struct bit_zero |
| { |
| int : 0; |
| }; |
| |
| class Abstract |
| { |
| virtual ~Abstract() = 0; |
| }; |
| |
| #if __has_feature(cxx_attributes) |
| class Final final { |
| }; |
| #else |
| class Final { |
| }; |
| #endif |
| |
| int main() |
| { |
| test_is_not_polymorphic<void>(); |
| test_is_not_polymorphic<int&>(); |
| test_is_not_polymorphic<int>(); |
| test_is_not_polymorphic<double>(); |
| test_is_not_polymorphic<int*>(); |
| test_is_not_polymorphic<const int*>(); |
| test_is_not_polymorphic<char[3]>(); |
| test_is_not_polymorphic<char[3]>(); |
| test_is_not_polymorphic<Union>(); |
| test_is_not_polymorphic<Empty>(); |
| test_is_not_polymorphic<bit_zero>(); |
| test_is_not_polymorphic<Final>(); |
| test_is_not_polymorphic<NotEmpty&>(); |
| test_is_not_polymorphic<Abstract&>(); |
| |
| test_is_polymorphic<NotEmpty>(); |
| test_is_polymorphic<Abstract>(); |
| } |