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_const 13 14 #include <type_traits> 15 16 template <class T> 17 void test_is_const() 18 { 19 static_assert(!std::is_const<T>::value, ""); 20 static_assert( std::is_const<const T>::value, ""); 21 static_assert(!std::is_const<volatile T>::value, ""); 22 static_assert( std::is_const<const volatile T>::value, ""); 23 } 24 25 int main() 26 { 27 test_is_const<void>(); 28 test_is_const<int>(); 29 test_is_const<double>(); 30 test_is_const<int*>(); 31 test_is_const<const int*>(); 32 test_is_const<char[3]>(); 33 test_is_const<char[3]>(); 34 35 static_assert(!std::is_const<int&>::value, ""); 36 static_assert(!std::is_const<const int&>::value, ""); 37 } 38
