// functions overriding virtual functions from base classes
public:
- void print(const print_context & c, unsigned level = 0) const;
unsigned precedence() const {return 20;}
bool info(unsigned inf) const;
size_t nops() const;
unsigned calchash() const;
// new virtual functions which can be overridden by derived classes
+protected:
+ void do_print(const print_context & c, unsigned level) const;
+ void do_print_python_repr(const print_python_repr & c, unsigned level) const;
+
public:
virtual ex lhs() const;
virtual ex rhs() const;