Moving inline implementations in concrete/ to below the class interfaces
Mingrating in-class implementations to below their interfaces
modifying the concrete examples chapter
upgrading the concrete examples chapter
template implementations below their interfaces
moving template member definitions out of their interfaces
Reorganizing templateclasses: implementations below interfaces
Typo/formulation repairs
size_t paragraph added, rewriting sections on inline members
Repaired missing : in XXX:YYY constructions