1 files changed, 5 insertions, 1 deletions
diff --git a/GateAnd.h b/GateAnd.h
index a8cc3d0..639a93b 100644
--- a/GateAnd.h
+++ b/GateAnd.h
@@ -9,10 +9,14 @@ public:
 	~GateAnd() = default;
 	virtual GateAnd * clone() const;
 
-private:
+protected:
 	SignalLevel level();
 
+	int min_inputs = 0;
+	int max_inputs = -1;
 	GateAnd(const char * type);
+
+private:
 	constexpr static const char * type = "and";
 	static GateAnd instance;
 };