X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Fextlib%2FhExtlib.ml;h=979b0c51956da0fadb906187f23b367d8cf0ef27;hb=93703370bfac25b4d342278388f54cc5e27cd531;hp=99e6609ec27efed198c8ba68bfa34f0f6b069199;hpb=f4f050696e66b8604d9f0ff8173afe03addf74d6;p=helm.git

diff --git a/helm/ocaml/extlib/hExtlib.ml b/helm/ocaml/extlib/hExtlib.ml
index 99e6609ec..979b0c519 100644
--- a/helm/ocaml/extlib/hExtlib.ml
+++ b/helm/ocaml/extlib/hExtlib.ml
@@ -321,6 +321,16 @@ let loc_of_floc = function
   | { Lexing.pos_cnum = loc_begin }, { Lexing.pos_cnum = loc_end } ->
       (loc_begin, loc_end)
 
+let floc_of_loc (loc_begin, loc_end) =
+  let floc_begin =
+    { Lexing.pos_fname = ""; Lexing.pos_lnum = -1; Lexing.pos_bol = -1;
+      Lexing.pos_cnum = loc_begin }
+  in
+  let floc_end = { floc_begin with Lexing.pos_cnum = loc_end } in
+  (floc_begin, floc_end)
+
+let dummy_floc = floc_of_loc (-1, -1)
+
 let raise_localized_exception ~offset floc exn =
  let (x, y) = loc_of_floc floc in
  let x = offset + x in