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_destructible 13 14 #include <type_traits> 15 #include "test_macros.h" 16 17 template <class T> 18 void test_is_destructible() 19 { 20 static_assert( std::is_destructible<T>::value, ""); 21 static_assert( std::is_destructible<const T>::value, ""); 22 static_assert( std::is_destructible<volatile T>::value, ""); 23 static_assert( std::is_destructible<const volatile T>::value, ""); 24 #if TEST_STD_VER > 14 25 static_assert( std::is_destructible_v<T>, ""); 26 static_assert( std::is_destructible_v<const T>, ""); 27 static_assert( std::is_destructible_v<volatile T>, ""); 28 static_assert( std::is_destructible_v<const volatile T>, ""); 29 #endif 30 } 31 32 template <class T> 33 void test_is_not_destructible() 34 { 35 static_assert(!std::is_destructible<T>::value, ""); 36 static_assert(!std::is_destructible<const T>::value, ""); 37 static_assert(!std::is_destructible<volatile T>::value, ""); 38 static_assert(!std::is_destructible<const volatile T>::value, ""); 39 #if TEST_STD_VER > 14 40 static_assert(!std::is_destructible_v<T>, ""); 41 static_assert(!std::is_destructible_v<const T>, ""); 42 static_assert(!std::is_destructible_v<volatile T>, ""); 43 static_assert(!std::is_destructible_v<const volatile T>, ""); 44 #endif 45 } 46 47 class Empty {}; 48 49 class NotEmpty 50 { 51 virtual ~NotEmpty(); 52 }; 53 54 union Union {}; 55 56 struct bit_zero 57 { 58 int : 0; 59 }; 60 61 struct A 62 { 63 ~A(); 64 }; 65 66 typedef void (Function) (); 67 68 struct PublicAbstract { public: virtual void foo() = 0; }; 69 struct ProtectedAbstract { protected: virtual void foo() = 0; }; 70 struct PrivateAbstract { private: virtual void foo() = 0; }; 71 72 struct PublicDestructor { public: ~PublicDestructor() {}}; 73 struct ProtectedDestructor { protected: ~ProtectedDestructor() {}}; 74 struct PrivateDestructor { private: ~PrivateDestructor() {}}; 75 76 struct VirtualPublicDestructor { public: virtual ~VirtualPublicDestructor() {}}; 77 struct VirtualProtectedDestructor { protected: virtual ~VirtualProtectedDestructor() {}}; 78 struct VirtualPrivateDestructor { private: virtual ~VirtualPrivateDestructor() {}}; 79 80 struct PurePublicDestructor { public: virtual ~PurePublicDestructor() = 0; }; 81 struct PureProtectedDestructor { protected: virtual ~PureProtectedDestructor() = 0; }; 82 struct PurePrivateDestructor { private: virtual ~PurePrivateDestructor() = 0; }; 83 84 #if TEST_STD_VER >= 11 85 struct DeletedPublicDestructor { public: ~DeletedPublicDestructor() = delete; }; 86 struct DeletedProtectedDestructor { protected: ~DeletedProtectedDestructor() = delete; }; 87 struct DeletedPrivateDestructor { private: ~DeletedPrivateDestructor() = delete; }; 88 89 struct DeletedVirtualPublicDestructor { public: virtual ~DeletedVirtualPublicDestructor() = delete; }; 90 struct DeletedVirtualProtectedDestructor { protected: virtual ~DeletedVirtualProtectedDestructor() = delete; }; 91 struct DeletedVirtualPrivateDestructor { private: virtual ~DeletedVirtualPrivateDestructor() = delete; }; 92 #endif 93 94 95 int main() 96 { 97 test_is_destructible<A>(); 98 test_is_destructible<int&>(); 99 test_is_destructible<Union>(); 100 test_is_destructible<Empty>(); 101 test_is_destructible<int>(); 102 test_is_destructible<double>(); 103 test_is_destructible<int*>(); 104 test_is_destructible<const int*>(); 105 test_is_destructible<char[3]>(); 106 test_is_destructible<bit_zero>(); 107 test_is_destructible<int[3]>(); 108 test_is_destructible<ProtectedAbstract>(); 109 test_is_destructible<PublicAbstract>(); 110 test_is_destructible<PrivateAbstract>(); 111 test_is_destructible<PublicDestructor>(); 112 test_is_destructible<VirtualPublicDestructor>(); 113 test_is_destructible<PurePublicDestructor>(); 114 115 test_is_not_destructible<int[]>(); 116 test_is_not_destructible<void>(); 117 test_is_not_destructible<Function>(); 118 119 #if TEST_STD_VER >= 11 120 // Test access controlled destructors 121 test_is_not_destructible<ProtectedDestructor>(); 122 test_is_not_destructible<PrivateDestructor>(); 123 test_is_not_destructible<VirtualProtectedDestructor>(); 124 test_is_not_destructible<VirtualPrivateDestructor>(); 125 test_is_not_destructible<PureProtectedDestructor>(); 126 test_is_not_destructible<PurePrivateDestructor>(); 127 128 // Test deleted constructors 129 test_is_not_destructible<DeletedPublicDestructor>(); 130 test_is_not_destructible<DeletedProtectedDestructor>(); 131 test_is_not_destructible<DeletedPrivateDestructor>(); 132 //test_is_not_destructible<DeletedVirtualPublicDestructor>(); // previously failed due to clang bug #20268 133 test_is_not_destructible<DeletedVirtualProtectedDestructor>(); 134 test_is_not_destructible<DeletedVirtualPrivateDestructor>(); 135 136 // Test private destructors 137 test_is_not_destructible<NotEmpty>(); 138 #endif 139 140 } 141
