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-rw-r--r--src/psl/psl-nodes_priv.ads1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/psl/psl-nodes_priv.ads b/src/psl/psl-nodes_priv.ads
index 5c0bf51d0..9927b8bde 100644
--- a/src/psl/psl-nodes_priv.ads
+++ b/src/psl/psl-nodes_priv.ads
@@ -20,6 +20,7 @@ with Types; use Types;
package PSL.Nodes_Priv is
-- PSL Node.
type PSL_Node is new Int32;
+ Null_PSL_Node : constant PSL_Node := 0;
-- PSL NFA
type PSL_NFA is new Int32;