19 cout <<
"IndexRange::checkRange : lower bound " << l <<
" is out of bounds" << endl;
26 cout <<
"IndexRange::checkRange : upper bound " <<
h <<
" is out of bounds" << endl;
virtual int lwb() const =0
bool isInRange(int i) const
bool checkRange(int &l, int &h) const
virtual int upb() const =0