--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/secureswitools/swisistools/source/interpretsislib/version.cpp	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,71 @@
+/*
+* Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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 "version.h"
+
+bool Version::IsValid() const
+{
+	return ((iMajor >= 0 && iMajor <= 127) &&
+			(iMinor >= 0 && iMinor <= 99)  &&
+			(iBuild >= 0 && iBuild <= 32767));
+}
+
+bool operator==(const Version& aLhs, const Version& aRhs)
+{
+	return 
+		aLhs.iMajor == aRhs.iMajor 
+		&& aLhs.iMinor == aRhs.iMinor 
+		&& aLhs.iBuild == aRhs.iBuild;
+}
+
+bool operator<(const Version& aLhs, const Version& aRhs)
+{
+	return (aLhs != aRhs) && !(aLhs > aRhs);
+}
+
+bool operator>(const Version& aLhs, const Version& aRhs)
+{
+	if (aLhs == aRhs || aLhs.iMajor < aRhs.iMajor) return false;
+
+	if (aLhs.iMajor > aRhs.iMajor)
+		return true;
+	else if (aLhs.iMinor == aRhs.iMinor) // major ==
+		return aLhs.iBuild > aRhs.iBuild;
+	else if (aLhs.iMinor > aRhs.iMinor) 
+		return true;
+	else // minor ==
+		return aLhs.iBuild > aRhs.iBuild;
+
+	return false;
+}
+
+bool operator!=(const Version& aLhs, const Version& aRhs)
+{
+	return !(aLhs == aRhs);
+}
+
+bool operator<=(const Version& aLhs, const Version& aRhs)
+{
+	return (aLhs == aRhs) || aLhs < aRhs;
+}
+
+bool operator>=(const Version& aLhs, const Version& aRhs)
+{
+	return (aLhs == aRhs) || aLhs > aRhs;
+
+}