// functions overriding virtual functions from bases classes
public:
void print(std::ostream & os, unsigned upper_precedence) const;
void printraw(std::ostream & os) const;
void printcsrc(std::ostream & os, unsigned type, unsigned upper_precedence) const;
bool info(unsigned inf) const;
// functions overriding virtual functions from bases classes
public:
void print(std::ostream & os, unsigned upper_precedence) const;
void printraw(std::ostream & os) const;
void printcsrc(std::ostream & os, unsigned type, unsigned upper_precedence) const;
bool info(unsigned inf) const;