--- /dev/null
+#ifndef GINAC_UPOLY_IO_HPP
+#define GINAC_UPOLY_IO_HPP
+#include <iostream>
+#include "upoly.hpp"
+
+namespace GiNaC
+{
+extern std::ostream& operator<<(std::ostream&, const upoly& );
+extern std::ostream& operator<<(std::ostream&, const umodpoly& );
+}
+
+#endif // GINAC_UPOLY_IO_HPP