c0ee726fb2
Preprocessor is now a library installed by opam. Replaced ligolang@gmail.com by contact@ligolang.org in opam files. Reformatted some opam files. Removed #line directive from preprocessor. Added to the interface of ParserUnit. Script messages.sh now checks the identity of .msg and .msg.old to avoid undue warning about possibly different LR items. |
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| .. | ||
| .gitignore | ||
| .links | ||
| .PartitionMain.tag | ||
| build.sh | ||
| clean.sh | ||
| dune | ||
| dune-project | ||
| LICENSE | ||
| Makefile.cfg | ||
| Partition0.ml | ||
| Partition1.ml | ||
| Partition2.ml | ||
| Partition3.ml | ||
| Partition.mli | ||
| PartitionMain.ml | ||
| README.md | ||
| UnionFind.install | ||
| unionFind.ml | ||
| UnionFind.opam | ||
Some implementations in OCaml of the Union/Find algorithm
All modules implementing Union/Find can be coerced by the same
signature Partition.S.
Note the function alias which is equivalent to equiv, but not
symmetric: alias x y means that x is an alias of y, which
translates in the present context as x not being the representative
of the equivalence class containing the equivalence between x and
y. The function alias is useful when managing aliases during the
static analyses of programming languages, so the representatives of
the classes are always the original object.
The module PartitionMain tests each with the same equivalence
relations.
Partition0.ml
This is a naive, persistent implementation of Union/Find featuring an asymptotic worst case cost of O(n^2).
Partition1.ml
This is a persistent implementation of Union/Find with height-balanced forests and without path compression, featuring an asymptotic worst case cost of O(n*log(n)).
Partition2.ml
This is an alternate version of Partition1.ml, using a different
data type.
Partition3.ml
This is a destructive implementation of Union/Find with height-balanced forests but without path compression, featuring an asymptotic worst case of O(n*log(n)). In practice, though, this implementation should be faster than the previous ones, due to a smaller multiplicative constant term.