myBlocks_tc Node1 myBlocks_tc + allocated + allocsize + algindex + curstage + member_hook_ + myBlocks_tc() + myBlocks_tc() Node2 boost::intrusive::bs _set_base_hook< boost ::intrusive::optimize _size< false > > Node2->Node1 Node3 std::vector< void * > + elements Node3->Node1 +allocatedFrom