FSet is a functional set-theoretic collections library for Common Lisp. All update operations return a new collection, rather than modifying an existing one in place. FSet has sets, bags (multisets), maps, and seqs (functional sequences). It uses heterogeneous weight-balanced binary trees for good performance with very reasonable space overhead.
|Source code repository||svn checkout svn://common-lisp.net/project/fset/svn|
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