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 // decay 13 14 #include <type_traits> 15 16 template <class T, class U> 17 void test_decay() 18 { 19 static_assert((std::is_same<typename std::decay<T>::type, U>::value), ""); 20 #if _LIBCPP_STD_VER > 11 21 static_assert((std::is_same<std::decay_t<T>, U>::value), ""); 22 #endif 23 } 24 25 int main() 26 { 27 test_decay<void, void>(); 28 test_decay<int, int>(); 29 test_decay<const volatile int, int>(); 30 test_decay<int*, int*>(); 31 test_decay<int[3], int*>(); 32 test_decay<const int[3], const int*>(); 33 test_decay<void(), void (*)()>(); 34 } 35
