| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // type_traits |
| |
| // add_const |
| |
| #include <type_traits> |
| |
| template <class T, class U> |
| void test_add_const_imp() |
| { |
| static_assert((std::is_same<typename std::add_const<T>::type, const U>::value), ""); |
| #if _LIBCPP_STD_VER > 11 |
| static_assert((std::is_same<std::add_const_t<T>, U>::value), ""); |
| #endif |
| } |
| |
| template <class T> |
| void test_add_const() |
| { |
| test_add_const_imp<T, const T>(); |
| test_add_const_imp<const T, const T>(); |
| test_add_const_imp<volatile T, volatile const T>(); |
| test_add_const_imp<const volatile T, const volatile T>(); |
| } |
| |
| int main() |
| { |
| test_add_const<void>(); |
| test_add_const<int>(); |
| test_add_const<int[3]>(); |
| test_add_const<int&>(); |
| test_add_const<const int&>(); |
| test_add_const<int*>(); |
| test_add_const<const int*>(); |
| } |