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 16template <class T> 17void 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 25template <class T> 26void 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 34template <class T1, class T2> 35struct pair 36{ 37 T1 first; 38 T2 second; 39}; 40 41int 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