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_standard_layout 13 14 #include <type_traits> 15 16 template <class T> 17 void test_is_standard_layout() 18 { 19 static_assert( std::is_standard_layout<T>::value, ""); 20 static_assert( std::is_standard_layout<const T>::value, ""); 21 static_assert( std::is_standard_layout<volatile T>::value, ""); 22 static_assert( std::is_standard_layout<const volatile T>::value, ""); 23 } 24 25 template <class T> 26 void test_is_not_standard_layout() 27 { 28 static_assert(!std::is_standard_layout<T>::value, ""); 29 static_assert(!std::is_standard_layout<const T>::value, ""); 30 static_assert(!std::is_standard_layout<volatile T>::value, ""); 31 static_assert(!std::is_standard_layout<const volatile T>::value, ""); 32 } 33 34 template <class T1, class T2> 35 struct pair 36 { 37 T1 first; 38 T2 second; 39 }; 40 41 int main() 42 { 43 test_is_standard_layout<int> (); 44 test_is_standard_layout<int[3]> (); 45 test_is_standard_layout<pair<int, double> > (); 46 47 test_is_not_standard_layout<int&> (); 48 } 49
