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_trivially_destructible 13 14 // Prevent warning when testing the Abstract test type. 15 #if defined(__clang__) 16 #pragma clang diagnostic ignored "-Wdelete-non-virtual-dtor" 17 #endif 18 19 #include <type_traits> 20 #include "test_macros.h" 21 22 template <class T> 23 void test_is_trivially_destructible() 24 { 25 static_assert( std::is_trivially_destructible<T>::value, ""); 26 static_assert( std::is_trivially_destructible<const T>::value, ""); 27 static_assert( std::is_trivially_destructible<volatile T>::value, ""); 28 static_assert( std::is_trivially_destructible<const volatile T>::value, ""); 29 #if TEST_STD_VER > 14 30 static_assert( std::is_trivially_destructible_v<T>, ""); 31 static_assert( std::is_trivially_destructible_v<const T>, ""); 32 static_assert( std::is_trivially_destructible_v<volatile T>, ""); 33 static_assert( std::is_trivially_destructible_v<const volatile T>, ""); 34 #endif 35 } 36 37 template <class T> 38 void test_is_not_trivially_destructible() 39 { 40 static_assert(!std::is_trivially_destructible<T>::value, ""); 41 static_assert(!std::is_trivially_destructible<const T>::value, ""); 42 static_assert(!std::is_trivially_destructible<volatile T>::value, ""); 43 static_assert(!std::is_trivially_destructible<const volatile T>::value, ""); 44 #if TEST_STD_VER > 14 45 static_assert(!std::is_trivially_destructible_v<T>, ""); 46 static_assert(!std::is_trivially_destructible_v<const T>, ""); 47 static_assert(!std::is_trivially_destructible_v<volatile T>, ""); 48 static_assert(!std::is_trivially_destructible_v<const volatile T>, ""); 49 #endif 50 } 51 52 struct PublicDestructor { public: ~PublicDestructor() {}}; 53 struct ProtectedDestructor { protected: ~ProtectedDestructor() {}}; 54 struct PrivateDestructor { private: ~PrivateDestructor() {}}; 55 56 struct VirtualPublicDestructor { public: virtual ~VirtualPublicDestructor() {}}; 57 struct VirtualProtectedDestructor { protected: virtual ~VirtualProtectedDestructor() {}}; 58 struct VirtualPrivateDestructor { private: virtual ~VirtualPrivateDestructor() {}}; 59 60 struct PurePublicDestructor { public: virtual ~PurePublicDestructor() = 0; }; 61 struct PureProtectedDestructor { protected: virtual ~PureProtectedDestructor() = 0; }; 62 struct PurePrivateDestructor { private: virtual ~PurePrivateDestructor() = 0; }; 63 64 65 class Empty 66 { 67 }; 68 69 union Union {}; 70 71 struct bit_zero 72 { 73 int : 0; 74 }; 75 76 class Abstract 77 { 78 virtual void foo() = 0; 79 }; 80 81 class AbstractDestructor 82 { 83 virtual ~AbstractDestructor() = 0; 84 }; 85 86 struct A 87 { 88 ~A(); 89 }; 90 91 int main() 92 { 93 test_is_not_trivially_destructible<void>(); 94 test_is_not_trivially_destructible<A>(); 95 test_is_not_trivially_destructible<char[]>(); 96 test_is_not_trivially_destructible<VirtualPublicDestructor>(); 97 test_is_not_trivially_destructible<PurePublicDestructor>(); 98 99 test_is_trivially_destructible<Abstract>(); 100 test_is_trivially_destructible<Union>(); 101 test_is_trivially_destructible<Empty>(); 102 test_is_trivially_destructible<int&>(); 103 test_is_trivially_destructible<int>(); 104 test_is_trivially_destructible<double>(); 105 test_is_trivially_destructible<int*>(); 106 test_is_trivially_destructible<const int*>(); 107 test_is_trivially_destructible<char[3]>(); 108 test_is_trivially_destructible<bit_zero>(); 109 110 #if TEST_STD_VER >= 11 111 // requires access control sfinae 112 test_is_not_trivially_destructible<ProtectedDestructor>(); 113 test_is_not_trivially_destructible<PrivateDestructor>(); 114 test_is_not_trivially_destructible<VirtualProtectedDestructor>(); 115 test_is_not_trivially_destructible<VirtualPrivateDestructor>(); 116 test_is_not_trivially_destructible<PureProtectedDestructor>(); 117 test_is_not_trivially_destructible<PurePrivateDestructor>(); 118 #endif 119 } 120
