{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
+ /// @cond undocumented
+
class __undefined;
// For a specialization `SomeTemplate<T, Types...>` the member `type` is T,
using __ptr_traits_elem_t = typename __ptr_traits_elem<_Ptr>::type;
#endif
+ /// @endcond
+
// Define pointer_traits<P>::pointer_to.
template<typename _Ptr, typename _Elt, bool = is_void<_Elt>::value>
struct __ptr_traits_ptr_to
/**
* @brief Uniform interface to all pointer-like types
+ * @headerfile memory
* @ingroup pointer_abstractions
* @since C++11
*/
/**
* @brief Partial specialization for built-in pointers.
+ * @headerfile memory
* @ingroup pointer_abstractions
* @since C++11
*/