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_nothrow_destructible 13 14 #include <type_traits> 15 16 template <class T> 17 void test_is_nothrow_destructible() 18 { 19 static_assert( std::is_nothrow_destructible<T>::value, ""); 20 static_assert( std::is_nothrow_destructible<const T>::value, ""); 21 static_assert( std::is_nothrow_destructible<volatile T>::value, ""); 22 static_assert( std::is_nothrow_destructible<const volatile T>::value, ""); 23 } 24 25 template <class T> 26 void test_has_not_nothrow_destructor() 27 { 28 static_assert(!std::is_nothrow_destructible<T>::value, ""); 29 static_assert(!std::is_nothrow_destructible<const T>::value, ""); 30 static_assert(!std::is_nothrow_destructible<volatile T>::value, ""); 31 static_assert(!std::is_nothrow_destructible<const volatile T>::value, ""); 32 } 33 34 class Empty 35 { 36 }; 37 38 class NotEmpty 39 { 40 virtual ~NotEmpty(); 41 }; 42 43 union Union {}; 44 45 struct bit_zero 46 { 47 int : 0; 48 }; 49 50 class Abstract 51 { 52 virtual ~Abstract() = 0; 53 }; 54 55 struct A 56 { 57 ~A(); 58 }; 59 60 int main() 61 { 62 test_has_not_nothrow_destructor<void>(); 63 test_has_not_nothrow_destructor<Abstract>(); 64 test_has_not_nothrow_destructor<NotEmpty>(); 65 66 #if __has_feature(cxx_noexcept) 67 test_is_nothrow_destructible<A>(); 68 #endif 69 test_is_nothrow_destructible<int&>(); 70 #if __has_feature(cxx_unrestricted_unions) 71 test_is_nothrow_destructible<Union>(); 72 #endif 73 #if __has_feature(cxx_access_control_sfinae) 74 test_is_nothrow_destructible<Empty>(); 75 #endif 76 test_is_nothrow_destructible<int>(); 77 test_is_nothrow_destructible<double>(); 78 test_is_nothrow_destructible<int*>(); 79 test_is_nothrow_destructible<const int*>(); 80 test_is_nothrow_destructible<char[3]>(); 81 test_is_nothrow_destructible<char[3]>(); 82 #if __has_feature(cxx_noexcept) 83 test_is_nothrow_destructible<bit_zero>(); 84 #endif 85 } 86
