diff -r c160bf9f18ef -r 580af8cf2f6a lemon/clp.cc
--- a/lemon/clp.cc	Thu Nov 05 10:01:02 2009 +0100
+++ b/lemon/clp.cc	Thu Nov 05 10:23:16 2009 +0100
@@ -78,6 +78,19 @@
     return _prob->numberRows() - 1;
   }
 
+  int ClpLp::_addRow(Value l, ExprIterator b, ExprIterator e, Value u) {
+    std::vector<int> indexes;
+    std::vector<Value> values;
+
+    for(ExprIterator it = b; it != e; ++it) {
+      indexes.push_back(it->first);
+      values.push_back(it->second);
+    }
+
+    _prob->addRow(values.size(), &indexes.front(), &values.front(), l, u);
+    return _prob->numberRows() - 1;
+  }
+
 
   void ClpLp::_eraseCol(int c) {
     _col_names_ref.erase(_prob->getColumnName(c));