diff -r c9c2e90b2342 -r c3dc75d4af24 src/lemon/lp_solver_skeleton.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/lemon/lp_solver_skeleton.cc	Tue Apr 05 09:08:23 2005 +0000
@@ -0,0 +1,84 @@
+/* -*- C++ -*-
+ * src/lemon/lp_solver_skeleton.cc
+ * - Part of LEMON, a generic C++ optimization library
+ *
+ * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
+ * (Egervary Combinatorial Optimization Research Group, EGRES).
+ *
+ * Permission to use, modify and distribute this software is granted
+ * provided that this copyright notice appears in all copies. For
+ * precise terms see the accompanying LICENSE file.
+ *
+ * This software is provided "AS IS" with no warranty of any kind,
+ * express or implied, and with no claim as to its suitability for any
+ * purpose.
+ *
+ */
+
+#include <lemon/lp_solver_skeleton.h>
+
+///\file
+///\brief A skeleton file to implement LP solver interfaces
+namespace lemon {
+  
+  int LpSolverSkeleton::_addCol()
+  {
+    return ++col_num;
+  }
+  
+  int LpSolverSkeleton::_addRow() 
+  {
+    return ++row_num;
+  }
+  
+  void LpSolverSkeleton::_setRowCoeffs(int i, 
+					       int length,
+					       int  const * indices, 
+					       Value  const * values )
+  {
+  }
+  
+  void LpSolverSkeleton::_setColCoeffs(int i, 
+					       int length,
+					       int  const * indices, 
+					       Value  const * values)
+  {
+  }
+  
+  void LpSolverSkeleton::_setColLowerBound(int i, Value value)
+  {
+  }
+  
+  void LpSolverSkeleton::_setColUpperBound(int i, Value value)
+  {
+  }
+  
+  void LpSolverSkeleton::_setRowLowerBound(int i, Value value)
+  {
+  }
+  
+  void LpSolverSkeleton::_setRowUpperBound(int i, Value value)
+  {
+  }
+  
+  void LpSolverSkeleton::_setObjCoeff(int i, Value obj_coef)
+  {
+  }
+
+  LpSolverSkeleton::SolveExitStatus LpSolverSkeleton::_solve()
+  {
+    return SOLVED;
+  }
+
+  LpSolverSkeleton::Value LpSolverSkeleton::_getPrimal(int i)
+  {
+    return 0;
+  }
+  
+  LpSolverSkeleton::SolutionStatus LpSolverSkeleton::_getPrimalType()
+  {
+    return OPTIMAL;
+  }
+  
+} //namespace lemon
+