according to camlp5 sources, the dummy loc should be 0,0 and not -1,-1

[helm.git] / helm / software / components / extlib / hExtlib.ml

diff --git a/helm/software/components/extlib/hExtlib.ml b/helm/software/components/extlib/hExtlib.ml
index e2063e451a692ccb25fa045de3f88b21c726a499..3fe5c0a7d40762ba0340a82ddad0dc685ee1c44c 100644 (file)
--- a/helm/software/components/extlib/hExtlib.ml
+++ b/helm/software/components/extlib/hExtlib.ml
@@ -464,7 +464,7 @@ let loc_of_floc floc = Stdpp.first_pos floc, Stdpp.last_pos floc;;
 let floc_of_loc (loc_begin, loc_end) =
  Stdpp.make_loc (loc_begin, loc_end)
 
-let dummy_floc = floc_of_loc (-1, -1)
+let dummy_floc = floc_of_loc (0, 0)
 
 let raise_localized_exception ~offset floc exn =
  let x, y = loc_of_floc floc in
@@ -539,6 +539,7 @@ let rec mk_list x = function
 ;;
 
 let list_seq start stop =
+  if start > stop then [] else
   let rec aux pos =
     if pos = stop then []
     else pos :: (aux (pos+1))