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// has_nothrow_move_assign 13 14#include <type_traits> 15#include "test_macros.h" 16 17template <class T> 18void test_has_nothrow_assign() 19{ 20 static_assert( std::is_nothrow_move_assignable<T>::value, ""); 21#if TEST_STD_VER > 14 22 static_assert( std::is_nothrow_move_assignable_v<T>, ""); 23#endif 24} 25 26template <class T> 27void test_has_not_nothrow_assign() 28{ 29 static_assert(!std::is_nothrow_move_assignable<T>::value, ""); 30#if TEST_STD_VER > 14 31 static_assert(!std::is_nothrow_move_assignable_v<T>, ""); 32#endif 33} 34 35class Empty 36{ 37}; 38 39struct NotEmpty 40{ 41 virtual ~NotEmpty(); 42}; 43 44union Union {}; 45 46struct bit_zero 47{ 48 int : 0; 49}; 50 51struct A 52{ 53 A& operator=(const A&); 54}; 55 56int main() 57{ 58 test_has_nothrow_assign<int&>(); 59 test_has_nothrow_assign<Union>(); 60 test_has_nothrow_assign<Empty>(); 61 test_has_nothrow_assign<int>(); 62 test_has_nothrow_assign<double>(); 63 test_has_nothrow_assign<int*>(); 64 test_has_nothrow_assign<const int*>(); 65 test_has_nothrow_assign<NotEmpty>(); 66 test_has_nothrow_assign<bit_zero>(); 67 68 test_has_not_nothrow_assign<void>(); 69 test_has_not_nothrow_assign<A>(); 70} 71