--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lowlevellibsandfws/apputils/inc/Babitflags.h	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,261 @@
+// Copyright (c) 1999-2009 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:
+//
+
+#ifndef __BABITFLAGS_H__
+#define __BABITFLAGS_H__
+
+// System includes
+#include <e32std.h>
+
+//
+// ----> TBitFlagsT (header)
+//
+template <class T>
+class TBitFlagsT
+/**
+A simple class which manages the process of setting and clearing
+flags in an abstract fashion.
+@publishedAll
+@released
+*/
+	{
+//
+public:										// CONSTRUCT
+//
+
+	/**
+	 * Default constructor - initialize all flags to zero
+	 */
+	inline TBitFlagsT();
+
+	/**
+	 * Initialize the whole flag to a certain value
+	 */
+	inline TBitFlagsT(T aFlags);
+
+	/**
+	 * Copy constructor - initialize this flag object to mirror
+	 * that of aFlags.
+	 */
+	inline TBitFlagsT(const TBitFlagsT& aFlags);
+
+//
+public:										// MANIPULATORS
+//
+
+	/**
+	 * Set all the flags
+	 */
+	inline void								SetAll();
+
+	/**
+	 * Clear all the flags
+	 */
+	inline void								ClearAll();
+
+	/**
+	 * Set a particular flag
+	 */
+	inline void								Set(TInt aFlagIndex);
+
+	/**
+	 * Clear a particular flag
+	 */
+	inline void								Clear(TInt aFlagIndex);
+
+	/**
+	 * Set or clear a particular flag 
+	 * 
+	 * If aValue is 1, then the flag is set
+	 * If aValue is 0, then the flag is cleared
+	 */
+	inline void								Assign(TInt aFlagIndex, TBool aValue);
+
+	/**
+	 * Change the state of a particular flag. If the flag at the specified
+	 * index was clear, then it becomes set, otherwise it becomes clear.
+	 */
+	inline void								Toggle(TInt aFlagIndex);
+
+//
+public:										// OPERATORS
+//
+
+	/**
+	 * Check if a particular flag is set or not
+	 *
+	 * @return A boolean indicating whether the specified flag is set or clear
+	 */
+	inline TBool							operator[](TInt aFlagIndex) const;
+
+	/**
+	 * Assignment operator - assign specific value to the whole flag, replacing
+	 * any existing value.
+	 */
+	inline TBitFlagsT&						operator=(const TBitFlagsT& aFlags);
+
+	/**
+	 * Compare the value of the whole flag with a given value.
+	 *
+	 * @return A boolean indicating whether the two flags are identical.
+	 */
+	inline TBool							operator==(const TBitFlagsT& aFlags);
+
+//
+public:										// ACCESS
+//
+
+	/**
+	 * Check if a particular flag is set
+	 */
+	inline TBool							IsSet(TInt aFlagIndex) const;
+
+	/**
+	 * Check if a particular flag is clear
+	 */
+	inline TBool							IsClear(TInt aFlagIndex) const;
+
+	/**
+	 * Access the underlying value of the flag.
+	 */
+	inline T								Value() const { return iFlags; }
+
+	/**
+	 * Assign a new value (directly) to this flag object. Replaces any
+	 * existing individual flag settings.
+	 */
+	inline void								SetValue(T aFlags) { iFlags = aFlags; }
+
+//
+private:									// INTERNAL
+//
+
+	/**
+	 * Generate a mask for a particular flag
+	 */
+	inline T								FlagMask(TInt aFlagIndex) const;
+
+//
+public:										// MEMBER DATA
+//
+	
+	// The underlying object container which represents the flags.
+	T										iFlags;
+	};
+
+/**
+Type definitions
+@publishedAll
+@released
+*/
+typedef TBitFlagsT<TUint8> TBitFlags8;
+//
+
+/**
+Type definitions
+@publishedAll
+@released
+*/
+typedef TBitFlagsT<TUint16> TBitFlags16;
+//
+
+/**
+Type definitions
+@publishedAll
+@released
+*/
+typedef TBitFlagsT<TUint32>	TBitFlags32;
+//
+
+
+typedef TBitFlags32 TBitFlags;
+
+
+//
+// ----> TBitFlagsT (inlines)
+//
+template <class T>
+inline TBitFlagsT<T>::TBitFlagsT() : iFlags(T(0)) 
+	{}
+
+template <class T>
+inline TBitFlagsT<T>::TBitFlagsT(T aFlags) : iFlags(aFlags) 
+	{}
+
+template <class T>
+inline TBitFlagsT<T>::TBitFlagsT(const TBitFlagsT<T>& aFlags) : iFlags(aFlags.iFlags) 
+	{}
+
+template <class T>
+inline T TBitFlagsT<T>::FlagMask(TInt aFlagIndex) const
+	{ return T(T(1)<<aFlagIndex); }
+
+template <class T>
+inline TBool TBitFlagsT<T>::IsSet(TInt aFlagIndex) const
+	{ 
+	// All out-of-range values should return  false
+	if(aFlagIndex <= ((sizeof(T)<<3)-1) )
+		{
+		return iFlags & FlagMask(aFlagIndex);
+		}
+	else
+		{
+		return EFalse;
+		}
+	 
+	}
+
+template <class T>
+inline TBool TBitFlagsT<T>::IsClear(TInt aFlagIndex) const
+	{ return !IsSet(aFlagIndex); }
+
+template <class T>
+inline void TBitFlagsT<T>::Set(TInt aFlagIndex)
+	{ iFlags = T(iFlags | FlagMask(aFlagIndex)); }
+
+template <class T>
+inline void TBitFlagsT<T>::Clear(TInt aFlagIndex)
+	{ iFlags = T(iFlags & ~(FlagMask(aFlagIndex))); }
+
+template <class T>
+inline void TBitFlagsT<T>::Assign(TInt aFlagIndex, TBool aVal)
+	{ if (aVal) Set(aFlagIndex); else Clear(aFlagIndex); }
+
+template <class T>
+inline void TBitFlagsT<T>::Toggle(TInt aFlagIndex)
+	{ iFlags = T(iFlags^FlagMask(aFlagIndex)); }
+
+template <class T>
+inline TBool TBitFlagsT<T>::operator[](TInt aFlagIndex) const
+	{ return IsSet(aFlagIndex); }
+
+template <class T>
+inline TBitFlagsT<T>& TBitFlagsT<T>::operator=(const TBitFlagsT<T>& aFlags)
+	{ iFlags = aFlags.iFlags; return *this; }
+
+template <class T>
+inline TBool TBitFlagsT<T>::operator==(const TBitFlagsT<T>& aFlags)
+	{ return iFlags == aFlags.Value(); }
+
+template <class T>
+inline void TBitFlagsT<T>::SetAll()
+	{ iFlags = T(~(T(0))); }
+
+template <class T>
+inline void TBitFlagsT<T>::ClearAll()
+	{ iFlags = T(0); }
+
+
+#endif