1.1 --- a/lemon/lp_base.h	Wed Nov 14 17:44:42 2007 +0000
     1.2 +++ b/lemon/lp_base.h	Wed Nov 14 17:53:08 2007 +0000
     1.3 @@ -1369,9 +1369,27 @@
     1.4  
     1.5      ///\e
     1.6      Value primal(Col c) const { return _getPrimal(_lpId(c)); }
     1.7 +    ///\e
     1.8 +    Value primal(const Expr& e) const {
     1.9 +      double res = e.constComp();
    1.10 +      for (std::map<Col, double>::const_iterator it = e.begin();
    1.11 +	   it != e.end(); ++it) {
    1.12 +	res += _getPrimal(_lpId(it->first)) * it->second;
    1.13 +      }
    1.14 +      return res; 
    1.15 +    }
    1.16  
    1.17      ///\e
    1.18      Value dual(Row r) const { return _getDual(_lpId(r)); }
    1.19 +    ///\e
    1.20 +    Value dual(const DualExpr& e) const {
    1.21 +      double res = 0.0;
    1.22 +      for (std::map<Row, double>::const_iterator it = e.begin();
    1.23 +	   it != e.end(); ++it) {
    1.24 +	res += _getPrimal(_lpId(it->first)) * it->second;
    1.25 +      }
    1.26 +      return res; 
    1.27 +    }
    1.28  
    1.29      ///\e
    1.30      bool isBasicCol(Col c) const { return _isBasicCol(_lpId(c)); }