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-rw-r--r--lib/stdlib/src/gb_trees.erl7
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/stdlib/src/gb_trees.erl b/lib/stdlib/src/gb_trees.erl
index 6ad861ff5b..de0c239e26 100644
--- a/lib/stdlib/src/gb_trees.erl
+++ b/lib/stdlib/src/gb_trees.erl
@@ -1,7 +1,8 @@
+%% -*- coding: utf-8 -*-
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2001-2011. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2012. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -19,7 +20,7 @@
%% =====================================================================
%% General Balanced Trees - highly efficient dictionaries.
%%
-%% Copyright (C) 1999-2001 Sven-Olof Nystr�m, Richard Carlsson
+%% Copyright (C) 1999-2001 Sven-Olof Nyström, Richard Carlsson
%%
%% An efficient implementation of Prof. Arne Andersson's General
%% Balanced Trees. These have no storage overhead compared to plain
@@ -152,6 +153,8 @@
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Some types.
+-export_type([iter/0]).
+
-type gb_tree_node() :: 'nil' | {_, _, _, _}.
-opaque iter() :: [gb_tree_node()].