[Ocaml-lib-devel] New Library 1: XList

[Brian H. <bh...@sp...>]

OK, The first of three libraries I'm submitting for comments:  XList.  

XList is a reimplementation of the Ocaml standard List library, except all
non-tail recursion has been removed, and instead I use Olivier Andrieu's
setcdr function.  This should be as fast as recursion for short lists, but 
work correctly (shouldn't blow stack) for long lists.

Well, for everything except two functions:  fold_right and fold_right2.  
For these two functions I did the reverse-the-list-first trick.  As this 
is slower than recursion for short lists, I also added fold_right' and 
fold_right2' which use non-tail recursion if it's important.

Brian