44 lines
1.9 KiB
OCaml
44 lines
1.9 KiB
OCaml
(**************************************************************************)
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(* *)
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(* OCaml *)
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(* *)
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(* Pierre Chambart, OCamlPro *)
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(* Mark Shinwell and Leo White, Jane Street Europe *)
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(* *)
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(* Copyright 2013--2016 OCamlPro SAS *)
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(* Copyright 2014--2016 Jane Street Group LLC *)
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(* *)
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(* All rights reserved. This file is distributed under the terms of *)
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(* the GNU Lesser General Public License version 2.1, with the *)
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(* special exception on linking described in the file LICENSE. *)
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(* *)
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(**************************************************************************)
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(** Kosaraju's algorithm for strongly connected components.
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{b Warning:} this module is unstable and part of
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{{!Compiler_libs}compiler-libs}.
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*)
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module type S = sig
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module Id : Identifiable.S
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type directed_graph = Id.Set.t Id.Map.t
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(** If (a -> set) belongs to the map, it means that there are edges
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from [a] to every element of [set]. It is assumed that no edge
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points to a vertex not represented in the map. *)
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type component =
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| Has_loop of Id.t list
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| No_loop of Id.t
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val connected_components_sorted_from_roots_to_leaf
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: directed_graph
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-> component array
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val component_graph : directed_graph -> (component * int list) array
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end
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module Make (Id : Identifiable.S) : S with module Id := Id
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