From 9043add656177eeac1491a73d2f3ab92bec0013c Mon Sep 17 00:00:00 2001
From: Benjamin Barenblat <bbaren@debian.org>
Date: Sat, 29 Dec 2018 14:31:27 -0500
Subject: Imported Upstream version 8.8.2

---
 clib/range.mli | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 clib/range.mli

(limited to 'clib/range.mli')

diff --git a/clib/range.mli b/clib/range.mli
new file mode 100644
index 00000000..c14b0cf5
--- /dev/null
+++ b/clib/range.mli
@@ -0,0 +1,39 @@
+(************************************************************************)
+(*         *   The Coq Proof Assistant / The Coq Development Team       *)
+(*  v      *   INRIA, CNRS and contributors - Copyright 1999-2018       *)
+(* <O___,, *       (see CREDITS file for the list of authors)           *)
+(*   \VV/  **************************************************************)
+(*    //   *    This file is distributed under the terms of the         *)
+(*         *     GNU Lesser General Public License Version 2.1          *)
+(*         *     (see LICENSE file for the text of the license)         *)
+(************************************************************************)
+
+(** Skewed lists
+
+    This is a purely functional datastructure isomorphic to usual lists, except
+    that it features a O(log n) lookup while preserving the O(1) cons operation.
+
+*)
+
+(** {5 Constructors} *)
+
+type +'a t
+
+val empty : 'a t
+val cons : 'a -> 'a t -> 'a t
+
+(** {5 List operations} *)
+
+val is_empty : 'a t -> bool
+val length : 'a t -> int
+val map : ('a -> 'b) -> 'a t -> 'b t
+val fold_left : ('a -> 'b -> 'a) -> 'a -> 'b t -> 'a
+val fold_right : ('a -> 'b -> 'b) -> 'a t -> 'b -> 'b
+val hd : 'a t -> 'a
+val tl : 'a t -> 'a t
+
+val skipn : int -> 'a t -> 'a t
+
+(** {5 Indexing operations} *)
+
+val get : 'a t -> int -> 'a
-- 
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