improved the implementation of rtree

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10691 85f007b7-540e-0410-9357-904b9bb8a0f7

1 files changed, 5 insertions, 0 deletions

diff --git a/lib/util.ml b/lib/util.ml
index 29edaf3073..ce336ac34c 100644
--- a/lib/util.ml
+++ b/lib/util.ml
@@ -741,6 +741,11 @@ let array_map_left_pair f a g b =
     r, s
   end
 
+let array_iter2 f v1 v2 =
+  let n = Array.length v1 in
+  if Array.length v2 <> n then invalid_arg "array_iter2"
+  else for i = 0 to n - 1 do f v1.(i) v2.(i) done
+
 let pure_functional = false
 
 let array_fold_map' f v e =