41#ifndef PB_DS_LU_MAP_ENTRY_METADATA_BASE_HPP
42#define PB_DS_LU_MAP_ENTRY_METADATA_BASE_HPP
48 template<
typename Metadata>
49 struct lu_map_entry_metadata_base
51 Metadata m_update_metadata;
55 struct lu_map_entry_metadata_base<null_type>
GNU extensions for policy-based data structures for public use.