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_copy_constructible 13 14#include <type_traits> 15 16template <class T> 17void test_is_copy_constructible() 18{ 19 static_assert( std::is_copy_constructible<T>::value, ""); 20} 21 22template <class T> 23void test_is_not_copy_constructible() 24{ 25 static_assert(!std::is_copy_constructible<T>::value, ""); 26} 27 28class Empty 29{ 30}; 31 32class NotEmpty 33{ 34public: 35 virtual ~NotEmpty(); 36}; 37 38union Union {}; 39 40struct bit_zero 41{ 42 int : 0; 43}; 44 45class Abstract 46{ 47public: 48 virtual ~Abstract() = 0; 49}; 50 51struct A 52{ 53 A(const A&); 54}; 55 56class B 57{ 58 B(const B&); 59}; 60 61struct C 62{ 63 C(C&); // not const 64 void operator=(C&); // not const 65}; 66 67int main() 68{ 69 test_is_copy_constructible<A>(); 70 test_is_copy_constructible<int&>(); 71 test_is_copy_constructible<Union>(); 72 test_is_copy_constructible<Empty>(); 73 test_is_copy_constructible<int>(); 74 test_is_copy_constructible<double>(); 75 test_is_copy_constructible<int*>(); 76 test_is_copy_constructible<const int*>(); 77 test_is_copy_constructible<NotEmpty>(); 78 test_is_copy_constructible<bit_zero>(); 79 80 test_is_not_copy_constructible<char[3]>(); 81 test_is_not_copy_constructible<char[]>(); 82 test_is_not_copy_constructible<void>(); 83 test_is_not_copy_constructible<Abstract>(); 84 test_is_not_copy_constructible<C>(); 85#if __has_feature(cxx_access_control_sfinae) 86 test_is_not_copy_constructible<B>(); 87#endif 88} 89