| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| |
| // lvalue_ref |
| |
| #include <type_traits> |
| |
| template <class T> |
| void test_lvalue_ref() |
| { |
| static_assert(!std::is_void<T>::value, ""); |
| #if _LIBCPP_STD_VER > 11 |
| static_assert(!std::is_null_pointer<T>::value, ""); |
| #endif |
| static_assert(!std::is_integral<T>::value, ""); |
| static_assert(!std::is_floating_point<T>::value, ""); |
| static_assert(!std::is_array<T>::value, ""); |
| static_assert(!std::is_pointer<T>::value, ""); |
| static_assert( std::is_lvalue_reference<T>::value, ""); |
| static_assert(!std::is_rvalue_reference<T>::value, ""); |
| static_assert(!std::is_member_object_pointer<T>::value, ""); |
| static_assert(!std::is_member_function_pointer<T>::value, ""); |
| static_assert(!std::is_enum<T>::value, ""); |
| static_assert(!std::is_union<T>::value, ""); |
| static_assert(!std::is_class<T>::value, ""); |
| static_assert(!std::is_function<T>::value, ""); |
| } |
| |
| struct incomplete_type; |
| |
| int main() |
| { |
| test_lvalue_ref<int&>(); |
| test_lvalue_ref<const int&>(); |
| |
| // LWG#2581 |
| static_assert(!std::is_lvalue_reference<incomplete_type>::value, ""); |
| } |