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-rw-r--r--src/packrat-graphs.ads4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/packrat-graphs.ads b/src/packrat-graphs.ads
index 76be2e4..5074485 100644
--- a/src/packrat-graphs.ads
+++ b/src/packrat-graphs.ads
@@ -469,6 +469,10 @@ private
(Index_Type => Positive,
Element_Type => Node_Index);
+ package Index_Maps is new Ada.Containers.Ordered_Maps
+ (Key_Type => Node_Index,
+ Element_Type => Node_Index);
+