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#ifndef Q3GARRAY_H

#define Q3GARRAY_H

#include <Qt3Support/q3shared.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Qt3SupportLight)

class Q_COMPAT_EXPORT Q3GArray					// generic array

{

    friend class QBuffer;

public:

    // do not use this, even though this is public

    struct array_data : public Q3Shared {	// shared array

	array_data():data(0),len(0)

#ifdef QT_QGARRAY_SPEED_OPTIM

		    ,maxl(0)

#endif

	    {}

	char *data;				// actual array data

	uint  len;

#ifdef QT_QGARRAY_SPEED_OPTIM

	uint maxl;

#endif

    };

    Q3GArray();

    enum Optimization { MemOptim, SpeedOptim };

protected:

    Q3GArray(int, int);			// dummy; does not alloc

    Q3GArray(int size);			// allocate 'size' bytes

    Q3GArray(const Q3GArray &a);		// shallow copy

    virtual ~Q3GArray();

    Q3GArray    &operator=(const Q3GArray &a) { return assign(a); }

    virtual void detach()	{ duplicate(*this); }

    // ### Qt 4.0: maybe provide two versions of data(), at(), etc.

    char       *data()	 const	{ return shd->data; }

    uint	nrefs()	 const	{ return shd->count; }

    uint	size()	 const	{ return shd->len; }

    bool	isEqual(const Q3GArray &a) const;

    bool	resize(uint newsize, Optimization optim);

    bool	resize(uint newsize);

    bool	fill(const char *d, int len, uint sz);

    Q3GArray    &assign(const Q3GArray &a);

    Q3GArray    &assign(const char *d, uint len);

    Q3GArray    &duplicate(const Q3GArray &a);

    Q3GArray    &duplicate(const char *d, uint len);

    void	store(const char *d, uint len);

    array_data *sharedBlock()	const		{ return shd; }

    void	setSharedBlock(array_data *p) { shd=(array_data*)p; }

    Q3GArray    &setRawData(const char *d, uint len);

    void	resetRawData(const char *d, uint len);

    int		find(const char *d, uint index, uint sz) const;

    int		contains(const char *d, uint sz) const;

    void	sort(uint sz);

    int		bsearch(const char *d, uint sz) const;

    char       *at(uint index) const;

    bool	setExpand(uint index, const char *d, uint sz);

protected:

    virtual array_data *newData();

    virtual void deleteData(array_data *p);

private:

    static void msg_index(uint);

    array_data *shd;

};

inline char *Q3GArray::at(uint index) const

{

#if defined(QT_CHECK_RANGE)

    if (index >= size()) {

	msg_index(index);

	index = 0;

    }

#endif

    return &shd->data[index];

}

QT_END_NAMESPACE

QT_END_HEADER

#endif // Q3GARRAY_H