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# ntqbitarray.h

This is the verbatim text of the ntqbitarray.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    ** $Id: qt/ntqbitarray.h   3.3.8   edited Jan 11 14:38 $
    **
    ** Definition of TQBitArray class
    **
    ** Created : 940118
    **
    ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of the tools module of the TQt GUI Toolkit.
    **
    ** This file may be used under the terms of the GNU General Public
    ** License versions 2.0 or 3.0 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file. Alternatively you may (at your option) use any
    ** later version of the GNU General Public License if such license has
    ** been publicly approved by Trolltech ASA (or its successors, if any)
    ** and the KDE Free TQt Foundation.
    **
    ** Please review the following information to ensure GNU General
    ** Public Licensing requirements will be met:
    ** http://trolltech.com/products/qt/licenses/licensing/opensource/.
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
    ** or contact the sales department at sales@trolltech.com.
    **
    ** This file may be used under the terms of the Q Public License as
    ** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
    ** included in the packaging of this file.  Licensees holding valid TQt
    ** Commercial licenses may use this file in accordance with the TQt
    ** Commercial License Agreement provided with the Software.
    **
    ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
    ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
    ** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
    ** herein.
    **
    **********************************************************************/

    #ifndef TQBITARRAY_H
    #define TQBITARRAY_H

    #ifndef QT_H
    #include "ntqstring.h"
    #endif // QT_H

    /*****************************************************************************
      TQBitVal class; a context class for TQBitArray::operator[]
     *****************************************************************************/

    class TQBitArray;

    class Q_EXPORT TQBitVal
    {
    private:
        TQBitArray *array;
        uint    index;
    public:
        TQBitVal( TQBitArray *a, uint i ) : array(a), index(i) {}
        operator int();
        TQBitVal &operator=( const TQBitVal &v );
        TQBitVal &operator=( bool v );
    };

    /*****************************************************************************
      TQBitArray class
     *****************************************************************************/

    class Q_EXPORT TQBitArray : public TQByteArray
    {
    public:
        TQBitArray();
        TQBitArray( uint size );
        TQBitArray( const TQBitArray &a ) : TQByteArray( a ) {}

        TQBitArray &operator=( const TQBitArray & );

        uint    size() const;
        bool    resize( uint size );

        bool    fill( bool v, int size = -1 );

        void    detach();
        TQBitArray copy() const;

        bool    testBit( uint index ) const;
        void    setBit( uint index );
        void    setBit( uint index, bool value );
        void    clearBit( uint index );
        bool    toggleBit( uint index );

        bool    at( uint index ) const;
        TQBitVal operator[]( int index );
        bool operator[]( int index ) const;

        TQBitArray &operator&=( const TQBitArray & );
        TQBitArray &operator|=( const TQBitArray & );
        TQBitArray &operator^=( const TQBitArray & );
        TQBitArray  operator~() const;

    protected:
        struct bitarr_data : public TQGArray::array_data {
    	uint   nbits;
        };
        array_data *newData()		    { return new bitarr_data; }
        void	deleteData( array_data *d ) { delete (bitarr_data*)d; }
    private:
        void    pad0();
    };

    inline TQBitArray &TQBitArray::operator=( const TQBitArray &a )
    { return (TQBitArray&)assign( a ); }

    inline uint TQBitArray::size() const
    { return ((bitarr_data*)sharedBlock())->nbits; }

    inline void TQBitArray::setBit( uint index, bool value )
    { if ( value ) setBit(index); else clearBit(index); }

    inline bool TQBitArray::at( uint index ) const
    { return testBit(index); }

    inline TQBitVal TQBitArray::operator[]( int index )
    { return TQBitVal( (TQBitArray*)this, index ); }

    inline bool TQBitArray::operator[]( int index ) const
    { return testBit( index ); }

    /*****************************************************************************
      Misc. TQBitArray operator functions
     *****************************************************************************/

    Q_EXPORT TQBitArray operator&( const TQBitArray &, const TQBitArray & );
    Q_EXPORT TQBitArray operator|( const TQBitArray &, const TQBitArray & );
    Q_EXPORT TQBitArray operator^( const TQBitArray &, const TQBitArray & );

    inline TQBitVal::operator int()
    {
        return array->testBit( index );
    }

    inline TQBitVal &TQBitVal::operator=( const TQBitVal &v )
    {
        array->setBit( index, v.array->testBit(v.index) );
        return *this;
    }

    inline TQBitVal &TQBitVal::operator=( bool v )
    {
        array->setBit( index, v );
        return *this;
    }

    /*****************************************************************************
      TQBitArray stream functions
     *****************************************************************************/
    #ifndef QT_NO_DATASTREAM
    Q_EXPORT TQDataStream &operator<<( TQDataStream &, const TQBitArray & );
    Q_EXPORT TQDataStream &operator>>( TQDataStream &, TQBitArray & );
    #endif

    #endif // TQBITARRAY_H