static CDS_CONSTEXPR const bool c_bExtractLockExternal = base_class::c_bExtractLockExternal; ///< Group of \p extract_xxx functions do not require external locking
+ //@cond
+ typedef cds::container::ellen_bintree::implementation_tag implementation_tag;
+ //@endcond
+
protected:
//@cond
typedef typename maker::cxx_leaf_node_allocator cxx_leaf_node_allocator;