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_move_constructible 13 14 #include <type_traits> 15 16 template <class T> 17 void test_is_trivially_move_constructible() 18 { 19 static_assert( std::is_trivially_move_constructible<T>::value, ""); 20 } 21 22 template <class T> 23 void test_has_not_trivial_move_constructor() 24 { 25 static_assert(!std::is_trivially_move_constructible<T>::value, ""); 26 } 27 28 class Empty 29 { 30 }; 31 32 class NotEmpty 33 { 34 public: 35 virtual ~NotEmpty(); 36 }; 37 38 union Union {}; 39 40 struct bit_zero 41 { 42 int : 0; 43 }; 44 45 class Abstract 46 { 47 public: 48 virtual ~Abstract() = 0; 49 }; 50 51 struct A 52 { 53 A(const A&); 54 }; 55 56 #if __has_feature(cxx_defaulted_functions) 57 58 struct MoveOnly1 59 { 60 MoveOnly1(MoveOnly1&&); 61 }; 62 63 struct MoveOnly2 64 { 65 MoveOnly2(MoveOnly2&&) = default; 66 }; 67 68 #endif 69 70 int main() 71 { 72 test_has_not_trivial_move_constructor<void>(); 73 test_has_not_trivial_move_constructor<A>(); 74 test_has_not_trivial_move_constructor<Abstract>(); 75 test_has_not_trivial_move_constructor<NotEmpty>(); 76 77 test_is_trivially_move_constructible<Union>(); 78 test_is_trivially_move_constructible<Empty>(); 79 test_is_trivially_move_constructible<int>(); 80 test_is_trivially_move_constructible<double>(); 81 test_is_trivially_move_constructible<int*>(); 82 test_is_trivially_move_constructible<const int*>(); 83 test_is_trivially_move_constructible<bit_zero>(); 84 85 #if __has_feature(cxx_defaulted_functions) 86 static_assert(!std::is_trivially_move_constructible<MoveOnly1>::value, ""); 87 static_assert( std::is_trivially_move_constructible<MoveOnly2>::value, ""); 88 #endif 89 } 90
