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-rw-r--r--muse2/muse/undo.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/muse2/muse/undo.h b/muse2/muse/undo.h
index f0bf35fc..f27dbcc3 100644
--- a/muse2/muse/undo.h
+++ b/muse2/muse/undo.h
@@ -132,6 +132,8 @@ class Undo : public std::list<UndoOp> {
typedef Undo::iterator iUndoOp;
typedef Undo::reverse_iterator riUndoOp;
+typedef Undo::const_iterator ciUndoOp;
+typedef Undo::const_reverse_iterator criUndoOp;
class UndoList : public std::list<Undo> {
protected: