Container of bits.

This class provides a simple container of bits. Each bit can be set and tested via the functions SetBitNumber and TestBitNumber.The default value of all bits is kFALSE. The size of the container is automatically extended when a bit number is either set or tested. To reduce the memory size of the container use the Compact function, this will discard the memory occupied by the upper bits that are 0.

Definition at line 33 of file TBits.h.

Classes
class	TReference

Public Member Functions
	TBits (UInt_t nbits=8)

	TBits (const TBits &)
	TBits copy constructor. More...

TBits &	operator= (const TBits &)
	TBits assignment operator. More...

virtual	~TBits ()
	TBits destructor. More...

void	ResetAllBits (Bool_t value=kFALSE)
	Reset all bits to 0 (false). More...

void	ResetBitNumber (UInt_t bitnumber)

void	SetBitNumber (UInt_t bitnumber, Bool_t value=kTRUE)

Bool_t	TestBitNumber (UInt_t bitnumber) const

TBits::TReference	operator[] (UInt_t bitnumber)

Bool_t	operator[] (UInt_t bitnumber) const

TBits &	operator&= (const TBits &rhs)

TBits &	operator\|= (const TBits &rhs)

TBits &	operator^= (const TBits &rhs)

TBits &	operator<<= (UInt_t rhs)

TBits &	operator>>= (UInt_t rhs)

TBits	operator<< (UInt_t rhs)

TBits	operator>> (UInt_t rhs)

TBits	operator~ ()

void	Set (UInt_t nbits, const Char_t *array)
	Set all the bytes. More...

void	Set (UInt_t nbits, const UChar_t *array)

void	Set (UInt_t nbits, const Short_t *array)

void	Set (UInt_t nbits, const UShort_t *array)

void	Set (UInt_t nbits, const Int_t *array)

void	Set (UInt_t nbits, const UInt_t *array)

void	Set (UInt_t nbits, const Long64_t *array)

void	Set (UInt_t nbits, const ULong64_t *array)

void	Get (Char_t *array) const
	Copy all the byes. More...

void	Get (UChar_t *array) const

void	Get (Short_t *array) const

void	Get (UShort_t *array) const

void	Get (Int_t *array) const

void	Get (UInt_t *array) const

void	Get (Long64_t *array) const

void	Get (ULong64_t *array) const

void	Clear (Option_t *option="")
	Clear the value. More...

void	Compact ()
	Reduce the storage used by the object to a minimun. More...

UInt_t	CountBits (UInt_t startBit=0) const
	Return number of bits set to 1 starting at bit startBit. More...

UInt_t	FirstNullBit (UInt_t startBit=0) const
	Return position of first null bit (starting from position 0 and up) More...

UInt_t	FirstSetBit (UInt_t startBit=0) const
	Return position of first non null bit (starting from position 0 and up) More...

UInt_t	LastNullBit (UInt_t startBit=999999999) const
	Return position of first null bit (starting from position 0 and up) More...

UInt_t	LastSetBit (UInt_t startBit=999999999) const
	Return position of first non null bit (starting from position 0 and up) More...

UInt_t	GetNbits () const

UInt_t	GetNbytes () const

Bool_t	operator== (const TBits &other) const

Bool_t	operator!= (const TBits &other) const

void	Paint (Option_t *option="")
	Once implemented, it will draw the bit field as an histogram. More...

void	Print (Option_t *option="") const
	Print the list of active bits. More...

void	Output (std::ostream &) const
	Print the value to the std::ostream. More...

Public Member Functions inherited from TObject
	TObject ()

	TObject (const TObject &object)
	TObject copy ctor. More...

TObject &	operator= (const TObject &rhs)
	TObject assignment operator. More...

virtual	~TObject ()
	TObject destructor. More...

virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad. More...

virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action. More...

virtual const char *	ClassName () const
	Returns name of class to which the object belongs. More...

virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility. More...

virtual Int_t	Compare (const TObject *obj) const
	Compare abstract method. More...

virtual void	Copy (TObject &object) const
	Copy this to obj. More...

virtual void	Delete (Option_t *option="")
	Delete this object. More...

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object. More...

virtual void	Draw (Option_t *option="")
	Default Draw method for all objects. More...

virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs. More...

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current pad. More...

virtual void	Dump () const
	Dump contents of object on stdout. More...

virtual void	Execute (const char method, const char params, Int_t *error=0)
	Execute method on this object with the given parameter string, e.g. More...

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=0)
	Execute method on this object with parameters stored in the TObjArray. More...

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py). More...

virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes. More...

virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes. More...

virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object. More...

virtual UInt_t	GetUniqueID () const
	Return the unique object id. More...

virtual const char *	GetName () const
	Returns name of object. More...

virtual const char *	GetIconName () const
	Returns mime type name of object. More...

virtual Option_t *	GetOption () const

virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py). More...

virtual const char *	GetTitle () const
	Returns title of object. More...

virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out. More...

virtual ULong_t	Hash () const
	Return hash value for this object. More...

virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname". More...

virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl. More...

virtual void	Inspect () const
	Dump contents of this object in a graphics canvas. More...

virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...

virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory). More...

virtual Bool_t	IsSortable () const

Bool_t	IsOnHeap () const

Bool_t	IsZombie () const

virtual Bool_t	Notify ()
	This method must be overridden to handle object notification. More...

virtual void	ls (Option_t *option="") const
	The ls function lists the contents of a class on stdout. More...

virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list. More...

virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory. More...

virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list. More...

virtual void	SaveAs (const char filename="", Option_t option="") const
	Save this object in the file specified by filename. More...

virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out". More...

virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object. More...

virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id. More...

virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory. More...

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory. More...

void *	operator new (size_t sz)

void *	operator new[] (size_t sz)

void *	operator new (size_t sz, void *vp)

void *	operator new[] (size_t sz, void *vp)

void	operator delete (void *ptr)
	Operator delete. More...

void	operator delete[] (void *ptr)
	Operator delete []. More...

void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f. More...

void	SetBit (UInt_t f)

void	ResetBit (UInt_t f)

Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

void	InvertBit (UInt_t f)

virtual void	Info (const char method, const char msgfmt,...) const
	Issue info message. More...

virtual void	Warning (const char method, const char msgfmt,...) const
	Issue warning message. More...

virtual void	Error (const char method, const char msgfmt,...) const
	Issue error message. More...

virtual void	SysError (const char method, const char msgfmt,...) const
	Issue system error message. More...

virtual void	Fatal (const char method, const char msgfmt,...) const
	Issue fatal error message. More...

void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...

void	MayNotUse (const char *method) const
	Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...

void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete. More...

Protected Member Functions
void	ReserveBytes (UInt_t nbytes)
	Reverse each bytes. More...

void	DoAndEqual (const TBits &rhs)
	Execute `(*this) &= rhs;` Extra bits in rhs are ignored Missing bits in rhs are assumed to be zero. More...

void	DoOrEqual (const TBits &rhs)
	Execute `(*this) &= rhs;` Extra bits in rhs are ignored Missing bits in rhs are assumed to be zero. More...

void	DoXorEqual (const TBits &rhs)
	Execute `(*this) ^= rhs;` Extra bits in rhs are ignored Missing bits in rhs are assumed to be zero. More...

void	DoLeftShift (UInt_t shift)
	Execute the left shift operation. More...

void	DoRightShift (UInt_t shift)
	Execute the left shift operation. More...

void	DoFlip ()
	Execute `~(*this)` More...

Protected Member Functions inherited from TObject
void	MakeZombie ()

virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected). More...

Protected Attributes
UInt_t	fNbits

UInt_t	fNbytes

UChar_t *	fAllBits

Additional Inherited Members
Public Types inherited from TObject
enum	EStatusBits { kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13) }

enum	{ kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff }

enum	{ kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }

Static Public Member Functions inherited from TObject
static Long_t	GetDtorOnly ()
	Return destructor only flag. More...

static void	SetDtorOnly (void *obj)
	Set destructor only flag. More...

static Bool_t	GetObjectStat ()
	Get status of object stat flag. More...

static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable. More...

#include <TBits.h>

Inheritance diagram for TBits:

[legend]

Constructor & Destructor Documentation

TBits::TBits ( UInt_t nbits = 8 )

Referenced by operator<<(), and operator>>().

TBits::TBits ( const TBits & original )

TBits copy constructor.

Definition at line 42 of file TBits.cxx.

TBits::~TBits ( )

virtual

TBits destructor.

Definition at line 73 of file TBits.cxx.

Member Function Documentation

void TBits::Clear ( Option_t * option = "" )

virtual

Clear the value.

Reimplemented from TObject.

Definition at line 81 of file TBits.cxx.

Referenced by TLinearFitter::Clear().

void TBits::Compact ( )

Reduce the storage used by the object to a minimun.

Definition at line 92 of file TBits.cxx.

UInt_t TBits::CountBits ( UInt_t startBit = 0 ) const

Return number of bits set to 1 starting at bit startBit.

Definition at line 115 of file TBits.cxx.

void TBits::DoAndEqual ( const TBits & rhs )

protected

Execute (*this) &= rhs; Extra bits in rhs are ignored Missing bits in rhs are assumed to be zero.

Definition at line 162 of file TBits.cxx.

Referenced by operator&=().

void TBits::DoFlip ( )

protected

Execute ~(*this)

Definition at line 202 of file TBits.cxx.

Referenced by operator~().

void TBits::DoLeftShift ( UInt_t shift )

protected

Execute the left shift operation.

Definition at line 213 of file TBits.cxx.

Referenced by operator<<=().

void TBits::DoOrEqual ( const TBits & rhs )

protected

Execute (*this) &= rhs; Extra bits in rhs are ignored Missing bits in rhs are assumed to be zero.

Definition at line 178 of file TBits.cxx.

Referenced by operator|=().

void TBits::DoRightShift ( UInt_t shift )

protected

Execute the left shift operation.

Definition at line 236 of file TBits.cxx.

Referenced by operator>>=().

void TBits::DoXorEqual ( const TBits & rhs )

protected

Execute (*this) ^= rhs; Extra bits in rhs are ignored Missing bits in rhs are assumed to be zero.

Definition at line 191 of file TBits.cxx.

Referenced by operator^=().

UInt_t TBits::FirstNullBit ( UInt_t startBit = 0 ) const

Return position of first null bit (starting from position 0 and up)

Definition at line 261 of file TBits.cxx.

Referenced by TProcessUUID::AddUUID().

UInt_t TBits::FirstSetBit ( UInt_t startBit = 0 ) const

Return position of first non null bit (starting from position 0 and up)

Definition at line 345 of file TBits.cxx.

Referenced by operator==(), and TSelectorDraw::ProcessFillObject().

void TBits::Get ( Char_t * array ) const

Copy all the byes.

Definition at line 502 of file TBits.cxx.

void TBits::Get ( UChar_t * array ) const

inline

Definition at line 125 of file TBits.h.

Referenced by Get().

void TBits::Get ( Short_t * array ) const

Definition at line 619 of file TBits.cxx.

void TBits::Get ( UShort_t * array ) const

inline

Definition at line 127 of file TBits.h.

Referenced by Get().

void TBits::Get ( Int_t * array ) const

Definition at line 637 of file TBits.cxx.

void TBits::Get ( UInt_t * array ) const

inline

Definition at line 129 of file TBits.h.

Referenced by Get().

void TBits::Get ( Long64_t * array ) const

Definition at line 658 of file TBits.cxx.

void TBits::Get ( ULong64_t * array ) const

inline

Definition at line 131 of file TBits.h.

Referenced by Get().

UInt_t TBits::GetNbits ( ) const

inline

Definition at line 141 of file TBits.h.

Referenced by TSelectorDraw::ProcessFillObject().

UInt_t TBits::GetNbytes ( ) const

inline

Definition at line 142 of file TBits.h.

UInt_t TBits::LastNullBit ( UInt_t startBit = 999999999 ) const

Return position of first null bit (starting from position 0 and up)

Definition at line 306 of file TBits.cxx.

UInt_t TBits::LastSetBit ( UInt_t startBit = 999999999 ) const

Return position of first non null bit (starting from position 0 and up)

Definition at line 390 of file TBits.cxx.

Bool_t TBits::operator!= ( const TBits & other ) const

inline

Definition at line 145 of file TBits.h.

TBits& TBits::operator&= ( const TBits & rhs )

inline

Definition at line 93 of file TBits.h.

TBits TBits::operator<< ( UInt_t rhs )

inline

Definition at line 98 of file TBits.h.

TBits& TBits::operator<<= ( UInt_t rhs )

inline

Definition at line 96 of file TBits.h.

TBits & TBits::operator= ( const TBits & rhs )

TBits assignment operator.

Definition at line 53 of file TBits.cxx.

Bool_t TBits::operator== ( const TBits & other ) const

Definition at line 685 of file TBits.cxx.

TBits TBits::operator>> ( UInt_t rhs )

inline

Definition at line 99 of file TBits.h.

TBits& TBits::operator>>= ( UInt_t rhs )

inline

Definition at line 97 of file TBits.h.

TBits::TReference TBits::operator[] ( UInt_t bitnumber )

inline

Definition at line 90 of file TBits.h.

Bool_t TBits::operator[] ( UInt_t bitnumber ) const

inline

Definition at line 241 of file TBits.h.

TBits& TBits::operator^= ( const TBits & rhs )

inline

Definition at line 95 of file TBits.h.

TBits& TBits::operator|= ( const TBits & rhs )

inline

Definition at line 94 of file TBits.h.

TBits TBits::operator~ ( )

inline

Definition at line 100 of file TBits.h.

void TBits::Output ( std::ostream & os ) const

Print the value to the std::ostream.

Definition at line 429 of file TBits.cxx.

Referenced by operator<<().

void TBits::Paint ( Option_t * option = "" )

virtual

Once implemented, it will draw the bit field as an histogram.

use the TVirtualPainter as the usual trick

Reimplemented from TObject.

Definition at line 444 of file TBits.cxx.

void TBits::Print ( Option_t * option = "" ) const

virtual

Print the list of active bits.

Reimplemented from TObject.

Definition at line 451 of file TBits.cxx.

void TBits::ReserveBytes ( UInt_t nbytes )

protected

Reverse each bytes.

Definition at line 475 of file TBits.cxx.

Referenced by Set().

void TBits::ResetAllBits ( Bool_t value = kFALSE )

Reset all bits to 0 (false).

Definition at line 467 of file TBits.cxx.

Referenced by TMessage::WriteObject().

void TBits::ResetBitNumber ( UInt_t bitnumber )

inline

Definition at line 236 of file TBits.h.

void TBits::Set	(	UInt_t	nbits,
		const Char_t *	array
	)

Set all the bytes.

Definition at line 489 of file TBits.cxx.

void TBits::Set	(	UInt_t	nbits,
		const UChar_t *	array
	)

inline

Definition at line 107 of file TBits.h.

Referenced by Set().

void TBits::Set	(	UInt_t	nbits,
		const Short_t *	array
	)

Definition at line 563 of file TBits.cxx.

void TBits::Set	(	UInt_t	nbits,
		const UShort_t *	array
	)

inline

Definition at line 109 of file TBits.h.

Referenced by Set().

void TBits::Set	(	UInt_t	nbits,
		const Int_t *	array
	)

Definition at line 579 of file TBits.cxx.

void TBits::Set	(	UInt_t	nbits,
		const UInt_t *	array
	)

inline

Definition at line 111 of file TBits.h.

Referenced by Set().

void TBits::Set	(	UInt_t	nbits,
		const Long64_t *	array
	)

Definition at line 597 of file TBits.cxx.

void TBits::Set	(	UInt_t	nbits,
		const ULong64_t *	array
	)

inline

Definition at line 113 of file TBits.h.

Referenced by Set().

void TBits::SetBitNumber	(	UInt_t	bitnumber,
		Bool_t	value = `kTRUE`
	)

inline

Definition at line 198 of file TBits.h.

Referenced by TProcessUUID::AddUUID(), TLinearFitter::EvalRobust(), TLinearFitter::GetFitSample(), TBits::TReference::operator=(), ResetBitNumber(), TGMainFrame::SaveSource(), TGTransientFrame::SaveSource(), TUDPSocket::SendStreamerInfos(), TSocket::SendStreamerInfos(), and TMessage::WriteProcessID().

Bool_t TBits::TestBitNumber ( UInt_t bitnumber ) const

inline

Definition at line 223 of file TBits.h.

Referenced by TLinearFitter::GetFitSample(), TBits::TReference::operator=(), operator[](), TGMainFrame::SaveSource(), TGTransientFrame::SaveSource(), TUDPSocket::SendStreamerInfos(), TSocket::SendStreamerInfos(), TMessage::TestBitNumber(), and TMessage::WriteProcessID().

Member Data Documentation

UChar_t* TBits::fAllBits

protected

Definition at line 39 of file TBits.h.

Referenced by Clear(), Compact(), CountBits(), DoAndEqual(), DoFlip(), DoLeftShift(), DoOrEqual(), DoRightShift(), DoXorEqual(), FirstNullBit(), FirstSetBit(), Get(), LastNullBit(), LastSetBit(), operator=(), operator==(), Output(), Print(), ReserveBytes(), ResetAllBits(), Set(), SetBitNumber(), TBits(), TestBitNumber(), and ~TBits().

UInt_t TBits::fNbits

protected

Definition at line 37 of file TBits.h.

Referenced by Clear(), Compact(), CountBits(), FirstNullBit(), FirstSetBit(), Get(), GetNbits(), LastNullBit(), LastSetBit(), operator=(), operator==(), Set(), SetBitNumber(), and TestBitNumber().

UInt_t TBits::fNbytes

protected

Definition at line 38 of file TBits.h.

Referenced by Clear(), Compact(), CountBits(), DoAndEqual(), DoFlip(), DoLeftShift(), DoOrEqual(), DoRightShift(), DoXorEqual(), FirstNullBit(), FirstSetBit(), GetNbytes(), operator=(), Output(), Print(), ReserveBytes(), ResetAllBits(), SetBitNumber(), and TBits().

Collaboration diagram for TBits:

[legend]

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

core/cont/inc/TBits.h
core/cont/src/TBits.cxx

Classes

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation