freebsd-ports/devel/hs-dlist/pkg-descr
Martin Wilke a2d02bde18 Differences lists are a list-like type supporting O(1) append. This is
particularly useful for efficient logging and pretty printing, (e.g.
with the Writer monad), where list append quickly becomes too expensive.

WWW: http://code.haskell.org/~dons/code/dlist/

PR:		ports/128770
Submitted by:	Samy Al Bahra <sbahra at kerneled.org>
2008-11-15 19:51:57 +00:00

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Differences lists are a list-like type supporting O(1) append. This is
particularly useful for efficient logging and pretty printing, (e.g.
with the Writer monad), where list append quickly becomes too expensive.
WWW: http://code.haskell.org/~dons/code/dlist/