1 files changed, 6 insertions, 0 deletions
diff --git a/src/theory/arith/arith_utilities.h b/src/theory/arith/arith_utilities.h
index 42f4704df..0168ee043 100644
--- a/src/theory/arith/arith_utilities.h
+++ b/src/theory/arith/arith_utilities.h
@@ -49,11 +49,17 @@ typedef __gnu_cxx::hash_map<ArithVar, Node> ArithVarToNodeMap;
 typedef __gnu_cxx::hash_set<Node, NodeHashFunction> NodeSet;
 typedef context::CDSet<Node, NodeHashFunction> CDNodeSet;
 
+typedef context::CDSet<ArithVar> CDArithVarSet;
+
 
 inline Node mkRationalNode(const Rational& q){
   return NodeManager::currentNM()->mkConst<Rational>(q);
 }
 
+inline Node mkIntegerNode(const Integer& z){
+  return NodeManager::currentNM()->mkConst<Integer>(z);
+}
+
 inline Node mkBoolNode(bool b){
   return NodeManager::currentNM()->mkConst<bool>(b);
 }