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_final 13 14 #include <type_traits> 15 #include "test_macros.h" 16 17 #if _LIBCPP_STD_VER > 11 18 19 struct P final { }; 20 union U1 { }; 21 union U2 final { }; 22 23 template <class T> 24 void test_is_final() 25 { 26 static_assert( std::is_final<T>::value, ""); 27 static_assert( std::is_final<const T>::value, ""); 28 static_assert( std::is_final<volatile T>::value, ""); 29 static_assert( std::is_final<const volatile T>::value, ""); 30 #if TEST_STD_VER > 14 31 static_assert( std::is_final_v<T>, ""); 32 static_assert( std::is_final_v<const T>, ""); 33 static_assert( std::is_final_v<volatile T>, ""); 34 static_assert( std::is_final_v<const volatile T>, ""); 35 #endif 36 } 37 38 template <class T> 39 void test_is_not_final() 40 { 41 static_assert(!std::is_final<T>::value, ""); 42 static_assert(!std::is_final<const T>::value, ""); 43 static_assert(!std::is_final<volatile T>::value, ""); 44 static_assert(!std::is_final<const volatile T>::value, ""); 45 #if TEST_STD_VER > 14 46 static_assert(!std::is_final_v<T>, ""); 47 static_assert(!std::is_final_v<const T>, ""); 48 static_assert(!std::is_final_v<volatile T>, ""); 49 static_assert(!std::is_final_v<const volatile T>, ""); 50 #endif 51 } 52 53 int main () 54 { 55 test_is_not_final<int>(); 56 test_is_not_final<int*>(); 57 test_is_final <P>(); 58 test_is_not_final<P*>(); 59 test_is_not_final<U1>(); 60 test_is_not_final<U1*>(); 61 test_is_final <U2>(); 62 test_is_not_final<U2*>(); 63 } 64 #else 65 int main () {} 66 #endif 67
