| 50 | char name() const; |
| 51 | static Variable highest() { return Variable( LEVELQUOT-1 ); } |
| 52 | Variable next() const { return Variable( _level+1 ); } |
| 53 | friend bool operator == ( const Variable & lhs, const Variable & rhs ) |
| 54 | { |
| 55 | return lhs._level == rhs._level; |