1 files changed, 15 insertions, 0 deletions
diff --git a/src/edif/edif-nutils.ads b/src/edif/edif-nutils.ads
new file mode 100644
index 000000000..a53f46bfc
--- /dev/null
+++ b/src/edif/edif-nutils.ads
@@ -0,0 +1,15 @@
+with Edif.Nodes; use Edif.Nodes;
+
+package Edif.Nutils is
+   type Constr_Type is limited private;
+
+   procedure Init_Constr (Constr : out Constr_Type);
+   procedure Append_Node (Constr : in out Constr_Type; N : Node);
+   function Get_Constr_Chain (Constr : Constr_Type) return Node;
+
+private
+   type Constr_Type is record
+      First : Node;
+      Last : Node;
+   end record;
+end Edif.Nutils;