Files names

ndb/class/code.hpp list of enum class named class_code
ndb/class/base.hpp class_base
ndb/class/basic.hpp basic_class
ndb/class/generic.hpp generic impl
ndb/class/[name1, name2].hpp specialized impl

Code names

giving item named "zeta"
member variable : zeta_
class/type : zeta
collections/lists : zetas
enum class : zeta_code
specialized name : special_zeta
base class : zeta_base
templated class with base : basic_zeta : zeta_base