ROOT
6.06/09
Reference Guide
|
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.
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>
TBits::TBits | ( | UInt_t | nbits = 8 | ) |
Referenced by operator<<(), and operator>>().
TBits::TBits | ( | const TBits & | original | ) |
Clear the value.
Reimplemented from TObject.
Definition at line 80 of file TBits.cxx.
Referenced by TLinearFitter::Clear().
void TBits::Compact | ( | ) |
Execute (*this) &= rhs;
Extra bits in rhs are ignored Missing bits in rhs are assumed to be zero.
Definition at line 161 of file TBits.cxx.
Referenced by operator&=().
|
protected |
Execute the left shift operation.
Definition at line 212 of file TBits.cxx.
Referenced by operator<<=().
Execute (*this) &= rhs;
Extra bits in rhs are ignored Missing bits in rhs are assumed to be zero.
Definition at line 177 of file TBits.cxx.
Referenced by operator|=().
Execute the left shift operation.
Definition at line 235 of file TBits.cxx.
Referenced by operator>>=().
Execute (*this) ^= rhs;
Extra bits in rhs are ignored Missing bits in rhs are assumed to be zero.
Definition at line 190 of file TBits.cxx.
Referenced by operator^=().
Return position of first null bit (starting from position 0 and up)
Definition at line 260 of file TBits.cxx.
Referenced by TProcessUUID::AddUUID().
Return position of first non null bit (starting from position 0 and up)
Definition at line 344 of file TBits.cxx.
Referenced by operator==(), and TSelectorDraw::ProcessFillObject().
|
inline |
Definition at line 141 of file TBits.h.
Referenced by TSelectorDraw::ProcessFillObject().
|
inline |
|
inline |
void TBits::Output | ( | std::ostream & | os | ) | const |
Print the value to the std::ostream.
Definition at line 428 of file TBits.cxx.
Referenced by operator<<().
Reset all bits to 0 (false).
Definition at line 466 of file TBits.cxx.
Referenced by TMessage::WriteObject().
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().
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().
|
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().
|
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().
|
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().