The Objective-C Foundation Classes (OFC) library

The Objective-c foundation classes library is a general purpose library. The
classes in the library are grouped in five clusters: data types, collections,
c-wrappers, network and compound classes. At the moment the library is still
under development. The OFC library and the test and example programs are
licensed under the GNU GPL.

WWW: http://ofc.dvoudheusden.net