diff -r 000000000000 -r dfb7c4ff071f commsfwtools/commstools/utracedecoder/src/messagedefparser/statemachinebase.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/commsfwtools/commstools/utracedecoder/src/messagedefparser/statemachinebase.cpp	Thu Dec 17 09:22:25 2009 +0200
@@ -0,0 +1,40 @@
+// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+#include <stddef.h>
+
+#include "messagedefparser\statemachinebase.h"
+#include "messagedefparser\statebase.h"
+
+CStateMachineBase::CStateMachineBase()
+    {
+    iCurrentState = NULL;
+    iLastState = NULL;
+    }
+
+CStateMachineBase::~CStateMachineBase()
+    {
+    delete iCurrentState;
+    delete iLastState;
+    }
+
+void CStateMachineBase::SetState(CStateBase* aNewState)
+    {
+    delete iLastState;
+    iLastState = iCurrentState;
+    iCurrentState = aNewState;
+    iCurrentState->EnterState();
+    }
+