QBitArray Class Reference

#include <qbitarray.h>

Class Description

Definition at line 54 of file qbitarray.h.

Public Types
typedef QByteArray::DataPtr	DataPtr

Public Member Functions
	QBitArray ()
	QBitArray (int size, bool val=false)
	QBitArray (const QBitArray &other)
QBitArray &	operator= (const QBitArray &other)
void	swap (QBitArray &other)
int	size () const
int	count () const
int	count (bool on) const
bool	isEmpty () const
bool	isNull () const
void	resize (int size)
void	detach ()
bool	isDetached () const
void	clear ()
bool	testBit (int i) const
void	setBit (int i)
void	setBit (int i, bool val)
void	clearBit (int i)
bool	toggleBit (int i)
bool	at (int i) const
QBitRef	operator[] (int i)
bool	operator[] (int i) const
QBitRef	operator[] (uint i)
bool	operator[] (uint i) const
QBitArray &	operator&= (const QBitArray &)
QBitArray &	operator|= (const QBitArray &)
QBitArray &	operator^= (const QBitArray &)
QBitArray	operator~ () const
bool	operator== (const QBitArray &a) const
bool	operator!= (const QBitArray &a) const
bool	fill (bool val, int size=-1)
void	fill (bool val, int first, int last)
void	truncate (int pos)
DataPtr &	data_ptr ()

Friends
Q_CORE_EXPORT QDataStream &	operator<< (QDataStream &, const QBitArray &)
Q_CORE_EXPORT QDataStream &	operator>> (QDataStream &, QBitArray &)
Q_CORE_EXPORT uint	qHash (const QBitArray &key)

Member Typedef Documentation

typedef QByteArray::DataPtr DataPtr

Definition at line 113 of file qbitarray.h.

Constructor & Destructor Documentation

QBitArray ( )

inline

Definition at line 62 of file qbitarray.h.

{}

QBitArray ( int  size, bool  val = false  )

explicit

QBitArray ( const QBitArray &  other )

inline

Definition at line 64 of file qbitarray.h.

: d(other.d) {}

Member Function Documentation

QBitArray& operator= ( const QBitArray &  other )

inline

Definition at line 65 of file qbitarray.h.

{ d = other.d; return *this; }

void swap ( QBitArray &  other )

inline

Definition at line 71 of file qbitarray.h.

{ qSwap(d, other.d); }

int size ( ) const

inline

Definition at line 73 of file qbitarray.h.

{ return (d.size() << 3) - *d.constData(); }

int count ( ) const

inline

Definition at line 74 of file qbitarray.h.

{ return (d.size() << 3) - *d.constData(); }

int count

(

bool

on

)

const

bool isEmpty ( ) const

inline

Definition at line 78 of file qbitarray.h.

{ return d.isEmpty(); }

bool isNull ( ) const

inline

Definition at line 79 of file qbitarray.h.

{ return d.isNull(); }

void resize

(

int

size

)

void detach ( )

inline

Definition at line 83 of file qbitarray.h.

{ d.detach(); }

bool isDetached ( ) const

inline

Definition at line 84 of file qbitarray.h.

{ return d.isDetached(); }

void clear ( )

inline

Definition at line 85 of file qbitarray.h.

{ d.clear(); }

bool testBit ( int  i ) const

inline

Definition at line 124 of file qbitarray.h.

{ Q_ASSERT(uint(i) < uint(size()));
 return (*(reinterpret_cast<const uchar*>(d.constData())+1+(i>>3)) & (1 << (i & 7))) != 0; }

void setBit ( int  i )

inline

Definition at line 128 of file qbitarray.h.

{ Q_ASSERT(uint(i) < uint(size()));
 *(reinterpret_cast<uchar*>(d.data())+1+(i>>3)) |= uchar(1 << (i & 7)); }

void setBit ( int  i, bool  val  )

inline

Definition at line 136 of file qbitarray.h.

{ if (val) setBit(i); else clearBit(i); }

void clearBit ( int  i )

inline

Definition at line 132 of file qbitarray.h.

{ Q_ASSERT(uint(i) < uint(size()));
 *(reinterpret_cast<uchar*>(d.data())+1+(i>>3)) &= ~uchar(1 << (i & 7)); }

bool toggleBit ( int  i )

inline

Definition at line 139 of file qbitarray.h.

{ Q_ASSERT(uint(i) < uint(size()));
 uchar b = uchar(1<<(i&7)); uchar* p = reinterpret_cast<uchar*>(d.data())+1+(i>>3);
 uchar c = uchar(*p&b); *p^=b; return c!=0; }

bool at ( int  i ) const

inline

Definition at line 146 of file qbitarray.h.

{ return testBit(i); }

QBitRef operator[] ( int  i )

inline

Definition at line 162 of file qbitarray.h.

{ Q_ASSERT(i >= 0); return QBitRef(*this, i); }

bool operator[] ( int  i ) const

inline

Definition at line 144 of file qbitarray.h.

{ return testBit(i); }

QBitRef operator[] ( uint  i )

inline

Definition at line 164 of file qbitarray.h.

{ return QBitRef(*this, i); }

bool operator[] ( uint  i ) const

inline

Definition at line 145 of file qbitarray.h.

{ return testBit(i); }

QBitArray& operator&=

(

const QBitArray &

)

QBitArray& operator|=

(

const QBitArray &

)

QBitArray& operator^=

(

const QBitArray &

)

QBitArray operator~

(

)

const

bool operator== ( const QBitArray &  a ) const

inline

Definition at line 104 of file qbitarray.h.

{ return d == a.d; }

bool operator!= ( const QBitArray &  a ) const

inline

Definition at line 105 of file qbitarray.h.

{ return d != a.d; }

bool fill ( bool  val, int  size = -1  )

inline

Definition at line 117 of file qbitarray.h.

{ *this = QBitArray((asize < 0 ? this->size() : asize), aval); return true; }

void fill	(	bool	val,
		int	first,
		int	last
	)

void truncate ( int  pos )

inline

Definition at line 110 of file qbitarray.h.

{ if (pos < size()) resize(pos); }

DataPtr& data_ptr ( )

inline

Definition at line 114 of file qbitarray.h.

{ return d.data_ptr(); }

Friends And Related Function Documentation

Q_CORE_EXPORT QDataStream& operator<< ( QDataStream &  , const QBitArray &    )

friend

Q_CORE_EXPORT QDataStream& operator>> ( QDataStream &  , QBitArray &    )

friend

Q_CORE_EXPORT uint qHash ( const QBitArray &  key )

friend

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The documentation for this class was generated from the following file:

• QtCore/qbitarray.h