From f4a6a6aaa928e7a6c8d360c45268cb82c020c2dc Mon Sep 17 00:00:00 2001
From: ppedrot <ppedrot@85f007b7-540e-0410-9357-904b9bb8a0f7>
Date: Sun, 25 Aug 2013 22:34:08 +0000
Subject: Added a more efficient way to recover the domain of a map.

The extended signature is defined in CMap, and should be compatible
with the old one, except that module arguments have to be explicitely
named. The implementation itself is quite unsafe, as it relies on the
current implementation of OCaml maps, even though that should not be
a problem (it has not changed in ages).

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16735 85f007b7-540e-0410-9357-904b9bb8a0f7
---
 library/goptions.ml | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'library/goptions.ml')

diff --git a/library/goptions.ml b/library/goptions.ml
index 80539a156..4151e6774 100644
--- a/library/goptions.ml
+++ b/library/goptions.ml
@@ -192,8 +192,13 @@ type 'a option_sig = {
   optread  : unit -> 'a;
   optwrite : 'a -> unit }
 
-module OptionMap =
-  Map.Make (struct  type t = option_name let compare = compare end)
+module OptionOrd =
+struct
+  type t = option_name
+  let compare = compare
+end
+
+module OptionMap = Map.Make(OptionOrd)
 
 let value_tab = ref OptionMap.empty
 
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