id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	revision
203	faster addRow operation for LP	Tapolcai János	Alpar Juttner	"A new function is requested in lp_base.h:

virtual int _addRow(ConstRowIterator, ConstRowIterator, Value, Value) =0;

int this cae the following two function can be replaced in  lp_base.h
1.
    Row addRow(Value l,const Expr &e, Value u) {
      Row r=addRow();
      row(r,l,e,u);
      return r;
    }
by
    Row addRow(Value l,const Expr &e, Value u) {
	  Row r; 
      e.simplify();
      r.id = _addRow(ConstRowIterator(e.begin(), *this),
                    ConstRowIterator(e.end(), *this),l-e.constComp(),u-e.constComp() );
      return r;
    }

2.
    Row addRow(const Constr &c) {
      Row r=addRow();
      row(r,c);
      return r;
    }
by
    Row addRow(const Constr &c) {
      Row r=addRow(c.lowerBounded()?c.lowerBound():-INF,
          c.expr(), c.upperBounded()?c.upperBound():INF);
      return r;
    }

For each solver a new int _addRow(ConstRowIterator, ConstRowIterator, Value, Value) function must be implemented (see also the attached files).

"	defect	new	major	LEMON 1.1 release	core	hg main		LP interface