ch2 lists: interfaces/implementations and suffixes
ch2 binary search trees: UnbalancedSet functor
ch2 binary search trees: functor with fast member function
ch2 binary search trees: functor that fails on duplicate insertion
ch2 binary search trees: fast member/insertion set functor
ch2 binary search trees: build tree of depth d
ch2 binary search trees: balance tree of given size
ch2 binary search trees: finitemap from ordered type functor
Purely Functional Data Structures Ch2