has_virtual_destructor.pass.cpp revision f5256e16dfc425c1d466f6308d4026d529ce9e0b
1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// type_traits 11 12// has_virtual_destructor 13 14#include <type_traits> 15 16template <class T> 17void test_has_virtual_destructor() 18{ 19 static_assert( std::has_virtual_destructor<T>::value, ""); 20 static_assert( std::has_virtual_destructor<const T>::value, ""); 21 static_assert( std::has_virtual_destructor<volatile T>::value, ""); 22 static_assert( std::has_virtual_destructor<const volatile T>::value, ""); 23} 24 25template <class T> 26void test_has_not_virtual_destructor() 27{ 28 static_assert(!std::has_virtual_destructor<T>::value, ""); 29 static_assert(!std::has_virtual_destructor<const T>::value, ""); 30 static_assert(!std::has_virtual_destructor<volatile T>::value, ""); 31 static_assert(!std::has_virtual_destructor<const volatile T>::value, ""); 32} 33 34class Empty 35{ 36}; 37 38class NotEmpty 39{ 40 virtual ~NotEmpty(); 41}; 42 43union Union {}; 44 45struct bit_zero 46{ 47 int : 0; 48}; 49 50class Abstract 51{ 52 virtual ~Abstract() = 0; 53}; 54 55struct A 56{ 57 ~A(); 58}; 59 60int main() 61{ 62 test_has_not_virtual_destructor<void>(); 63 test_has_not_virtual_destructor<A>(); 64 test_has_not_virtual_destructor<int&>(); 65 test_has_not_virtual_destructor<Union>(); 66 test_has_not_virtual_destructor<Empty>(); 67 test_has_not_virtual_destructor<int>(); 68 test_has_not_virtual_destructor<double>(); 69 test_has_not_virtual_destructor<int*>(); 70 test_has_not_virtual_destructor<const int*>(); 71 test_has_not_virtual_destructor<char[3]>(); 72 test_has_not_virtual_destructor<char[3]>(); 73 test_has_not_virtual_destructor<bit_zero>(); 74 75 test_has_virtual_destructor<Abstract>(); 76 test_has_virtual_destructor<NotEmpty>(); 77} 78