diff -r 736a341e604b -r eba5aa390aca lemon/clp.h
--- a/lemon/clp.h	Thu Jan 21 08:36:53 2021 +0100
+++ b/lemon/clp.h	Thu Jan 21 18:58:37 2021 +0100
@@ -139,6 +139,8 @@
 
     virtual void _messageLevel(MessageLevel);
 
+    void _write(std::string file, std::string format) const;
+
   public:
 
     ///Solves LP with primal simplex method.