| //===----------------------------------------------------------------------===// |
| // |
| // 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> |
| |
| // check nested types: |
| |
| // template <class T> |
| // class allocator |
| // { |
| // public: |
| // typedef size_t size_type; |
| // typedef ptrdiff_t difference_type; |
| // typedef T* pointer; |
| // typedef const T* const_pointer; |
| // typedef typename add_lvalue_reference<T>::type reference; |
| // typedef typename add_lvalue_reference<const T>::type const_reference; |
| // typedef T value_type; |
| // |
| // template <class U> struct rebind {typedef allocator<U> other;}; |
| // ... |
| // }; |
| |
| #include <memory> |
| #include <type_traits> |
| #include <cstddef> |
| |
| int main() |
| { |
| static_assert((std::is_same<std::allocator<char>::size_type, std::size_t>::value), ""); |
| static_assert((std::is_same<std::allocator<char>::difference_type, std::ptrdiff_t>::value), ""); |
| static_assert((std::is_same<std::allocator<char>::pointer, char*>::value), ""); |
| static_assert((std::is_same<std::allocator<char>::const_pointer, const char*>::value), ""); |
| static_assert((std::is_same<std::allocator<char>::value_type, char>::value), ""); |
| static_assert((std::is_same<std::allocator<char>::reference, char&>::value), ""); |
| static_assert((std::is_same<std::allocator<char>::const_reference, const char&>::value), ""); |
| static_assert((std::is_same<std::allocator<char>::rebind<int>::other, |
| std::allocator<int> >::value), ""); |
| std::allocator<char> a; |
| std::allocator<char> a2 = a; |
| a2 = a; |
| std::allocator<int> a3 = a2; |
| } |