diff -r 751a14b992f2 -r bfbdded3763a lemon/lp_cplex.h
--- a/lemon/lp_cplex.h	Fri Feb 16 15:57:48 2007 +0000
+++ b/lemon/lp_cplex.h	Fri Feb 16 19:11:31 2007 +0000
@@ -60,44 +60,45 @@
     virtual int _addRow();
     virtual void _eraseCol(int i);
     virtual void _eraseRow(int i);
-    virtual void _getColName(int col,       std::string & name);
+    virtual void _getColName(int col, std::string & name) const;
     virtual void _setColName(int col, const std::string & name);
+    virtual int _colByName(const std::string& name) const;
     virtual void _setRowCoeffs(int i, ConstRowIterator b, ConstRowIterator e);
-    virtual void _getRowCoeffs(int i, RowIterator b);
+    virtual void _getRowCoeffs(int i, RowIterator b) const;
     virtual void _setColCoeffs(int i, ConstColIterator b, ConstColIterator e);
-    virtual void _getColCoeffs(int i, ColIterator b);
+    virtual void _getColCoeffs(int i, ColIterator b) const;
     virtual void _setCoeff(int row, int col, Value value);
-    virtual Value _getCoeff(int row, int col);
+    virtual Value _getCoeff(int row, int col) const;
 
     virtual void _setColLowerBound(int i, Value value);
-    virtual Value _getColLowerBound(int i);
+    virtual Value _getColLowerBound(int i) const;
     virtual void _setColUpperBound(int i, Value value);
-    virtual Value _getColUpperBound(int i);
+    virtual Value _getColUpperBound(int i) const;
 
 //     virtual void _setRowLowerBound(int i, Value value);
 //     virtual void _setRowUpperBound(int i, Value value);
     virtual void _setRowBounds(int i, Value lower, Value upper);
-    virtual void _getRowBounds(int i, Value &lb, Value &ub);
+    virtual void _getRowBounds(int i, Value &lb, Value &ub) const;
     virtual void _setObjCoeff(int i, Value obj_coef);
-    virtual Value _getObjCoeff(int i);
+    virtual Value _getObjCoeff(int i) const;
     virtual void _clearObj();
 
     
     virtual SolveExitStatus _solve();
-    virtual Value _getPrimal(int i);
-    virtual Value _getDual(int i);
-    virtual Value _getPrimalValue();
-    virtual bool _isBasicCol(int i);
+    virtual Value _getPrimal(int i) const;
+    virtual Value _getDual(int i) const;
+    virtual Value _getPrimalValue() const;
+    virtual bool _isBasicCol(int i) const;
     
-    virtual SolutionStatus _getPrimalStatus();
-    virtual SolutionStatus _getDualStatus();
-    virtual ProblemTypes _getProblemType();
+    virtual SolutionStatus _getPrimalStatus() const;
+    virtual SolutionStatus _getDualStatus() const;
+    virtual ProblemTypes _getProblemType() const;
 
     
     virtual void _setMax();
     virtual void _setMin();
 
-    virtual bool _isMax();
+    virtual bool _isMax() const;
 
   };
 } //END OF NAMESPACE LEMON