1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // type_traits 11 12 // is_polymorphic 13 14 #include <type_traits> 15 #include "test_macros.h" 16 17 template <class T> 18 void test_is_polymorphic() 19 { 20 static_assert( std::is_polymorphic<T>::value, ""); 21 static_assert( std::is_polymorphic<const T>::value, ""); 22 static_assert( std::is_polymorphic<volatile T>::value, ""); 23 static_assert( std::is_polymorphic<const volatile T>::value, ""); 24 #if TEST_STD_VER > 14 25 static_assert( std::is_polymorphic_v<T>, ""); 26 static_assert( std::is_polymorphic_v<const T>, ""); 27 static_assert( std::is_polymorphic_v<volatile T>, ""); 28 static_assert( std::is_polymorphic_v<const volatile T>, ""); 29 #endif 30 } 31 32 template <class T> 33 void test_is_not_polymorphic() 34 { 35 static_assert(!std::is_polymorphic<T>::value, ""); 36 static_assert(!std::is_polymorphic<const T>::value, ""); 37 static_assert(!std::is_polymorphic<volatile T>::value, ""); 38 static_assert(!std::is_polymorphic<const volatile T>::value, ""); 39 #if TEST_STD_VER > 14 40 static_assert(!std::is_polymorphic_v<T>, ""); 41 static_assert(!std::is_polymorphic_v<const T>, ""); 42 static_assert(!std::is_polymorphic_v<volatile T>, ""); 43 static_assert(!std::is_polymorphic_v<const volatile T>, ""); 44 #endif 45 } 46 47 class Empty 48 { 49 }; 50 51 class NotEmpty 52 { 53 virtual ~NotEmpty(); 54 }; 55 56 union Union {}; 57 58 struct bit_zero 59 { 60 int : 0; 61 }; 62 63 class Abstract 64 { 65 virtual ~Abstract() = 0; 66 }; 67 68 #if TEST_STD_VER >= 11 69 class Final final { 70 }; 71 #else 72 class Final { 73 }; 74 #endif 75 76 int main() 77 { 78 test_is_not_polymorphic<void>(); 79 test_is_not_polymorphic<int&>(); 80 test_is_not_polymorphic<int>(); 81 test_is_not_polymorphic<double>(); 82 test_is_not_polymorphic<int*>(); 83 test_is_not_polymorphic<const int*>(); 84 test_is_not_polymorphic<char[3]>(); 85 test_is_not_polymorphic<char[]>(); 86 test_is_not_polymorphic<Union>(); 87 test_is_not_polymorphic<Empty>(); 88 test_is_not_polymorphic<bit_zero>(); 89 test_is_not_polymorphic<Final>(); 90 test_is_not_polymorphic<NotEmpty&>(); 91 test_is_not_polymorphic<Abstract&>(); 92 93 test_is_polymorphic<NotEmpty>(); 94 test_is_polymorphic<Abstract>(); 95 } 96
