| //===----------------------------------------------------------------------===// |
| // |
| // 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. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <memory> |
| |
| // template <class Ptr> |
| // struct pointer_traits |
| // { |
| // typedef <details> element_type; |
| // ... |
| // }; |
| |
| #include <memory> |
| #include <type_traits> |
| |
| struct A |
| { |
| typedef char element_type; |
| }; |
| |
| template <class T> |
| struct B |
| { |
| typedef char element_type; |
| }; |
| |
| template <class T> |
| struct C |
| { |
| }; |
| |
| template <class T, class U> |
| struct D |
| { |
| }; |
| |
| int main() |
| { |
| static_assert((std::is_same<std::pointer_traits<A>::element_type, char>::value), ""); |
| static_assert((std::is_same<std::pointer_traits<B<int> >::element_type, char>::value), ""); |
| static_assert((std::is_same<std::pointer_traits<C<int> >::element_type, int>::value), ""); |
| static_assert((std::is_same<std::pointer_traits<D<double, int> >::element_type, double>::value), ""); |
| } |