TBufferFile Class Reference

The concrete implementation of TBuffer for writing/reading to/from a ROOT file or socket.

Definition at line 47 of file TBufferFile.h.

Public Types
enum	{ kStreamedMemberWise = (1ULL << (14)) }
enum	{ kSingleKey = (1ULL << (0)) , kOverwrite = (1ULL << (1)) , kWriteDelete = (1ULL << (2)) }
enum	{   kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,   kBitMask = 0x00ffffff }
enum	{ kInitialSize = 1024 , kMinimalSize = 128 }
enum	{ kMapSize = 503 }
enum	EDeprecatedStatusBits { kObjInCanvas = (1ULL << (3)) }
enum	EMode { kRead = 0 , kWrite = 1 }
enum	EStatusBits {   kNotDecompressed = (1ULL << (15)) , kTextBasedStreaming = (1ULL << (18)) , kUser1 = (1ULL << (21)) , kUser2 = (1ULL << (22)) ,   kUser3 = (1ULL << (23)) }

Public Member Functions
	TBufferFile (TBuffer::EMode mode)
	Create an I/O buffer object.
	TBufferFile (TBuffer::EMode mode, Int_t bufsize)
	Create an I/O buffer object.
	TBufferFile (TBuffer::EMode mode, Int_t bufsize, void *buf, Bool_t adopt=kTRUE, ReAllocCharFun_t reallocfunc=nullptr)
	Create an I/O buffer object.
	~TBufferFile () override
	Delete an I/O buffer object.
void	AbstractMethod (const char *method) const
	Call this function within a function that you don't want to define as purely virtual, in order not to force all users deriving from that class to implement that maybe (on their side) unused function; but at the same time, emit a run-time warning if they try to call it, telling that it is not implemented in the derived class: action must thus be taken on the user side to override it.
virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad.
Int_t	ApplySequence (const TStreamerInfoActions::TActionSequence &sequence, void *object) override
	Read one collection of objects from the buffer using the StreamerInfoLoopAction.
Int_t	ApplySequence (const TStreamerInfoActions::TActionSequence &sequence, void *start_collection, void *end_collection) override
	Read one collection of objects from the buffer using the StreamerInfoLoopAction.
Int_t	ApplySequenceVecPtr (const TStreamerInfoActions::TActionSequence &sequence, void *start_collection, void *end_collection) override
	Read one collection of objects from the buffer using the StreamerInfoLoopAction.
void	AutoExpand (Int_t size_needed)
	Automatically calculate a new size and expand the buffer to fit at least size_needed.
virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action.
char *	Buffer () const
Int_t	BufferSize () const
Bool_t	ByteSwapBuffer (Long64_t n, EDataType type)
	Byte-swap N primitive-elements in the buffer.
Int_t	CheckByteCount (UInt_t startpos, UInt_t bcnt, const char *classname) override
	Check byte count with current buffer position.
Int_t	CheckByteCount (UInt_t startpos, UInt_t bcnt, const TClass *clss) override
	Check byte count with current buffer position.
ULong_t	CheckedHash ()
	Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.
Bool_t	CheckObject (const TObject *obj) override
	Check if the specified object is already in the buffer.
Bool_t	CheckObject (const void *obj, const TClass *ptrClass) override
	Check if the specified object of the specified class is already in the buffer.
void	ClassBegin (const TClass *, Version_t=-1) override
void	ClassEnd (const TClass *) override
void	ClassMember (const char *, const char *=nullptr, Int_t=-1, Int_t=-1) override
virtual const char *	ClassName () const
	Returns name of class to which the object belongs.
virtual void	Clear (Option_t *="")
virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility.
virtual Int_t	Compare (const TObject *obj) const
	Compare abstract method.
virtual void	Copy (TObject &object) const
	Copy this to obj.
void	DecrementLevel (TVirtualStreamerInfo *) override
	Decrement level.
virtual void	Delete (Option_t *option="")
	Delete this object.
void	DetachBuffer ()
virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object.
virtual void	Draw (Option_t *option="")
	Default Draw method for all objects.
virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs.
virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1).
virtual void	Dump () const
	Dump contents of object on stdout.
virtual void	Error (const char *method, const char *msgfmt,...) const
	Issue error message.
virtual void	Execute (const char *method, const char *params, Int_t *error=nullptr)
	Execute method on this object with the given parameter string, e.g.
virtual void	Execute (TMethod *method, TObjArray *params, Int_t *error=nullptr)
	Execute method on this object with parameters stored in the TObjArray.
virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py).
void	Expand (Int_t newsize, Bool_t copy=kTRUE)
	Expand (or shrink) the I/O buffer to newsize bytes.
virtual void	Fatal (const char *method, const char *msgfmt,...) const
	Issue fatal error message.
virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes.
virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes.
void	ForceWriteInfo (TVirtualStreamerInfo *info, Bool_t force) override
	force writing the TStreamerInfo to the file
void	ForceWriteInfoClones (TClonesArray *a) override
	Make sure TStreamerInfo is not optimized, otherwise it will not be possible to support schema evolution in read mode.
Int_t	GetBufferDisplacement () const override
Int_t	GetBufferVersion () const
char *	GetCurrent () const
virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object.
virtual const char *	GetIconName () const
	Returns mime type name of object.
TVirtualStreamerInfo *	GetInfo () override
TProcessID *	GetLastProcessID (TRefTable *reftable) const override
	Return the last TProcessID in the file.
Int_t	GetMapCount () const override
void	GetMappedObject (UInt_t tag, void *&ptr, TClass *&ClassPtr) const override
	Retrieve the object stored in the buffer's object map at 'tag' Set ptr and ClassPtr respectively to the address of the object and a pointer to its TClass.
virtual const char *	GetName () const
	Returns name of object.
virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py).
virtual Option_t *	GetOption () const
TObject *	GetParent () const
	Return pointer to parent of this buffer.
UShort_t	GetPidOffset () const override
ReAllocCharFun_t	GetReAllocFunc () const
	Return the reallocation method currently used.
virtual const char *	GetTitle () const
	Returns title of object.
UInt_t	GetTRefExecId () override
	Return the exec id stored in the current TStreamerInfo element.
virtual UInt_t	GetUniqueID () const
	Return the unique object id.
Int_t	GetVersionOwner () const override
	Return the version number of the owner file.
virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out.
virtual ULong_t	Hash () const
	Return hash value for this object.
Bool_t	HasInconsistentHash () const
	Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.
void	IncrementLevel (TVirtualStreamerInfo *info) override
	Increment level.
virtual void	Info (const char *method, const char *msgfmt,...) const
	Issue info message.
virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname".
virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl.
void	InitMap () override
	Create the fMap container and initialize them with the null object.
virtual void	Inspect () const
	Dump contents of this object in a graphics canvas.
void	InvertBit (UInt_t f)
TClass *	IsA () const override
Bool_t	IsDestructed () const
	IsDestructed.
virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory).
virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).
Bool_t	IsOnHeap () const
Bool_t	IsReading () const
virtual Bool_t	IsSortable () const
Bool_t	IsWriting () const
Bool_t	IsZombie () const
Int_t	Length () const
virtual void	ls (Option_t *option="") const
	The ls function lists the contents of a class on stdout.
void	MapObject (const TObject *obj, UInt_t offset=1) override
	Add object to the fMap container.
void	MapObject (const void *obj, const TClass *cl, UInt_t offset=1) override
	Add object to the fMap container.
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).
virtual Bool_t	Notify ()
	This method must be overridden to handle object notification (the base implementation is no-op).
void	Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete.
void	operator delete (void *, size_t)
	Operator delete for sized deallocation.
void	operator delete (void *ptr)
	Operator delete.
void	operator delete (void *ptr, void *vp)
	Only called by placement new when throwing an exception.
void	operator delete[] (void *, size_t)
	Operator delete [] for sized deallocation.
void	operator delete[] (void *ptr)
	Operator delete [].
void	operator delete[] (void *ptr, void *vp)
	Only called by placement new[] when throwing an exception.
void *	operator new (size_t sz)
void *	operator new (size_t sz, void *vp)
void *	operator new[] (size_t sz)
void *	operator new[] (size_t sz, void *vp)
virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself.
virtual TVirtualArray *	PeekDataCache () const
	Return the 'current' data cache area from the list of area to be used for temporarily store 'missing' data members.
virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list.
virtual TVirtualArray *	PopDataCache ()
	Pop and Return the 'current' data cache area from the list of area to be used for temporarily store 'missing' data members.
virtual void	Print (Option_t *option="") const
	This method must be overridden when a class wants to print itself.
virtual void	PushDataCache (TVirtualArray *)
	Push a new data cache area onto the list of area to be used for temporarily store 'missing' data members.
Int_t	ReadArray (Bool_t *&b) override
	Read array of bools from the I/O buffer.
Int_t	ReadArray (Char_t *&c) override
	Read array of characters from the I/O buffer.
Int_t	ReadArray (Double_t *&d) override
	Read array of doubles from the I/O buffer.
Int_t	ReadArray (Float_t *&f) override
	Read array of floats from the I/O buffer.
Int_t	ReadArray (Int_t *&i) override
	Read array of ints from the I/O buffer.
Int_t	ReadArray (Long64_t *&l) override
	Read array of long longs from the I/O buffer.
Int_t	ReadArray (Long_t *&l) override
	Read array of longs from the I/O buffer.
Int_t	ReadArray (Short_t *&h) override
	Read array of shorts from the I/O buffer.
Int_t	ReadArray (UChar_t *&c) override
Int_t	ReadArray (UInt_t *&i) override
Int_t	ReadArray (ULong64_t *&l) override
Int_t	ReadArray (ULong_t *&l) override
Int_t	ReadArray (UShort_t *&h) override
Int_t	ReadArrayDouble32 (Double_t *&d, TStreamerElement *ele=nullptr) override
	Read array of doubles (written as float) from the I/O buffer.
Int_t	ReadArrayFloat16 (Float_t *&f, TStreamerElement *ele=nullptr) override
	Read array of floats (written as truncated float) from the I/O buffer.
void	ReadBool (Bool_t &b) override
Int_t	ReadBuf (void *buf, Int_t max) override
	Read max bytes from the I/O buffer into buf.
void	ReadChar (Char_t &c) override
void	ReadCharP (Char_t *c) override
void	ReadCharStar (char *&s) override
	Read char* from TBuffer.
TClass *	ReadClass (const TClass *cl=nullptr, UInt_t *objTag=nullptr) override
	Read class definition from I/O buffer.
Int_t	ReadClassBuffer (const TClass *cl, void *pointer, const TClass *onfile_class) override
	Deserialize information from a buffer into an object.
Int_t	ReadClassBuffer (const TClass *cl, void *pointer, Int_t version, UInt_t start, UInt_t count, const TClass *onfile_class) override
	Deserialize information from a buffer into an object.
Int_t	ReadClassEmulated (const TClass *cl, void *object, const TClass *onfile_class) override
	Read emulated class.
Int_t	ReadClones (TClonesArray *a, Int_t nobjects, Version_t objvers) override
	Interface to TStreamerInfo::ReadBufferClones.
void	ReadDouble (Double_t &d) override
void	ReadDouble32 (Double_t *d, TStreamerElement *ele=nullptr) override
	Read a Double32_t from the buffer, see comments about Double32_t encoding at TBufferFile::WriteDouble32().
void	ReadFastArray (Bool_t *b, Int_t n) override
	Read array of n bools from the I/O buffer.
void	ReadFastArray (Char_t *c, Int_t n) override
	Read array of n characters from the I/O buffer.
void	ReadFastArray (Double_t *d, Int_t n) override
	Read array of n doubles from the I/O buffer.
void	ReadFastArray (Float_t *f, Int_t n) override
	Read array of n floats from the I/O buffer.
void	ReadFastArray (Int_t *i, Int_t n) override
	Read array of n ints from the I/O buffer.
void	ReadFastArray (Long64_t *l, Int_t n) override
	Read array of n long longs from the I/O buffer.
void	ReadFastArray (Long_t *l, Int_t n) override
	Read array of n longs from the I/O buffer.
void	ReadFastArray (Short_t *h, Int_t n) override
	Read array of n shorts from the I/O buffer.
void	ReadFastArray (UChar_t *c, Int_t n) override
void	ReadFastArray (UInt_t *i, Int_t n) override
void	ReadFastArray (ULong64_t *l, Int_t n) override
void	ReadFastArray (ULong_t *l, Int_t n) override
void	ReadFastArray (UShort_t *h, Int_t n) override
void	ReadFastArray (void **startp, const TClass *cl, Int_t n=1, Bool_t isPreAlloc=kFALSE, TMemberStreamer *s=nullptr, const TClass *onFileClass=nullptr) override
	Read an array of 'n' objects from the I/O buffer.
void	ReadFastArray (void *start, const TClass *cl, Int_t n=1, TMemberStreamer *s=nullptr, const TClass *onFileClass=nullptr) override
	Read an array of 'n' objects from the I/O buffer.
void	ReadFastArrayDouble32 (Double_t *d, Int_t n, TStreamerElement *ele=nullptr) override
	Read array of n doubles (written as float) from the I/O buffer.
void	ReadFastArrayFloat16 (Float_t *f, Int_t n, TStreamerElement *ele=nullptr) override
	Read array of n floats (written as truncated float) from the I/O buffer.
void	ReadFastArrayString (Char_t *c, Int_t n) override
	Read array of n characters from the I/O buffer.
void	ReadFastArrayWithFactor (Double_t *ptr, Int_t n, Double_t factor, Double_t minvalue) override
	Read array of n doubles (written as float) from the I/O buffer.
void	ReadFastArrayWithFactor (Float_t *ptr, Int_t n, Double_t factor, Double_t minvalue) override
	Read array of n floats (written as truncated float) from the I/O buffer.
void	ReadFastArrayWithNbits (Double_t *ptr, Int_t n, Int_t nbits) override
	Read array of n doubles (written as float) from the I/O buffer.
void	ReadFastArrayWithNbits (Float_t *ptr, Int_t n, Int_t nbits) override
	Read array of n floats (written as truncated float) from the I/O buffer.
void	ReadFloat (Float_t &f) override
void	ReadFloat16 (Float_t *f, TStreamerElement *ele=nullptr) override
	Read a Float16_t from the buffer, see comments about Float16_t encoding at TBufferFile::WriteFloat16().
void	ReadInt (Int_t &i) override
void	ReadLong (Long_t &l) override
	Read Long from TBuffer.
void	ReadLong64 (Long64_t &l) override
TObject *	ReadObject (const TClass *cl) override
	Read object from I/O buffer.
void *	ReadObjectAny (const TClass *cast) override
	Read object from I/O buffer.
TProcessID *	ReadProcessID (UShort_t pidf) override
	The TProcessID with number pidf is read from file.
void	ReadShort (Short_t &s) override
Int_t	ReadStaticArray (Bool_t *b) override
	Read array of bools from the I/O buffer.
Int_t	ReadStaticArray (Char_t *c) override
	Read array of characters from the I/O buffer.
Int_t	ReadStaticArray (Double_t *d) override
	Read array of doubles from the I/O buffer.
Int_t	ReadStaticArray (Float_t *f) override
	Read array of floats from the I/O buffer.
Int_t	ReadStaticArray (Int_t *i) override
	Read array of ints from the I/O buffer.
Int_t	ReadStaticArray (Long64_t *l) override
	Read array of long longs from the I/O buffer.
Int_t	ReadStaticArray (Long_t *l) override
	Read array of longs from the I/O buffer.
Int_t	ReadStaticArray (Short_t *h) override
	Read array of shorts from the I/O buffer.
Int_t	ReadStaticArray (UChar_t *c) override
Int_t	ReadStaticArray (UInt_t *i) override
Int_t	ReadStaticArray (ULong64_t *l) override
Int_t	ReadStaticArray (ULong_t *l) override
Int_t	ReadStaticArray (UShort_t *h) override
Int_t	ReadStaticArrayDouble32 (Double_t *d, TStreamerElement *ele=nullptr) override
	Read array of doubles (written as float) from the I/O buffer.
Int_t	ReadStaticArrayFloat16 (Float_t *f, TStreamerElement *ele=nullptr) override
	Read array of floats (written as truncated float) from the I/O buffer.
virtual void	ReadStdString (std::string &s)
void	ReadStdString (std::string *s) override
	Read std::string from TBuffer.
char *	ReadString (char *s, Int_t max) override
	Read string from I/O buffer.
void	ReadTString (TString &s) override
	Read TString from TBuffer.
void	ReadUChar (UChar_t &c) override
void	ReadUInt (UInt_t &i) override
void	ReadULong (ULong_t &l) override
void	ReadULong64 (ULong64_t &l) override
void	ReadUShort (UShort_t &s) override
Version_t	ReadVersion (UInt_t *start=nullptr, UInt_t *bcnt=nullptr, const TClass *cl=nullptr) override
	Read class version from I/O buffer.
Version_t	ReadVersionForMemberWise (const TClass *cl=nullptr) override
	Read class version from I/O buffer.
Version_t	ReadVersionNoCheckSum (UInt_t *start=nullptr, UInt_t *bcnt=nullptr) override
	Read class version from I/O buffer, when the caller knows for sure that there is no checksum written/involved.
void	ReadWithFactor (Double_t *ptr, Double_t factor, Double_t minvalue) override
	Read a Double32_t from the buffer when the factor and minimum value have been specified see comments about Double32_t encoding at TBufferFile::WriteDouble32().
void	ReadWithFactor (Float_t *ptr, Double_t factor, Double_t minvalue) override
	Read a Float16_t from the buffer when the factor and minimum value have been specified see comments about Double32_t encoding at TBufferFile::WriteDouble32().
void	ReadWithNbits (Double_t *ptr, Int_t nbits) override
	Read a Double32_t from the buffer when the number of bits is specified (explicitly or not) see comments about Double32_t encoding at TBufferFile::WriteDouble32().
void	ReadWithNbits (Float_t *ptr, Int_t nbits) override
	Read a Float16_t from the buffer when the number of bits is specified (explicitly or not) see comments about Float16_t encoding at TBufferFile::WriteFloat16().
virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list.
void	Reset () override
	Reset buffer object. Resets map and buffer offset.
void	ResetBit (UInt_t f)
void	ResetMap () override
	Delete existing fMap and reset map counter.
virtual void	SaveAs (const char *filename="", Option_t *option="") const
	Save this object in the file specified by filename.
virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out".
void	SetBit (UInt_t f)
void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f.
void	SetBuffer (void *buf, UInt_t bufsize=0, Bool_t adopt=kTRUE, ReAllocCharFun_t reallocfunc=nullptr)
	Sets a new buffer in an existing TBuffer object.
void	SetBufferDisplacement () override
void	SetBufferDisplacement (Int_t skipped) override
void	SetBufferOffset (Int_t offset=0)
void	SetByteCount (UInt_t cntpos, Bool_t packInVersion=kFALSE) override
	Set byte count at position cntpos in the buffer.
virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object.
void	SetParent (TObject *parent)
	Set parent owning this buffer.
void	SetPidOffset (UShort_t offset) override
	This offset is used when a key (or basket) is transferred from one file to the other.
void	SetReadMode ()
	Set buffer in read mode.
void	SetReadParam (Int_t mapsize) override
	Set the initial size of the map used to store object and class references during reading.
void	SetReAllocFunc (ReAllocCharFun_t reallocfunc=nullptr)
	Set which memory reallocation method to use.
void	SetStreamerElementNumber (TStreamerElement *, Int_t) override
virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id.
void	SetWriteMode ()
	Set buffer in write mode.
void	SetWriteParam (Int_t mapsize) override
	Set the initial size of the hashtable used to store object and class references during writing.
void	SkipObjectAny () override
	Skip any kind of object from buffer.
void	SkipVersion (const TClass *cl=nullptr) override
	Skip class version from I/O buffer.
void	Streamer (TBuffer &) override
	Stream an object of class TObject.
void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
void	StreamObject (TObject *obj) override
	Stream an object inheriting from TObject using its streamer.
void	StreamObject (void *obj, const char *className, const TClass *onFileClass=nullptr) override
	Stream an object given the name of its actual class.
void	StreamObject (void *obj, const std::type_info &typeinfo, const TClass *onFileClass=nullptr) override
	Stream an object given its C++ typeinfo information.
void	StreamObject (void *obj, const TClass *cl, const TClass *onFileClass=nullptr) override
	Stream an object given a pointer to its actual class.
virtual void	SysError (const char *method, const char *msgfmt,...) const
	Issue system error message.
void	TagStreamerInfo (TVirtualStreamerInfo *info) override
	Mark the classindex of the current file as using this TStreamerInfo.
Bool_t	TestBit (UInt_t f) const
Int_t	TestBits (UInt_t f) const
virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.
virtual void	Warning (const char *method, const char *msgfmt,...) const
	Issue warning message.
void	WriteArray (const Bool_t *b, Int_t n) override
	Write array of n bools into the I/O buffer.
void	WriteArray (const Char_t *c, Int_t n) override
	Write array of n characters into the I/O buffer.
void	WriteArray (const Double_t *d, Int_t n) override
	Write array of n doubles into the I/O buffer.
void	WriteArray (const Float_t *f, Int_t n) override
	Write array of n floats into the I/O buffer.
void	WriteArray (const Int_t *i, Int_t n) override
	Write array of n ints into the I/O buffer.
void	WriteArray (const Long64_t *l, Int_t n) override
	Write array of n long longs into the I/O buffer.
void	WriteArray (const Long_t *l, Int_t n) override
	Write array of n longs into the I/O buffer.
void	WriteArray (const Short_t *h, Int_t n) override
	Write array of n shorts into the I/O buffer.
void	WriteArray (const UChar_t *c, Int_t n) override
void	WriteArray (const UInt_t *i, Int_t n) override
void	WriteArray (const ULong64_t *l, Int_t n) override
void	WriteArray (const ULong_t *l, Int_t n) override
	Write array of n unsigned longs into the I/O buffer.
void	WriteArray (const UShort_t *h, Int_t n) override
void	WriteArrayDouble32 (const Double_t *d, Int_t n, TStreamerElement *ele=nullptr) override
	Write array of n doubles (as float) into the I/O buffer.
void	WriteArrayFloat16 (const Float_t *f, Int_t n, TStreamerElement *ele=nullptr) override
	Write array of n floats (as truncated float) into the I/O buffer.
void	WriteBool (Bool_t b) override
void	WriteBuf (const void *buf, Int_t max) override
	Write max bytes from buf into the I/O buffer.
void	WriteChar (Char_t c) override
void	WriteCharP (const Char_t *c) override
void	WriteCharStar (char *s) override
	Write char* into TBuffer.
void	WriteClass (const TClass *cl) override
	Write class description to I/O buffer.
Int_t	WriteClassBuffer (const TClass *cl, void *pointer) override
	Function called by the Streamer functions to serialize object at p to buffer b.
Int_t	WriteClones (TClonesArray *a, Int_t nobjects) override
	Interface to TStreamerInfo::WriteBufferClones.
void	WriteDouble (Double_t d) override
void	WriteDouble32 (Double_t *d, TStreamerElement *ele=nullptr) override
	Write a Double32_t to the buffer.
void	WriteFastArray (const Bool_t *b, Long64_t n) override
	Write array of n bools into the I/O buffer.
void	WriteFastArray (const Char_t *c, Long64_t n) override
	Write array of n characters into the I/O buffer.
void	WriteFastArray (const Double_t *d, Long64_t n) override
	Write array of n doubles into the I/O buffer.
void	WriteFastArray (const Float_t *f, Long64_t n) override
	Write array of n floats into the I/O buffer.
void	WriteFastArray (const Int_t *i, Long64_t n) override
	Write array of n ints into the I/O buffer.
void	WriteFastArray (const Long64_t *l, Long64_t n) override
	Write array of n long longs into the I/O buffer.
void	WriteFastArray (const Long_t *l, Long64_t n) override
	Write array of n longs into the I/O buffer with 8-byte width.
void	WriteFastArray (const Short_t *h, Long64_t n) override
	Write array of n shorts into the I/O buffer.
void	WriteFastArray (const UChar_t *c, Long64_t n) override
void	WriteFastArray (const UInt_t *i, Long64_t n) override
void	WriteFastArray (const ULong64_t *l, Long64_t n) override
void	WriteFastArray (const ULong_t *l, Long64_t n) override
	Write array of n unsigned longs into the I/O buffer with 8-byte width.
void	WriteFastArray (const UShort_t *h, Long64_t n) override
Int_t	WriteFastArray (void **startp, const TClass *cl, Long64_t n=1, Bool_t isPreAlloc=kFALSE, TMemberStreamer *s=nullptr) override
	Write an array of object starting at the address '*start' and of length 'n' the objects in the array are of class 'cl' 'isPreAlloc' indicates whether the data member is marked with '->' Return:
void	WriteFastArray (void *start, const TClass *cl, Long64_t n=1, TMemberStreamer *s=nullptr) override
	Write an array of object starting at the address 'start' and of length 'n' the objects in the array are assumed to be of class 'cl'.
void	WriteFastArrayDouble32 (const Double_t *d, Long64_t n, TStreamerElement *ele=nullptr) override
	Write array of n doubles (as float) into the I/O buffer.
void	WriteFastArrayFloat16 (const Float_t *f, Long64_t n, TStreamerElement *ele=nullptr) override
	Write array of n floats (as truncated float) into the I/O buffer.
void	WriteFastArrayString (const Char_t *c, Long64_t n) override
	Write array of n characters into the I/O buffer.
void	WriteFloat (Float_t f) override
void	WriteFloat16 (Float_t *f, TStreamerElement *ele=nullptr) override
	Write a Float16_t to the buffer.
void	WriteInt (Int_t i) override
void	WriteLong (Long_t l) override
void	WriteLong64 (Long64_t l) override
template<class T>
Int_t	WriteObject (const T *objptr, Bool_t cacheReuse=kTRUE)
void	WriteObject (const TObject *obj, Bool_t cacheReuse=kTRUE) override
	Write object to I/O buffer.
Int_t	WriteObjectAny (const void *obj, const TClass *ptrClass, Bool_t cacheReuse=kTRUE) override
	Write object to I/O buffer.
UShort_t	WriteProcessID (TProcessID *pid) override
	Check if the ProcessID pid is already in the file.
void	WriteShort (Short_t s) override
void	WriteStdString (const std::string *s) override
	Write std::string to TBuffer.
virtual void	WriteStdString (std::string &s)
void	WriteString (const char *s) override
	Write string to I/O buffer.
void	WriteTString (const TString &s) override
	Write TString to TBuffer.
void	WriteUChar (UChar_t c) override
void	WriteUInt (UInt_t i) override
void	WriteULong (ULong_t l) override
void	WriteULong64 (ULong64_t l) override
void	WriteUShort (UShort_t s) override
UInt_t	WriteVersion (const TClass *cl, Bool_t useBcnt=kFALSE) override
	Write class version to I/O buffer.
UInt_t	WriteVersionMemberWise (const TClass *cl, Bool_t useBcnt=kFALSE) override
	Write class version to I/O buffer after setting the kStreamedMemberWise bit in the version number.

Static Public Member Functions
static TClass *	Class ()
static const char *	Class_Name ()
static constexpr Version_t	Class_Version ()
static const char *	DeclFileName ()
static TClass *	GetClass (const char *className)
	Forward to TROOT::GetClass().
static TClass *	GetClass (const std::type_info &typeinfo)
	Forward to TROOT::GetClass().
static Longptr_t	GetDtorOnly ()
	Return destructor only flag.
static Int_t	GetGlobalReadParam ()
	Get default read map size.
static Int_t	GetGlobalWriteParam ()
	Get default write map size.
static Bool_t	GetObjectStat ()
	Get status of object stat flag.
static void	SetDtorOnly (void *obj)
	Set destructor only flag.
static void	SetGlobalReadParam (Int_t mapsize)
	Set the initial size of the map used to store object and class references during reading.
static void	SetGlobalWriteParam (Int_t mapsize)
	Set the initial size of the map used to store object and class references during reading.
static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable.

Protected Types
enum	{ kNullTag = 0 }
enum	{ kOnlyPrepStep = (1ULL << (3)) }
typedef std::vector< TVirtualArray * >	CacheList_t
typedef std::vector< TStreamerInfo * >	InfoList_t

Protected Member Functions
	TBufferFile ()
	TBufferFile (const TBufferFile &)=delete
	not implemented
Int_t	CheckByteCount (UInt_t startpos, UInt_t bcnt, const TClass *clss, const char *classname)
	Check byte count with current buffer position.
void	CheckCount (UInt_t offset) override
	Check if offset is not too large (< kMaxMapCount) when writing.
UInt_t	CheckObject (UInt_t offset, const TClass *cl, Bool_t readClass=kFALSE)
	Check for object in the read map.
virtual void	DoError (int level, const char *location, const char *fmt, va_list va) const
	Interface to ErrorHandler (protected).
Long64_t	GetObjectTag (const void *obj)
	Returns tag for specified object from objects map (if exists) Returns 0 if object not included into objects map.
void	MakeZombie ()
void	operator= (const TBufferFile &)=delete
	not implemented
Int_t	Read (const char *name) override
	Read contents of object with specified name from the current directory.
bool	ShouldNotReadCollection (Int_t lengthInBytes, Int_t nElements=1) const
Int_t	Write (const char *name, Int_t opt, Int_t bufsize) const override
	Write this object to the current directory.
Int_t	Write (const char *name, Int_t opt, Int_t bufsize) override
	Write this object to the current directory.
void	WriteObjectClass (const void *actualObjStart, const TClass *actualClass, Bool_t cacheReuse) override
	Write object to I/O buffer.

Static Protected Member Functions
static void	SavePrimitiveConstructor (std::ostream &out, TClass *cl, const char *variable_name, const char *constructor_agrs="", Bool_t empty_line=kTRUE)
	Save object constructor in the output stream "out".
static void	SavePrimitiveDraw (std::ostream &out, const char *variable_name, Option_t *option=nullptr)
	Save invocation of primitive Draw() method Skipped if option contains "nodraw" string.
static TString	SavePrimitiveVector (std::ostream &out, const char *prefix, Int_t len, Double_t *arr, Int_t flag=0)
	Save array in the output stream "out" as vector.
static ULong_t	Void_Hash (const void *ptr)
	Return hash value for provided object.

Protected Attributes
char *	fBufCur
char *	fBuffer
char *	fBufMax
Int_t	fBufSize
CacheList_t	fCacheStack
TExMap *	fClassMap {nullptr}
	Map containing object,class pairs for reading.
Int_t	fDisplacement {0}
	Value to be added to the map offsets.
TStreamerInfo *	fInfo {nullptr}
	Pointer to TStreamerInfo object writing/reading the buffer.
InfoList_t	fInfoStack
	Stack of pointers to the TStreamerInfos.
TExMap *	fMap {nullptr}
	Map containing object,offset pairs for reading/writing.
Int_t	fMapCount {0}
	Number of objects or classes in map.
Int_t	fMapSize {0}
	Default size of map.
Bool_t	fMode
TObject *	fParent
UShort_t	fPidOffset {0}
	Offset to be added to the pid index in this key/buffer.
ReAllocCharFun_t	fReAllocFunc
	! Realloc function to be used when extending the buffer.
Int_t	fVersion

Static Protected Attributes
static Int_t	fgMapSize = kMapSize
	Default map size for all TBuffer objects.

Static Private Member Functions
static void	AddToTObjectTable (TObject *)
	Private helper function which will dispatch to TObjectTable::AddObj.

Private Attributes
UInt_t	fBits
	bit field status word
UInt_t	fUniqueID
	object unique identifier

Static Private Attributes
static Longptr_t	fgDtorOnly = 0
	object for which to call dtor only (i.e. no delete)
static Bool_t	fgObjectStat = kTRUE
	if true keep track of objects in TObjectTable

#include <TBufferFile.h>

Inheritance diagram for TBufferFile:

Member Typedef Documentation

CacheList_t

typedef std::vector<TVirtualArray*> TBuffer::CacheList_t

protectedinherited

Definition at line 46 of file TBuffer.h.

InfoList_t

typedef std::vector<TStreamerInfo*> TBufferFile::InfoList_t

protected

Definition at line 50 of file TBufferFile.h.

Member Enumeration Documentation

anonymous enum

anonymous enum

protectedinherited

Enumerator
kNullTag

Definition at line 33 of file TBufferIO.h.

anonymous enum

anonymous enum

Enumerator
kStreamedMemberWise

Definition at line 70 of file TBufferFile.h.

anonymous enum

anonymous enum

protectedinherited

Enumerator

kOnlyPrepStep

Used to request that the class specific implementation of TObject::Write just prepare the objects to be ready to be written but do not actually write them into the TBuffer. This is just for example by TBufferMerger to request that the TTree inside the file calls TTree::FlushBaskets (outside of the merging lock) and TBufferMerger will later ask for the write (inside the merging lock). To take advantage of this feature the class needs to overload TObject::Write and use this enum value accordingly. (See TTree::Write and TObject::Write) Do not use, this feature will be migrate to the Merge function (See TClass and TTree::Merge)

Definition at line 106 of file TObject.h.

anonymous enum

anonymous enum

inherited

Enumerator
kSingleKey	write collection with single key
kOverwrite	overwrite existing object with same name
kWriteDelete	write object, then delete previous key with same name

Definition at line 99 of file TObject.h.

anonymous enum

anonymous enum

inherited

Enumerator
kIsOnHeap	object is on heap
kNotDeleted	object has not been deleted
kZombie	object ctor failed
kInconsistent	class overload Hash but does call RecursiveRemove in destructor
kBitMask

Definition at line 89 of file TObject.h.

anonymous enum

anonymous enum

inherited

Enumerator
kInitialSize
kMinimalSize

Definition at line 78 of file TBuffer.h.

anonymous enum

anonymous enum

inherited

Enumerator
kMapSize

Definition at line 63 of file TBufferIO.h.

EDeprecatedStatusBits

enum TObject::EDeprecatedStatusBits

inherited

Enumerator
kObjInCanvas	for backward compatibility only, use kMustCleanup

Definition at line 84 of file TObject.h.

EMode

enum TBuffer::EMode

inherited

Enumerator
kRead
kWrite

Definition at line 73 of file TBuffer.h.

EStatusBits

enum TBufferIO::EStatusBits

inherited

Enumerator
kNotDecompressed
kTextBasedStreaming
kUser1
kUser2
kUser3

Definition at line 65 of file TBufferIO.h.

Constructor & Destructor Documentation

TBufferFile() [1/5]

TBufferFile::TBufferFile ( )

inlineprotected

Definition at line 56 of file TBufferFile.h.

TBufferFile() [2/5]

TBufferFile::TBufferFile ( const TBufferFile & )

protecteddelete

not implemented

TBufferFile() [3/5]

TBufferFile::TBufferFile

(

TBuffer::EMode

mode

)

Create an I/O buffer object.

Mode should be either TBuffer::kRead or TBuffer::kWrite. By default the I/O buffer has a size of TBuffer::kInitialSize (1024) bytes.

Definition at line 77 of file TBufferFile.cxx.

TBufferFile() [4/5]

TBufferFile::TBufferFile	(	TBuffer::EMode	mode,
		Int_t	bufsize )

Create an I/O buffer object.

Mode should be either TBuffer::kRead or TBuffer::kWrite.

Definition at line 87 of file TBufferFile.cxx.

TBufferFile() [5/5]

TBufferFile::TBufferFile	(	TBuffer::EMode	mode,
		Int_t	bufsize,
		void *	buf,
		Bool_t	adopt = kTRUE,
		ReAllocCharFun_t	reallocfunc = nullptr )

Create an I/O buffer object.

Mode should be either TBuffer::kRead or TBuffer::kWrite. By default the I/O buffer has a size of TBuffer::kInitialSize (1024) bytes. An external buffer can be passed to TBuffer via the buf argument. By default this buffer will be adopted unless adopt is false. If the new buffer is not adopted and no memory allocation routine is provided, a Fatal error will be issued if the Buffer attempts to expand.

Definition at line 104 of file TBufferFile.cxx.

~TBufferFile()

TBufferFile::~TBufferFile ( )

override

Delete an I/O buffer object.

Definition at line 113 of file TBufferFile.cxx.

Member Function Documentation

AbstractMethod()

void TObject::AbstractMethod ( const char * method ) const

inherited

Call this function within a function that you don't want to define as purely virtual, in order not to force all users deriving from that class to implement that maybe (on their side) unused function; but at the same time, emit a run-time warning if they try to call it, telling that it is not implemented in the derived class: action must thus be taken on the user side to override it.

In other word, this method acts as a "runtime purely virtual" warning instead of a "compiler purely virtual" error.

Warning

This interface is a legacy function that is no longer recommended to be used by new development code.

Note

The name "AbstractMethod" does not imply that it's an abstract method in the strict C++ sense.

Definition at line 1149 of file TObject.cxx.

AddToTObjectTable()

void TObject::AddToTObjectTable ( TObject * op )

staticprivateinherited

Private helper function which will dispatch to TObjectTable::AddObj.

Included here to avoid circular dependency between header files.

Definition at line 195 of file TObject.cxx.

AppendPad()

void TObject::AppendPad ( Option_t * option = "" )

virtualinherited

Append graphics object to current pad.

In case no current pad is set yet, create a default canvas with the name "c1".

Definition at line 204 of file TObject.cxx.

ApplySequence() [1/2]

Int_t TBufferFile::ApplySequence ( const TStreamerInfoActions::TActionSequence & sequence, void * obj )

overridevirtual

Read one collection of objects from the buffer using the StreamerInfoLoopAction.

The collection needs to be a split TClonesArray or a split vector of pointers.

Implements TBuffer.

Definition at line 3736 of file TBufferFile.cxx.

ApplySequence() [2/2]

Int_t TBufferFile::ApplySequence ( const TStreamerInfoActions::TActionSequence & sequence, void * start_collection, void * end_collection )

overridevirtual

Read one collection of objects from the buffer using the StreamerInfoLoopAction.

Implements TBuffer.

Definition at line 3796 of file TBufferFile.cxx.

ApplySequenceVecPtr()

Int_t TBufferFile::ApplySequenceVecPtr ( const TStreamerInfoActions::TActionSequence & sequence, void * start_collection, void * end_collection )

overridevirtual

Read one collection of objects from the buffer using the StreamerInfoLoopAction.

The collection needs to be a split TClonesArray or a split vector of pointers.

Implements TBuffer.

Definition at line 3765 of file TBufferFile.cxx.

AutoExpand()

void TBuffer::AutoExpand ( Int_t size_needed )

inherited

Automatically calculate a new size and expand the buffer to fit at least size_needed.

The goals is to minimize the number of memory allocation and the memory allocation which avoiding too much memory wastage.

If the size_needed is larger than the current size, the policy is to expand to double the current size or the size_needed which ever is largest.

Definition at line 157 of file TBuffer.cxx.

Browse()

void TObject::Browse ( TBrowser * b )

virtualinherited

Browse object. May be overridden for another default action.

Reimplemented in RooPlot, ROOT::Experimental::XRooFit::xRooNode, ROOT::Internal::THnBaseBrowsable, TApplicationRemote, TASImage, TAxis3D, TBaseClass, TBranch, TBranchClones, TBranchElement, TBranchObject, TBranchSTL, TBrowserObject, TCanvas, TChain, TClass, TCollection, TCollectionPropertyBrowsable, TDatabasePDG, TDirectory, TDirectoryFile, TEfficiency, TF1, TFolder, TGenerator, TGeoManager, TGeometry, TGeoNode, TGeoOverlap, TGeoTrack, TGeoVolume, TGraph2D, TGraph, TH1, THbookBranch, THbookFile, THbookKey, THnBase, THStack, TKey, TKeyMapFile, TLeaf, TMacro, TMapFile, TMultiDimFit, TMultiGraph, TNode, TNtuple, TNtupleD, TPad, TPair, TParticleClassPDG, TPrincipal, TRecorder, TRemoteObject, TROOT, TRootIconList, TSPlot, TStyle, TSystemDirectory, TSystemFile, TTask, TTree, TTreePerfStats, and TVirtualBranchBrowsable.

Definition at line 218 of file TObject.cxx.

Buffer()

char * TBuffer::Buffer ( ) const

inlineinherited

Definition at line 96 of file TBuffer.h.

BufferSize()

Int_t TBuffer::BufferSize ( ) const

inlineinherited

Definition at line 98 of file TBuffer.h.

ByteSwapBuffer()

Bool_t TBuffer::ByteSwapBuffer ( Long64_t n, EDataType type )

inherited

Byte-swap N primitive-elements in the buffer.

Bulk API relies on this function.

Definition at line 393 of file TBuffer.cxx.

CheckByteCount() [1/3]

Int_t TBufferFile::CheckByteCount ( UInt_t startpos, UInt_t bcnt, const char * classname )

overridevirtual

Check byte count with current buffer position.

They should match. If not print warning and position buffer in correct place determined by the byte count. Startpos is position of first byte where the byte count is written in buffer. Returns 0 if everything is ok, otherwise the bytecount offset (< 0 when read too little, >0 when read too much).

Implements TBuffer.

Definition at line 432 of file TBufferFile.cxx.

CheckByteCount() [2/3]

Int_t TBufferFile::CheckByteCount ( UInt_t startpos, UInt_t bcnt, const TClass * clss )

overridevirtual

Check byte count with current buffer position.

They should match. If not print warning and position buffer in correct place determined by the byte count. Startpos is position of first byte where the byte count is written in buffer. Returns 0 if everything is ok, otherwise the bytecount offset (< 0 when read too little, >0 when read too much).

Implements TBuffer.

Definition at line 418 of file TBufferFile.cxx.

CheckByteCount() [3/3]

Int_t TBufferFile::CheckByteCount ( UInt_t startpos, UInt_t bcnt, const TClass * clss, const char * classname )

protected

Check byte count with current buffer position.

They should match. If not print warning and position buffer in correct place determined by the byte count. Startpos is position of first byte where the byte count is written in buffer. Returns 0 if everything is ok, otherwise the bytecount offset (< 0 when read too little, >0 when read too much).

Definition at line 365 of file TBufferFile.cxx.

CheckCount()

void TBufferFile::CheckCount ( UInt_t offset )

overrideprotectedvirtual

Check if offset is not too large (< kMaxMapCount) when writing.

Reimplemented from TBufferIO.

Definition at line 3250 of file TBufferFile.cxx.

CheckedHash()

ULong_t TObject::CheckedHash ( )

inlineinherited

Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.

The intent is for this routine to be called instead of directly calling the function Hash during "insert" operations. See TObject::HasInconsistenTObjectHash();

(*) The setup is consistent when all classes in the class hierarchy that overload TObject::Hash do call ROOT::CallRecursiveRemoveIfNeeded in their destructor. i.e. it is safe to call the Hash virtual function during the RecursiveRemove operation.

Definition at line 332 of file TObject.h.

CheckObject() [1/3]

Bool_t TBufferIO::CheckObject ( const TObject * obj )

overridevirtual

Check if the specified object is already in the buffer.

Returns kTRUE if object already in the buffer, kFALSE otherwise (also if obj is 0 or TBuffer not in writing mode).

Implements TBuffer.

Definition at line 94 of file TBufferIO.cxx.

CheckObject() [2/3]

Bool_t TBufferIO::CheckObject ( const void * obj, const TClass * ptrClass )

overridevirtual

Check if the specified object of the specified class is already in the buffer.

Returns kTRUE if object already in the buffer, kFALSE otherwise (also if obj is 0 ).

Implements TBuffer.

Definition at line 95 of file TBufferIO.cxx.

CheckObject() [3/3]

UInt_t TBufferFile::CheckObject ( UInt_t offset, const TClass * cl, Bool_t readClass = kFALSE )

protected

Check for object in the read map.

If the object is 0 it still has to be read. Try to read it from the buffer starting at location offset. If the object is -1 then it really does not exist and we return 0. If the object exists just return the offset.

Definition at line 3266 of file TBufferFile.cxx.

Class()

TClass * TBufferFile::Class ( )

static

Returns

TClass describing this class

Class_Name()

const char * TBufferFile::Class_Name ( )

static

Returns

Name of this class

Class_Version()

constexpr Version_t TBufferFile::Class_Version ( )

inlinestaticconstexpr

Returns

Version of this class

Definition at line 266 of file TBufferFile.h.

ClassBegin()

void TBufferFile::ClassBegin ( const TClass * , Version_t = -1 )

inlineoverridevirtual

Implements TBuffer.

Definition at line 95 of file TBufferFile.h.

ClassEnd()

void TBufferFile::ClassEnd ( const TClass * )

inlineoverridevirtual

Implements TBuffer.

Definition at line 96 of file TBufferFile.h.

ClassMember()

void TBufferFile::ClassMember ( const char * , const char * = nullptr, Int_t = -1, Int_t = -1 )

inlineoverridevirtual

Implements TBuffer.

Definition at line 97 of file TBufferFile.h.

ClassName()

const char * TObject::ClassName ( ) const

virtualinherited

Returns name of class to which the object belongs.

Definition at line 227 of file TObject.cxx.

Clear()

virtual void TObject::Clear ( Option_t * = "" )

inlinevirtualinherited

Reimplemented in JetEvent, RooLinkedList, ROOT::TSchemaRule, ROOT::v5::TFormula, TBackCompFitter, TBits, TBranchRef, TBtree, TCanvas, TClonesArray, TCollection, TDictAttributeMap, TDirectory, TEventList, TFitter, TFolder, TFormula, TFumili, TGeoCombiTrans, TGeoGenTrans, TGeoHMatrix, TGeoRotation, TGHtml, TGraph2D, TGTextEdit, TGTextEntry, TGTextView, TGView, THashList, THashTable, TLegend, TLinearFitter, TList, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TMap, TMatrixT< Element >, TMatrixT< AReal >, TMatrixT< Double_t >, TMatrixT< Float_t >, TMatrixTBase< Element >, TMatrixTBase< Double_t >, TMatrixTBase< Float_t >, TMatrixTSparse< Element >, TMatrixTSparse< Double_t >, TMatrixTSparse< Float_t >, TMatrixTSym< Element >, TMatrixTSym< Double_t >, TMatrixTSym< Float_t >, TMrbSubevent_Caen, TMultiDimFit, TMVA::MinuitWrapper, TMVA::ResultsClassification, TMVA::ResultsMulticlass, TMVA::ResultsRegression, TNamed, TNotifyLinkBase, TObjArray, TOrdCollection, TPad, TPaveText, TPrincipal, TProcessID, TRefArray, TRefTable, TStreamerInfo, TTask, TUsrHitBuffer, TVectorT< Element >, TVectorT< Double_t >, TVectorT< Float_t >, TViewPubDataMembers, TViewPubFunctions, TVirtualFitter, TVirtualPad, and TVirtualStreamerInfo.

Definition at line 127 of file TObject.h.

Clone()

TObject * TObject::Clone ( const char * newname = "" ) const

virtualinherited

Make a clone of an object using the Streamer facility.

If the object derives from TNamed, this function is called by TNamed::Clone. TNamed::Clone uses the optional argument to set a new name to the newly created object.

If the object class has a DirectoryAutoAdd function, it will be called at the end of the function with the parameter gDirectory. This usually means that the object will be appended to the current ROOT directory.

Reimplemented in RooAbsArg, RooAbsBinning, RooAbsCollection, RooAbsStudy, RooCatType, RooCmdArg, RooDataHist, RooDataSet, RooFitResult, RooLinkedList, RooStats::HypoTestResult, RooStats::ModelConfig, RooStudyPackage, RooTemplateProxy< T >, RooTemplateProxy< const RooHistFunc >, RooTemplateProxy< RooAbsCategory >, RooTemplateProxy< RooAbsPdf >, RooTemplateProxy< RooAbsReal >, RooTemplateProxy< RooAbsRealLValue >, RooTemplateProxy< RooMultiCategory >, RooTemplateProxy< RooRealVar >, RooWorkspace, TASImage, TChainIndex, TClass, TCollection, TF1, TFunction, TFunctionTemplate, TH1, TImage, TMethod, TMethodCall, TMinuit, TMVA::MinuitWrapper, TNamed, TStreamerInfo, and TTreeIndex.

Definition at line 243 of file TObject.cxx.

Compare()

Int_t TObject::Compare ( const TObject * obj ) const

virtualinherited

Compare abstract method.

Must be overridden if a class wants to be able to compare itself with other objects. Must return -1 if this is smaller than obj, 0 if objects are equal and 1 if this is larger than obj.

Reimplemented in RooAbsArg, RooDouble, TCollection, TEnvRec, TFileInfo, TGeoBranchArray, TGeoOverlap, TGFSFrameElement, TGLBFrameElement, TNamed, TObjString, TParameter< AParamType >, TParameter< Long64_t >, TStructNode, TStructNodeProperty, and TUrl.

Definition at line 258 of file TObject.cxx.

Copy()

void TObject::Copy ( TObject & object ) const

virtualinherited

Copy this to obj.

Reimplemented in ROOT::v5::TFormula, TArc, TArrow, TAxis3D, TAxis, TBox, TColor, TCrown, TDirectory, TDirectoryFile, TEllipse, TF12, TF1, TF1AbsComposition, TF1Convolution, TF1NormSum, TF2, TF3, TFile, TFolder, TFormula, TFrame, TGTextEdit, TGTextView, TH1, TH1C, TH1D, TH1F, TH1I, TH1L, TH1S, TH2, TH2C, TH2D, TH2F, TH2I, TH2L, TH2Poly, TH2S, TH3, TH3C, TH3D, TH3F, TH3I, TH3L, TH3S, THelix, TLatex, TLegend, TLegendEntry, TLine, TMarker, TMathText, TNamed, TPaletteAxis, TPave, TPaveClass, TPaveLabel, TPieSlice, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TProfile2D, TProfile3D, TProfile, TStyle, TSystemDirectory, TSystemFile, TText, TWbox, and TXTRU.

Definition at line 159 of file TObject.cxx.

DeclFileName()

const char * TBufferFile::DeclFileName ( )

inlinestatic

Returns

Name of the file containing the class declaration

Definition at line 266 of file TBufferFile.h.

DecrementLevel()

void TBufferFile::DecrementLevel ( TVirtualStreamerInfo * )

overridevirtual

Decrement level.

Implements TBuffer.

Definition at line 129 of file TBufferFile.cxx.

Delete()

void TObject::Delete ( Option_t * option = "" )

virtualinherited

Delete this object.

Typically called as a command via the interpreter. Normally use "delete" operator when object has been allocated on the heap.

Reimplemented in RooLinkedList, TAxis, TBtree, TCanvas, TClonesArray, TCollection, TDirectory, TDirectoryFile, TExMap, TFile, TGFrame, TGItemContext, TGTextEdit, THashList, THashTable, TKey, TKeySQL, TKeyXML, TList, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TMap, TMVA::Results, TObjArray, TObjectTable, TOrdCollection, TProtoClass, TQCommand, TRefArray, TSystemDirectory, TSystemFile, TThread, TTree, TTreeViewer, TViewPubDataMembers, and TViewPubFunctions.

Definition at line 268 of file TObject.cxx.

DetachBuffer()

void TBuffer::DetachBuffer ( )

inlineinherited

Definition at line 99 of file TBuffer.h.

DistancetoPrimitive()

Int_t TObject::DistancetoPrimitive ( Int_t px, Int_t py )

virtualinherited

Computes distance from point (px,py) to the object.

This member function must be implemented for each graphics primitive. This default function returns a big number (999999).

Reimplemented in TASImage, TAxis3D, TAxis, TBox, TBRIK, TColorWheel, TCrown, TCurlyArc, TCurlyLine, TDiamond, TEfficiency, TEllipse, TF1, TF2, TF3, TFileDrawMap, TGenerator, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoNode, TGeoOverlap, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShape, TGeoShapeAssembly, TGeoSphere, TGeoTessellated, TGeoTorus, TGeoTrack, TGeoTube, TGeoTubeSeg, TGeoVGShape, TGeoVolume, TGeoXtru, TGL5DDataSet, TGLHistPainter, TGLParametricEquation, TGLScenePad, TGLTH3Composition, TGLViewer, TGraph2D, TGraph, TGraphEdge, TGraphNode, TGraphPolargram, TH1, THistPainter, THStack, TLine, TMarker3DBox, TMarker, TMultiGraph, TNode, TPad, TPaletteAxis, TParallelCoord, TParallelCoordRange, TParallelCoordVar, TParticle, TPave, TPCON, TPie, TPieSlice, TPoints3DABC, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TPrimary, TScatter2D, TScatter, TSPHE, TSpider, TSpline, TStyle, TText, TTreePerfStats, TTUBE, TTUBS, TVirtualHistPainter, and TXTRU.

Definition at line 284 of file TObject.cxx.

DoError()

void TObject::DoError ( int level, const char * location, const char * fmt, va_list va ) const

protectedvirtualinherited

Interface to ErrorHandler (protected).

Reimplemented in TThread, and TTreeViewer.

Definition at line 1059 of file TObject.cxx.

Draw()

void TObject::Draw ( Option_t * option = "" )

virtualinherited

Default Draw method for all objects.

Reimplemented in RooAbsData, RooPlot, RooStats::HypoTestInverterPlot, RooStats::SamplingDistPlot, ROOT::Experimental::XRooFit::xRooNLLVar::xRooHypoPoint, ROOT::Experimental::XRooFit::xRooNLLVar::xRooHypoSpace, ROOT::Experimental::XRooFit::xRooNode, ROOT::RGeoPainter, TArrow, TASImage, TBox, TBrowser, TButton, TCanvas, TChain, TClass, TClassTree, TCollection, TColorWheel, TDiamond, TDirectory, TEfficiency, TEllipse, TEveGeoNode, TEveGeoTopNode, TF1, TF2, TF3, TFile, TFITSHDU, TFrame, TGenerator, TGeoBatemanSol, TGeometry, TGeoNode, TGeoOverlap, TGeoPainter, TGeoParallelWorld, TGeoPhysicalNode, TGeoPolygon, TGeoShape, TGeoTrack, TGeoVGShape, TGeoVolume, TGItemContext, TGListTree, TGPicture, TGraph2D, TGraph, TGraphPolar, TGraphPolargram, TGraphStruct, TGraphTime, TH1, THelix, THStack, TLegend, TMarker, TMatrixTBase< Element >, TMatrixTBase< Double_t >, TMatrixTBase< Float_t >, TMultiDimFit, TMultiGraph, TMultiLayerPerceptron, TNode, TNodeDiv, TPad, TParallelCoord, TParallelCoordRange, TParallelCoordVar, TPave, TPaveLabel, TPavesText, TPaveText, TPie, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TRatioPlot, TSpider, TSpline, TStructViewer, TStructViewerGUI, TTree, TTreePerfStats, TVectorT< Element >, TVectorT< Double_t >, TVectorT< Float_t >, TVirtualPad, and TWbox.

Definition at line 293 of file TObject.cxx.

DrawClass()

void TObject::DrawClass ( ) const

virtualinherited

Draw class inheritance tree of the class to which this object belongs.

If a class B inherits from a class A, description of B is drawn on the right side of description of A. Member functions overridden by B are shown in class A with a blue line crossing-out the corresponding member function. The following picture is the class inheritance tree of class TPaveLabel:

Reimplemented in TGFrame, TSystemDirectory, and TSystemFile.

Definition at line 308 of file TObject.cxx.

DrawClone()

TObject * TObject::DrawClone ( Option_t * option = "" ) const

virtualinherited

Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1).

If pad was not selected - gPad will be used.

Note

For histograms, use the more specialised TH1::DrawCopy().

Reimplemented in TAxis, TCanvas, TGFrame, TSystemDirectory, and TSystemFile.

Definition at line 319 of file TObject.cxx.

Dump()

void TObject::Dump ( ) const

virtualinherited

Dump contents of object on stdout.

Using the information in the object dictionary (class TClass) each data member is interpreted. If a data member is a pointer, the pointer value is printed

The following output is the Dump of a TArrow object:

fAngle                   0           Arrow opening angle (degrees)
fArrowSize               0.2         Arrow Size
fOption.*fData
fX1                      0.1         X of 1st point
fY1                      0.15        Y of 1st point
fX2                      0.67        X of 2nd point
fY2                      0.83        Y of 2nd point
fUniqueID                0           object unique identifier
fBits                    50331648    bit field status word
fLineColor               1           line color
fLineStyle               1           line style
fLineWidth               1           line width
fFillColor               19          fill area color
fFillStyle               1001        fill area style

Reimplemented in TClass, TCollection, TGFrame, TGPack, and TSystemFile.

Definition at line 367 of file TObject.cxx.

Error()

void TObject::Error ( const char * location, const char * fmt, ... ) const

virtualinherited

Issue error message.

Use "location" to specify the method where the error occurred. Accepts standard printf formatting arguments.

Reimplemented in TFitResult.

Definition at line 1098 of file TObject.cxx.

Execute() [1/2]

void TObject::Execute ( const char * method, const char * params, Int_t * error = nullptr )

virtualinherited

Execute method on this object with the given parameter string, e.g.

"3.14,1,\"text\"".

Reimplemented in ROOT::R::TRInterface, TCling, TContextMenu, TInterpreter, and TMethodCall.

Definition at line 378 of file TObject.cxx.

Execute() [2/2]

void TObject::Execute ( TMethod * method, TObjArray * params, Int_t * error = nullptr )

virtualinherited

Execute method on this object with parameters stored in the TObjArray.

The TObjArray should contain an argv vector like:

argv[0] ... argv[n] = the list of TObjString parameters

Reimplemented in ROOT::R::TRInterface, TCling, TContextMenu, TInterpreter, and TMethodCall.

Definition at line 398 of file TObject.cxx.

ExecuteEvent()

void TObject::ExecuteEvent ( Int_t event, Int_t px, Int_t py )

virtualinherited

Execute action corresponding to an event at (px,py).

This method must be overridden if an object can react to graphics events.

Reimplemented in TASImage, TASPaletteEditor::LimitLine, TAxis3D, TAxis, TBox, TButton, TCanvas, TCrown, TCurlyArc, TCurlyLine, TDiamond, TEfficiency, TEllipse, TF1, TF2, TF3, TFrame, TGenerator, TGeoManager, TGeoNode, TGeoOverlap, TGeoShape, TGeoTrack, TGeoVolume, TGL5DDataSet, TGLEventHandler, TGLHistPainter, TGLParametricEquation, TGLScenePad, TGLTH3Composition, TGLViewer, TGraph2D, TGraph, TGraphEdge, TGraphNode, TGraphPolargram, TGroupButton, TH1, THistPainter, TLine, TLink, TMarker3DBox, TMarker, TNode, TPad, TPaletteAxis, TParallelCoord, TParallelCoordRange, TParallelCoordVar, TParticle, TPave, TPie, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TPrimary, TScatter2D, TScatter, TSliderBox, TSpider, TSpline, TText, TTreePerfStats, TView3D, TView, TVirtualHistPainter, and TWbox.

Definition at line 415 of file TObject.cxx.

Expand()

void TBuffer::Expand ( Int_t newsize, Bool_t copy = kTRUE )

inherited

Expand (or shrink) the I/O buffer to newsize bytes.

If copy is true (the default), the existing content of the buffer is preserved, otherwise the buffer is returned zero-ed out.

In order to avoid losing data, if the current length is greater than the requested size, we only shrink down to the current length.

Definition at line 222 of file TBuffer.cxx.

Fatal()

void TObject::Fatal ( const char * location, const char * fmt, ... ) const

virtualinherited

Issue fatal error message.

Use "location" to specify the method where the fatal error occurred. Accepts standard printf formatting arguments.

Definition at line 1126 of file TObject.cxx.

FindObject() [1/2]

TObject * TObject::FindObject ( const char * name ) const

virtualinherited

Must be redefined in derived classes.

This function is typically used with TCollections, but can also be used to find an object by name inside this object.

Reimplemented in RooAbsCollection, RooLinkedList, TBtree, TCollection, TDirectory, TFolder, TGeometry, TGraph2D, TGraph, TH1, THashList, THashTable, THbookFile, TList, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TListOfTypes, TMap, TObjArray, TPad, TROOT, TViewPubDataMembers, and TViewPubFunctions.

Definition at line 425 of file TObject.cxx.

FindObject() [2/2]

TObject * TObject::FindObject ( const TObject * obj ) const

virtualinherited

Must be redefined in derived classes.

This function is typically used with TCollections, but can also be used to find an object inside this object.

Reimplemented in RooAbsCollection, RooLinkedList, TBtree, TCollection, TDirectory, TFolder, TGeometry, TGraph2D, TGraph, TH1, THashList, THashTable, THbookFile, TList, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TListOfTypes, TMap, TObjArray, TPad, TROOT, TViewPubDataMembers, and TViewPubFunctions.

Definition at line 435 of file TObject.cxx.

ForceWriteInfo()

void TBufferIO::ForceWriteInfo ( TVirtualStreamerInfo * info, Bool_t force )

overridevirtualinherited

force writing the TStreamerInfo to the file

Implements TBuffer.

Reimplemented in TMessage.

Definition at line 328 of file TBufferIO.cxx.

ForceWriteInfoClones()

void TBufferIO::ForceWriteInfoClones ( TClonesArray * a )

overridevirtualinherited

Make sure TStreamerInfo is not optimized, otherwise it will not be possible to support schema evolution in read mode.

In case the StreamerInfo has already been computed and optimized, one must disable the option BypassStreamer.

Implements TBuffer.

Definition at line 340 of file TBufferIO.cxx.

GetBufferDisplacement()

Int_t TBufferIO::GetBufferDisplacement ( ) const

inlineoverridevirtualinherited

Implements TBuffer.

Definition at line 81 of file TBufferIO.h.

GetBufferVersion()

Int_t TBuffer::GetBufferVersion ( ) const

inlineinherited

Definition at line 85 of file TBuffer.h.

GetClass() [1/2]

TClass * TBuffer::GetClass ( const char * className )

staticinherited

Forward to TROOT::GetClass().

Definition at line 337 of file TBuffer.cxx.

GetClass() [2/2]

TClass * TBuffer::GetClass ( const std::type_info & typeinfo )

staticinherited

Forward to TROOT::GetClass().

Definition at line 329 of file TBuffer.cxx.

GetCurrent()

char * TBuffer::GetCurrent ( ) const

inlineinherited

Definition at line 97 of file TBuffer.h.

GetDrawOption()

Option_t * TObject::GetDrawOption ( ) const

virtualinherited

Get option used by the graphics system to draw this object.

Note that before calling object.GetDrawOption(), you must have called object.Draw(..) before in the current pad.

Reimplemented in TBrowser, TFitEditor, TGedFrame, TGFileBrowser, TRootBrowser, and TRootBrowserLite.

Definition at line 445 of file TObject.cxx.

GetDtorOnly()

Longptr_t TObject::GetDtorOnly ( )

staticinherited

Return destructor only flag.

Definition at line 1196 of file TObject.cxx.

GetGlobalReadParam()

Int_t TBufferIO::GetGlobalReadParam ( )

staticinherited

Get default read map size.

Definition at line 571 of file TBufferIO.cxx.

GetGlobalWriteParam()

Int_t TBufferIO::GetGlobalWriteParam ( )

staticinherited

Get default write map size.

Definition at line 579 of file TBufferIO.cxx.

GetIconName()

const char * TObject::GetIconName ( ) const

virtualinherited

Returns mime type name of object.

Used by the TBrowser (via TGMimeTypes class). Override for class of which you would like to have different icons for objects of the same class.

Reimplemented in ROOT::Experimental::XRooFit::xRooNode, TASImage, TBranch, TBranchElement, TGeoVolume, TGMainFrame, TKey, TMethodBrowsable, TSystemFile, and TVirtualBranchBrowsable.

Definition at line 472 of file TObject.cxx.

GetInfo()

TVirtualStreamerInfo * TBufferFile::GetInfo ( )

inlineoverridevirtual

Implements TBuffer.

Definition at line 94 of file TBufferFile.h.

GetLastProcessID()

TProcessID * TBufferIO::GetLastProcessID ( TRefTable * reftable ) const

overridevirtualinherited

Return the last TProcessID in the file.

Implements TBuffer.

Definition at line 398 of file TBufferIO.cxx.

GetMapCount()

Int_t TBufferIO::GetMapCount ( ) const

inlineoverridevirtualinherited

Implements TBuffer.

Definition at line 91 of file TBufferIO.h.

GetMappedObject()

void TBufferIO::GetMappedObject ( UInt_t tag, void *& ptr, TClass *& ClassPtr ) const

overridevirtualinherited

Retrieve the object stored in the buffer's object map at 'tag' Set ptr and ClassPtr respectively to the address of the object and a pointer to its TClass.

Implements TBuffer.

Definition at line 259 of file TBufferIO.cxx.

GetName()

const char * TObject::GetName ( ) const

virtualinherited

Returns name of object.

This default method returns the class name. Classes that give objects a name should override this method.

Reimplemented in RooAbsCollection, RooCatType, RooLinkedList, TArchiveMember, TCollection, TEnvRec, TEveGeoNode, TGaxis, TGeoDecayChannel, TGeoShape, TGeoVGShape, TGLEmbeddedViewer, TGLPShapeObj, TGLSAViewer, TGMenuEntry, TGMenuTitle, TGPicture, TGWindow, TIconBoxThumb, TMapFile, TMVA::DataSetInfo, TMVA::FitterBase, TMVA::MethodBase, TMVA::OptionBase, TMVA::PDF, TMVA::Reader, TMVA::VariableTransformBase, TNamed, TObjString, TPad, TPair, TParameter< AParamType >, TParameter< Long64_t >, TParticle, TPave, TPolyMarker3D, TPrimary, TQCommand, TQConnection, TQSlot, TRealData, TSQLClassColumnInfo, TSQLClassInfo, TSQLColumnData, TStatistic, TStructNode, TTreePerfStats, TTVRecord, TTVSession, TVirtualGeoTrack, TVirtualPad, and TXMLAttr.

Definition at line 462 of file TObject.cxx.

GetObjectInfo()

char * TObject::GetObjectInfo ( Int_t px, Int_t py ) const

virtualinherited

Returns string containing info about the object at position (px,py).

This method is typically overridden by classes of which the objects can report peculiarities for different positions. Returned string will be re-used (lock in MT environment).

Reimplemented in TASImage, TAxis3D, TColorWheel, TF1, TF2, TFileDrawMap, TGeoNode, TGeoTrack, TGeoVolume, TGL5DDataSet, TGLHistPainter, TGLParametricEquation, TGLTH3Composition, TGraph, TH1, THistPainter, TNode, TPaletteAxis, TParallelCoordVar, and TVirtualHistPainter.

Definition at line 491 of file TObject.cxx.

GetObjectStat()

Bool_t TObject::GetObjectStat ( )

staticinherited

Get status of object stat flag.

Definition at line 1181 of file TObject.cxx.

GetObjectTag()

Long64_t TBufferIO::GetObjectTag ( const void * obj )

protectedinherited

Returns tag for specified object from objects map (if exists) Returns 0 if object not included into objects map.

Definition at line 276 of file TBufferIO.cxx.

GetOption()

virtual Option_t * TObject::GetOption ( ) const

inlinevirtualinherited

Reimplemented in TArrow, TAxis3D, TFile, TGaxis, TGeoVolume, TH1, THelix, TLegendEntry, TMapFile, TNode, TPave, TPoints3DABC, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TPSocket, TSelector, TSocket, and TUDPSocket.

Definition at line 147 of file TObject.h.

GetParent()

TObject * TBuffer::GetParent ( ) const

inherited

Return pointer to parent of this buffer.

Definition at line 261 of file TBuffer.cxx.

GetPidOffset()

UShort_t TBufferIO::GetPidOffset ( ) const

inlineoverridevirtualinherited

Implements TBuffer.

Definition at line 79 of file TBufferIO.h.

GetReAllocFunc()

ReAllocCharFun_t TBuffer::GetReAllocFunc ( ) const

inherited

Return the reallocation method currently used.

Definition at line 276 of file TBuffer.cxx.

GetTitle()

const char * TObject::GetTitle ( ) const

virtualinherited

Returns title of object.

This default method returns the class title (i.e. description). Classes that give objects a title should override this method.

Reimplemented in Axis2, TASImage, TAxis, TBaseClass, TClassMenuItem, TEveGeoNode, TEvePointSet, TGaxis, TGGroupFrame, TGLabel, TGLVEntry, TGTextButton, TGTextEntry, TGTextLBEntry, TKey, TMapFile, TNamed, TPad, TPair, TParallelCoordSelect, TParticle, TPaveLabel, TPrimary, TQCommand, TRootIconList, and TVirtualPad.

Definition at line 507 of file TObject.cxx.

GetTRefExecId()

UInt_t TBufferIO::GetTRefExecId ( )

overridevirtualinherited

Return the exec id stored in the current TStreamerInfo element.

The execid has been saved in the unique id of the TStreamerElement being read by TStreamerElement::Streamer. The current element (fgElement) is set as a static global by TStreamerInfo::ReadBuffer (Clones) when reading this TRef.

Implements TBuffer.

Definition at line 446 of file TBufferIO.cxx.

GetUniqueID()

UInt_t TObject::GetUniqueID ( ) const

virtualinherited

Return the unique object id.

Definition at line 480 of file TObject.cxx.

GetVersionOwner()

Int_t TBufferIO::GetVersionOwner ( ) const

overridevirtualinherited

Return the version number of the owner file.

Implements TBuffer.

Definition at line 76 of file TBufferIO.cxx.

HandleTimer()

Bool_t TObject::HandleTimer ( TTimer * timer )

virtualinherited

Execute action in response of a timer timing out.

This method must be overridden if an object has to react to timers.

Reimplemented in TGCommandPlugin, TGDNDManager, TGFileContainer, TGHtml, TGLEventHandler, TGPopupMenu, TGraphTime, TGScrollBar, TGShutter, TGTextEdit, TGTextEditor, TGTextEntry, TGTextView, TGToolTip, TGuiBldDragManager, TGWindow, and TTreeViewer.

Definition at line 516 of file TObject.cxx.

Hash()

ULong_t TObject::Hash ( ) const

virtualinherited

Return hash value for this object.

Note: If this routine is overloaded in a derived class, this derived class should also add

ROOT::CallRecursiveRemoveIfNeeded(*this)

Otherwise, when RecursiveRemove is called (by ~TObject or example) for this type of object, the transversal of THashList and THashTable containers will will have to be done without call Hash (and hence be linear rather than logarithmic complexity). You will also see warnings like

Error in <ROOT::Internal::TCheckHashRecursiveRemoveConsistency::CheckRecursiveRemove>: The class SomeName overrides
TObject::Hash but does not call TROOT::RecursiveRemove in its destructor.

Reimplemented in RooLinkedList, TASImagePlugin, TASPluginGS, TCollection, TEnvRec, TGObject, TGPicture, TIconBoxThumb, TImagePlugin, TNamed, TObjString, TPad, TPair, TParameter< AParamType >, TParameter< Long64_t >, TPave, and TStatistic.

Definition at line 539 of file TObject.cxx.

HasInconsistentHash()

Bool_t TObject::HasInconsistentHash ( ) const

inlineinherited

Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.

missing call to RecursiveRemove in destructor).

Note: Since the consistency is only tested for during inserts, this routine will return true for object that have never been inserted whether or not they have a consistent setup. This has no negative side-effect as searching for the object with the right or wrong Hash will always yield a not-found answer (Since anyway no hash can be guaranteed unique, there is always a check)

Definition at line 366 of file TObject.h.

IncrementLevel()

void TBufferFile::IncrementLevel ( TVirtualStreamerInfo * info )

overridevirtual

Increment level.

Implements TBuffer.

Definition at line 120 of file TBufferFile.cxx.

Info()

void TObject::Info ( const char * location, const char * fmt, ... ) const

virtualinherited

Issue info message.

Use "location" to specify the method where the warning occurred. Accepts standard printf formatting arguments.

Definition at line 1072 of file TObject.cxx.

InheritsFrom() [1/2]

Bool_t TObject::InheritsFrom ( const char * classname ) const

virtualinherited

Returns kTRUE if object inherits from class "classname".

Reimplemented in TClass.

Definition at line 549 of file TObject.cxx.

InheritsFrom() [2/2]

Bool_t TObject::InheritsFrom ( const TClass * cl ) const

virtualinherited

Returns kTRUE if object inherits from TClass cl.

Reimplemented in TClass.

Definition at line 557 of file TObject.cxx.

InitMap()

void TBufferIO::InitMap ( )

overridevirtualinherited

Create the fMap container and initialize them with the null object.

Implements TBuffer.

Definition at line 128 of file TBufferIO.cxx.

Inspect()

void TObject::Inspect ( ) const

virtualinherited

Dump contents of this object in a graphics canvas.

Same action as Dump but in a graphical form. In addition pointers to other objects can be followed.

The following picture is the Inspect of a histogram object:

Reimplemented in ROOT::Experimental::XRooFit::xRooNode, TGFrame, TInspectorObject, and TSystemFile.

Definition at line 570 of file TObject.cxx.

InvertBit()

void TObject::InvertBit ( UInt_t f )

inlineinherited

Definition at line 206 of file TObject.h.

IsA()

TClass * TBufferFile::IsA ( ) const

inlineoverridevirtual

Returns

TClass describing current object

Reimplemented from TBuffer.

Reimplemented in TBufferSQL, and TMessage.

Definition at line 266 of file TBufferFile.h.

IsDestructed()

Bool_t TObject::IsDestructed ( ) const

inlineinherited

IsDestructed.

Note

This function must be non-virtual as it can be used on destructed (but not yet modified) memory. This is used for example in TClonesArray to record the element that have been destructed but not deleted and thus are ready for re-use (by operator new with placement).

Returns

true if this object's destructor has been run.

Definition at line 186 of file TObject.h.

IsEqual()

Bool_t TObject::IsEqual ( const TObject * obj ) const

virtualinherited

Default equal comparison (objects are equal if they have the same address in memory).

More complicated classes might want to override this function.

Reimplemented in TGObject, TObjString, TPair, and TQCommand.

Definition at line 589 of file TObject.cxx.

IsFolder()

Bool_t TObject::IsFolder ( ) const

virtualinherited

Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).

Reimplemented in ROOT::Experimental::XRooFit::xRooNode, ROOT::Internal::THnBaseBrowsable, TApplicationRemote, TAxis3D, TBaseClass, TBranch, TBranchClones, TBranchElement, TBranchObject, TBranchSTL, TBrowserObject, TCanvas, TClass, TCollection, TDatabasePDG, TDirectory, TFolder, TGeoManager, TGeometry, TGeoNode, TGeoNodeMatrix, TGeoOverlap, TGeoTrack, TGeoVolume, THbookFile, THbookKey, THnBase, TKey, TMapFile, TMultiDimFit, TNode, TPad, TPair, TParticleClassPDG, TPrincipal, TRemoteObject, TROOT, TRootIconList, TSPlot, TSystemDirectory, TTask, TTree, and TVirtualBranchBrowsable.

Definition at line 579 of file TObject.cxx.

IsOnHeap()

Bool_t TObject::IsOnHeap ( ) const

inlineinherited

Definition at line 160 of file TObject.h.

IsReading()

Bool_t TBuffer::IsReading ( ) const

inlineinherited

Definition at line 86 of file TBuffer.h.

IsSortable()

virtual Bool_t TObject::IsSortable ( ) const

inlinevirtualinherited

Reimplemented in RooAbsArg, RooDouble, TCollection, TFileInfo, TGeoBranchArray, TGeoOverlap, TGFSFrameElement, TGLBFrameElement, TNamed, TObjString, TParameter< AParamType >, TParameter< Long64_t >, TPave, TStructNode, TStructNodeProperty, TUri, and TUrl.

Definition at line 158 of file TObject.h.

IsWriting()

Bool_t TBuffer::IsWriting ( ) const

inlineinherited

Definition at line 87 of file TBuffer.h.

IsZombie()

Bool_t TObject::IsZombie ( ) const

inlineinherited

Definition at line 161 of file TObject.h.

Length()

Int_t TBuffer::Length ( ) const

inlineinherited

Definition at line 100 of file TBuffer.h.

ls()

void TObject::ls ( Option_t * option = "" ) const

virtualinherited

The ls function lists the contents of a class on stdout.

Ls output is typically much less verbose then Dump().

Reimplemented in ROOT::Detail::TSchemaRuleSet, ROOT::Experimental::XRooFit::xRooBrowser, ROOT::TSchemaRule, TAnnotation, TApplication, TBox, TCanvas, TChain, TChainElement, TClass, TClassTree, TCollection, TColor, TDirectory, TDirectoryFile, TEllipse, TFile, TFolder, TFree, TFriendElement, TFunction, TGeometry, TGeoNode, TGFrameElement, TGLayoutHints, THbookFile, THStack, TImage, TKey, TLine, TMapFile, TMarker, TNamed, TNode, TPad, TParameter< AParamType >, TParameter< Long64_t >, TPave, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TQCommand, TQConnection, TQConnectionList, TQSlot, TQUndoManager, TROOT, TStatistic, TStreamerBase, TStreamerElement, TStreamerInfo, TStreamerSTL, TTask, TText, TVirtualPad, and TVirtualStreamerInfo.

Definition at line 598 of file TObject.cxx.

MakeZombie()

void TObject::MakeZombie ( )

inlineprotectedinherited

Definition at line 55 of file TObject.h.

MapObject() [1/2]

void TBufferIO::MapObject ( const TObject * obj, UInt_t offset = 1 )

overridevirtualinherited

Add object to the fMap container.

If obj is not 0 add object to the map (in read mode also add 0 objects to the map). This method may only be called outside this class just before calling obj->Streamer() to prevent self reference of obj, in case obj contains (via via) a pointer to itself. In that case offset must be 1 (default value for offset).

Implements TBuffer.

Definition at line 162 of file TBufferIO.cxx.

MapObject() [2/2]

void TBufferIO::MapObject ( const void * obj, const TClass * cl, UInt_t offset = 1 )

overridevirtualinherited

Add object to the fMap container.

If obj is not 0 add object to the map (in read mode also add 0 objects to the map). This method may only be called outside this class just before calling obj->Streamer() to prevent self reference of obj, in case obj contains (via via) a pointer to itself. In that case offset must be 1 (default value for offset).

Implements TBuffer.

Definition at line 195 of file TBufferIO.cxx.

MayNotUse()

void TObject::MayNotUse ( const char * method ) const

inherited

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).

Definition at line 1160 of file TObject.cxx.

Notify()

Bool_t TObject::Notify ( )

virtualinherited

This method must be overridden to handle object notification (the base implementation is no-op).

Different objects in ROOT use the Notify method for different purposes, in coordination with other objects that call this method at the appropriate time.

For example, TLeaf uses it to load class information; TBranchRef to load contents of referenced branches TBranchRef; most notably, based on Notify, TChain implements a callback mechanism to inform interested parties when it switches to a new sub-tree.

Reimplemented in h1analysis, h1analysisTreeReader, TARInterruptHandler, TASInputHandler, TASInterruptHandler, TASLogHandler, TASSigPipeHandler, TBlinkTimer, TBranchElement, TBranchRef, TBreakLineCom, TBrowserTimer, TCollection, TDelCharCom, TDelTextCom, TFileHandler, TGContainerKeyboardTimer, TGContainerScrollTimer, TGInputHandler, TGLRedrawTimer, TGTextEditHist, TGuiBldDragManagerRepeatTimer, TIdleTimer, TInsCharCom, TInsTextCom, TInterruptHandler, TLeafObject, TMessageHandler, TNotifyLink< Type >, TNotifyLink< RNoCleanupNotifierHelper >, TNotifyLink< ROOT::Detail::TBranchProxy >, TNotifyLink< TTreeReader >, TPopupDelayTimer, TProcessEventTimer, TRefTable, TRepeatTimer, TSBRepeatTimer, TSelector, TSelectorDraw, TSelectorEntries, TSignalHandler, TSingleShotCleaner, TSocketHandler, TStdExceptionHandler, TSysEvtHandler, TTermInputHandler, TThreadTimer, TTimeOutTimer, TTimer, TTipDelayTimer, TTree, TTreeFormula, TTreeFormulaManager, TTreeReader, TViewTimer, and TViewUpdateTimer.

Definition at line 618 of file TObject.cxx.

Obsolete()

void TObject::Obsolete ( const char * method, const char * asOfVers, const char * removedFromVers ) const

inherited

Use this method to declare a method obsolete.

Specify as of which version the method is obsolete and as from which version it will be removed.

Definition at line 1169 of file TObject.cxx.

operator delete() [1/3]

void TObject::operator delete ( void * ptr, size_t size )

inherited

Operator delete for sized deallocation.

Definition at line 1234 of file TObject.cxx.

operator delete() [2/3]

void TObject::operator delete ( void * ptr )

inherited

Operator delete.

Definition at line 1212 of file TObject.cxx.

operator delete() [3/3]

void TObject::operator delete ( void * ptr, void * vp )

inherited

Only called by placement new when throwing an exception.

Definition at line 1266 of file TObject.cxx.

operator delete[]() [1/3]

void TObject::operator delete[] ( void * ptr, size_t size )

inherited

Operator delete [] for sized deallocation.

Definition at line 1245 of file TObject.cxx.

operator delete[]() [2/3]

void TObject::operator delete[] ( void * ptr )

inherited

Operator delete [].

Definition at line 1223 of file TObject.cxx.

operator delete[]() [3/3]

void TObject::operator delete[] ( void * ptr, void * vp )

inherited

Only called by placement new[] when throwing an exception.

Definition at line 1274 of file TObject.cxx.

operator new() [1/2]

void * TObject::operator new ( size_t sz )

inlineinherited

Definition at line 189 of file TObject.h.

operator new() [2/2]

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

inlineinherited

Definition at line 191 of file TObject.h.

operator new[]() [1/2]

void * TObject::operator new[] ( size_t sz )

inlineinherited

Definition at line 190 of file TObject.h.

operator new[]() [2/2]

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

inlineinherited

Definition at line 192 of file TObject.h.

operator=()

void TBufferFile::operator= ( const TBufferFile & )

protecteddelete

not implemented

Paint()

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

virtualinherited

This method must be overridden if a class wants to paint itself.

The difference between Paint() and Draw() is that when a object draws itself it is added to the display list of the pad in which it is drawn (and automatically redrawn whenever the pad is redrawn). While paint just draws the object without adding it to the pad display list.

Reimplemented in ROOT::Experimental::RTreeMapPainter, ROOT::RGeoPainter, TAnnotation, TArrow, TASImage, TASPaletteEditor::LimitLine, TASPaletteEditor::PaintPalette, TAxis3D, TBits, TBox, TButton, TCanvas, TClassTree, TCollection, TColorWheel, TCrown, TDiamond, TDirectory, TEfficiency, TEllipse, TEveArrow, TEveCaloViz, TEveDigitSet, TEveGeoShape, TEveGeoTopNode, TEvePlot3D, TEvePointSet, TEveProjectionAxes, TEveScene, TEveShape, TEveStraightLineSet, TEveText, TEveTriangleSet, TExec, TF1, TF2, TF3, TFile, TFileDrawMap, TFrame, TGaxis, TGenerator, TGeoBoolNode, TGeoIntersection, TGeoNode, TGeoOverlap, TGeoPainter, TGeoPhysicalNode, TGeoShape, TGeoSubtraction, TGeoTrack, TGeoUnion, TGeoVGShape, TGeoVolume, TGL5DDataSet, TGLHistPainter, TGLParametricEquation, TGLTH3Composition, TGraph2D, TGraph2DPainter, TGraph, TGraphEdge, TGraphNode, TGraphPolargram, TGraphTime, TH1, THistPainter, THStack, TLatex, TLegend, TLine, TMacro, TMarker3DBox, TMarker, TMathText, TMultiGraph, TNode, TNodeDiv, TPad, TPaletteAxis, TParallelCoord, TParallelCoordRange, TParallelCoordVar, TParticle, TPave, TPaveLabel, TPaveStats, TPavesText, TPaveText, TPie, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TPrimary, TRatioPlot, TScatter2D, TScatter, TShape, TSpectrum2Painter, TSpider, TSpline, TSQLFile, TStyle, TText, TTreePerfStats, TVirtualGeoPainter, TVirtualGeoTrack, TVirtualHistPainter, TVirtualPad, TWbox, and TXMLFile.

Definition at line 631 of file TObject.cxx.

PeekDataCache()

TVirtualArray * TBuffer::PeekDataCache ( ) const

virtualinherited

Return the 'current' data cache area from the list of area to be used for temporarily store 'missing' data members.

Definition at line 372 of file TBuffer.cxx.

Pop()

void TObject::Pop ( )

virtualinherited

Pop on object drawn in a pad to the top of the display list.

I.e. it will be drawn last and on top of all other primitives.

Reimplemented in TFrame, TPad, and TVirtualPad.

Definition at line 640 of file TObject.cxx.

PopDataCache()

TVirtualArray * TBuffer::PopDataCache ( )

virtualinherited

Pop and Return the 'current' data cache area from the list of area to be used for temporarily store 'missing' data members.

Definition at line 382 of file TBuffer.cxx.

Print()

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

virtualinherited

This method must be overridden when a class wants to print itself.

Reimplemented in Roo1DTable, RooAbsArg, RooAbsBinning, RooAbsCollection, RooAbsData, RooAbsDataStore, RooAbsGenContext, RooCatType, RooCmdArg, RooCurve, RooEllipse, RooFitResult, RooGenFitStudy, RooHist, RooLinkedList, RooMsgService, RooNumGenConfig, RooNumIntConfig, RooPlot, RooSharedProperties, RooStats::ModelConfig, ROOT::Experimental::REveTrans, ROOT::Experimental::XRooFit::xRooNLLVar::xRooHypoPoint, ROOT::Experimental::XRooFit::xRooNLLVar::xRooHypoSpace, ROOT::Experimental::XRooFit::xRooNode, ROOT::v5::TFormula, RooWorkspace, TAnnotation, TApplicationRemote, TAttParticle, TBenchmark, TBits, TBox, TBranch, TBranchClones, TBranchElement, TBranchObject, TBranchRef, TBranchSTL, TChain, TClassTable, TCling, TCollection, TColor, TDatabasePDG, TDecompBase, TDecompBK, TDecompChol, TDecompLU, TDecompQRH, TDecompSparse, TDecompSVD, TDirectory, TEllipse, TEnv, TEventList, TEveTrans, TF1, TFile, TFileCacheRead, TFileCacheWrite, TFileCollection, TFileInfo, TFileInfoMeta, TFitResult, TFoamCell, TFoamVect, TFormula, TFunction, TGCompositeFrame, TGDMLMatrix, TGeoBatemanSol, TGeoBorderSurface, TGeoBranchArray, TGeoDecayChannel, TGeoElement, TGeoElementRN, TGeoElementTable, TGeoIsotope, TGeoMatrix, TGeoOpticalSurface, TGeoOverlap, TGeoPhysicalNode, TGeoRegion, TGeoSkinSurface, TGeoTessellated, TGeoTrack, TGeoVolume, TGeoVoxelFinder, TGFont, TGFontPool, TGFrame, TGFrameElement, TGGC, TGGCPool, TGLayoutHints, TGMimeTypes, TGPicture, TGPicturePool, TGraph2D, TGraph2DAsymmErrors, TGraph2DErrors, TGraph, TGraphAsymmErrors, TGraphBentErrors, TGraphErrors, TGraphMultiErrors, TGTextEdit, TGWindow, TH1, THashTable, THbookTree, THelix, THnBase, THStack, TInetAddress, TKey, TLegend, TLegendEntry, TLine, TLorentzVector, TMacro, TMapFile, TMarker, TMatrixTBase< Element >, TMatrixTBase< Double_t >, TMatrixTBase< Float_t >, TMemFile, TMessageHandler, TMultiDimFit, TMultiGraph, TMVA::Event, TMVA::Option< T >, TMVA::Option< T * >, TMVA::OptionBase, TMVA::PDEFoamCell, TMVA::PDEFoamVect, TMVA::TNeuron, TNamed, TObjectTable, TObjString, TPad, TParallelCoordRange, TParallelCoordVar, TParameter< AParamType >, TParameter< Long64_t >, TParticle, TParticleClassPDG, TParticlePDG, TPave, TPaveText, TPluginHandler, TPluginManager, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TPrimary, TPrincipal, TQpDataDens, TQpDataSparse, TQpVar, TQSlot, TQuaternion, TRolke, TRootBrowserHistoryCursor, TScatter2D, TScatter, TSpectrum2, TSpectrum3, TSpectrum, TSQLColumnInfo, TSQLFile, TSQLStructure, TSQLTableInfo, TStatistic, TStopwatch, TStreamerInfoActions::TActionSequence, TText, TTree, TTreeCache, TTreeCacheUnzip, TTreeIndex, TTreePerfStats, TUri, TUrl, TVector2, TVector3, TVectorT< Element >, TVectorT< Double_t >, TVectorT< Float_t >, TVirtualPad, TXMLFile, TXTRU, TZIPFile, and TZIPMember.

Definition at line 661 of file TObject.cxx.

PushDataCache()

void TBuffer::PushDataCache ( TVirtualArray * obj )

virtualinherited

Push a new data cache area onto the list of area to be used for temporarily store 'missing' data members.

Definition at line 363 of file TBuffer.cxx.

Read()

Int_t TBuffer::Read ( const char * name )

inlineoverrideprotectedvirtualinherited

Read contents of object with specified name from the current directory.

First the key with the given name is searched in the current directory, next the key buffer is deserialized into the object. The object must have been created before via the default constructor. See TObject::Write().

Reimplemented from TObject.

Definition at line 66 of file TBuffer.h.

ReadArray() [1/13]

Int_t TBufferFile::ReadArray ( Bool_t *& b )

overridevirtual

Read array of bools from the I/O buffer.

Returns the number of bools read. If argument is a 0 pointer then space will be allocated for the array.

Implements TBuffer.

Definition at line 733 of file TBufferFile.cxx.

ReadArray() [2/13]

Int_t TBufferFile::ReadArray ( Char_t *& c )

overridevirtual

Read array of characters from the I/O buffer.

Returns the number of characters read. If argument is a 0 pointer then space will be allocated for the array.

Implements TBuffer.

Definition at line 761 of file TBufferFile.cxx.

ReadArray() [3/13]

Int_t TBufferFile::ReadArray ( Double_t *& d )

overridevirtual

Read array of doubles from the I/O buffer.

Returns the number of doubles read. If argument is a 0 pointer then space will be allocated for the array.

Implements TBuffer.

Definition at line 937 of file TBufferFile.cxx.

ReadArray() [4/13]

Int_t TBufferFile::ReadArray ( Float_t *& f )

overridevirtual

Read array of floats from the I/O buffer.

Returns the number of floats read. If argument is a 0 pointer then space will be allocated for the array.

Implements TBuffer.

Definition at line 904 of file TBufferFile.cxx.

ReadArray() [5/13]

Int_t TBufferFile::ReadArray ( Int_t *& ii )

overridevirtual

Read array of ints from the I/O buffer.

Returns the number of ints read. If argument is a 0 pointer then space will be allocated for the array.

Implements TBuffer.

Definition at line 817 of file TBufferFile.cxx.

ReadArray() [6/13]

Int_t TBufferFile::ReadArray ( Long64_t *& ll )

overridevirtual

Read array of long longs from the I/O buffer.

Returns the number of long longs read. If argument is a 0 pointer then space will be allocated for the array.

Implements TBuffer.

Definition at line 876 of file TBufferFile.cxx.

ReadArray() [7/13]

Int_t TBufferFile::ReadArray ( Long_t *& ll )

overridevirtual

Read array of longs from the I/O buffer.

Returns the number of longs read. If argument is a 0 pointer then space will be allocated for the array.

Implements TBuffer.

Definition at line 850 of file TBufferFile.cxx.

ReadArray() [8/13]

Int_t TBufferFile::ReadArray ( Short_t *& h )

overridevirtual

Read array of shorts from the I/O buffer.

Returns the number of shorts read. If argument is a 0 pointer then space will be allocated for the array.

Implements TBuffer.

Definition at line 784 of file TBufferFile.cxx.

ReadArray() [9/13]

Int_t TBufferFile::ReadArray ( UChar_t *& c )

inlineoverridevirtual

Implements TBuffer.

Definition at line 467 of file TBufferFile.h.

ReadArray() [10/13]

Int_t TBufferFile::ReadArray ( UInt_t *& i )

inlineoverridevirtual

Implements TBuffer.

Definition at line 473 of file TBufferFile.h.

ReadArray() [11/13]

Int_t TBufferFile::ReadArray ( ULong64_t *& l )

inlineoverridevirtual

Implements TBuffer.

Definition at line 479 of file TBufferFile.h.

ReadArray() [12/13]

Int_t TBufferFile::ReadArray ( ULong_t *& l )

inlineoverridevirtual

Implements TBuffer.

Definition at line 476 of file TBufferFile.h.

ReadArray() [13/13]

Int_t TBufferFile::ReadArray ( UShort_t *& h )

inlineoverridevirtual

Implements TBuffer.

Definition at line 470 of file TBufferFile.h.

ReadArrayDouble32()

Int_t TBufferFile::ReadArrayDouble32 ( Double_t *& d, TStreamerElement * ele = nullptr )

overridevirtual

Read array of doubles (written as float) from the I/O buffer.

Returns the number of doubles read. If argument is a 0 pointer then space will be allocated for the array. see comments about Double32_t encoding at TBufferFile::WriteDouble32

Implements TBuffer.

Definition at line 988 of file TBufferFile.cxx.

ReadArrayFloat16()

Int_t TBufferFile::ReadArrayFloat16 ( Float_t *& f, TStreamerElement * ele = nullptr )

overridevirtual

Read array of floats (written as truncated float) from the I/O buffer.

Returns the number of floats read. If argument is a 0 pointer then space will be allocated for the array. see comments about Float16_t encoding at TBufferFile::WriteFloat16

Implements TBuffer.

Definition at line 966 of file TBufferFile.cxx.

ReadBool()

void TBufferFile::ReadBool ( Bool_t & b )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 380 of file TBufferFile.h.

ReadBuf()

Int_t TBufferFile::ReadBuf ( void * buf, Int_t max )

overridevirtual

Read max bytes from the I/O buffer into buf.

The function returns the actual number of bytes read.

Implements TBuffer.

Definition at line 3342 of file TBufferFile.cxx.

ReadChar()

void TBufferFile::ReadChar ( Char_t & c )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 386 of file TBufferFile.h.

ReadCharP()

void TBufferFile::ReadCharP ( Char_t * c )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 461 of file TBufferFile.h.

ReadCharStar()

void TBufferFile::ReadCharStar ( char *& s )

overridevirtual

Read char* from TBuffer.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 285 of file TBufferFile.cxx.

ReadClass()

TClass * TBufferFile::ReadClass ( const TClass * clReq = nullptr, UInt_t * objTag = nullptr )

overridevirtual

Read class definition from I/O buffer.

Parameters

[in]	clReq	Can be used to cross check if the actually read object is of the requested class.
[in]	objTag	Set in case the object is a reference to an already read object.

Implements TBuffer.

Definition at line 2738 of file TBufferFile.cxx.

ReadClassBuffer() [1/2]

Int_t TBufferFile::ReadClassBuffer ( const TClass * cl, void * pointer, const TClass * onFileClass )

overridevirtual

Deserialize information from a buffer into an object.

Note: This function is called by the xxx::Streamer() functions in rootcling-generated dictionaries.

Implements TBuffer.

Definition at line 3548 of file TBufferFile.cxx.

ReadClassBuffer() [2/2]

Int_t TBufferFile::ReadClassBuffer ( const TClass * cl, void * pointer, Int_t version, UInt_t start, UInt_t count, const TClass * onFileClass )

overridevirtual

Deserialize information from a buffer into an object.

Note: This function is called by the xxx::Streamer() functions in rootcling-generated dictionaries. This function assumes that the class version and the byte count information have been read.

Parameters

[in]	cl	pointer to the local TClass
[out]	pointer	void pointer to object
[in]	version	The version number of the class
[in]	start	The starting position in the buffer b
[in]	count	The number of bytes for this object in the buffer
[in]	onFileClass	pointer to TClass object on file

Implements TBuffer.

Definition at line 3455 of file TBufferFile.cxx.

ReadClassEmulated()

Int_t TBufferFile::ReadClassEmulated ( const TClass * cl, void * object, const TClass * onfile_class )

overridevirtual

Read emulated class.

Implements TBuffer.

Definition at line 3412 of file TBufferFile.cxx.

ReadClones()

Int_t TBufferIO::ReadClones ( TClonesArray * a, Int_t nobjects, Version_t objvers )

overridevirtualinherited

Interface to TStreamerInfo::ReadBufferClones.

Implements TBuffer.

Definition at line 371 of file TBufferIO.cxx.

ReadDouble()

void TBufferFile::ReadDouble ( Double_t & d )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 455 of file TBufferFile.h.

ReadDouble32()

void TBufferFile::ReadDouble32 ( Double_t * d, TStreamerElement * ele = nullptr )

overridevirtual

Read a Double32_t from the buffer, see comments about Double32_t encoding at TBufferFile::WriteDouble32().

Implements TBuffer.

Definition at line 464 of file TBufferFile.cxx.

ReadFastArray() [1/15]

void TBufferFile::ReadFastArray ( Bool_t * b, Int_t n )

overridevirtual

Read array of n bools from the I/O buffer.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1273 of file TBufferFile.cxx.

ReadFastArray() [2/15]

void TBufferFile::ReadFastArray ( Char_t * c, Int_t n )

overridevirtual

Read array of n characters from the I/O buffer.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1290 of file TBufferFile.cxx.

ReadFastArray() [3/15]

void TBufferFile::ReadFastArray ( Double_t * d, Int_t n )

overridevirtual

Read array of n doubles from the I/O buffer.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1429 of file TBufferFile.cxx.

ReadFastArray() [4/15]

void TBufferFile::ReadFastArray ( Float_t * f, Int_t n )

overridevirtual

Read array of n floats from the I/O buffer.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1407 of file TBufferFile.cxx.

ReadFastArray() [5/15]

void TBufferFile::ReadFastArray ( Int_t * i, Int_t n )

overridevirtual

Read array of n ints from the I/O buffer.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1352 of file TBufferFile.cxx.

ReadFastArray() [6/15]

void TBufferFile::ReadFastArray ( Long64_t * l, Int_t n )

overridevirtual

Read array of n long longs from the I/O buffer.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1390 of file TBufferFile.cxx.

ReadFastArray() [7/15]

void TBufferFile::ReadFastArray ( Long_t * l, Int_t n )

overridevirtual

Read array of n longs from the I/O buffer.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1374 of file TBufferFile.cxx.

ReadFastArray() [8/15]

void TBufferFile::ReadFastArray ( Short_t * h, Int_t n )

overridevirtual

Read array of n shorts from the I/O buffer.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1330 of file TBufferFile.cxx.

ReadFastArray() [9/15]

void TBufferFile::ReadFastArray ( UChar_t * c, Int_t n )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 499 of file TBufferFile.h.

ReadFastArray() [10/15]

void TBufferFile::ReadFastArray ( UInt_t * i, Int_t n )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 505 of file TBufferFile.h.

ReadFastArray() [11/15]

void TBufferFile::ReadFastArray ( ULong64_t * l, Int_t n )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 511 of file TBufferFile.h.

ReadFastArray() [12/15]

void TBufferFile::ReadFastArray ( ULong_t * l, Int_t n )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 508 of file TBufferFile.h.

ReadFastArray() [13/15]

void TBufferFile::ReadFastArray ( UShort_t * h, Int_t n )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 502 of file TBufferFile.h.

ReadFastArray() [14/15]

void TBufferFile::ReadFastArray ( void ** start, const TClass * cl, Int_t n = 1, Bool_t isPreAlloc = kFALSE, TMemberStreamer * streamer = nullptr, const TClass * onFileClass = nullptr )

overridevirtual

Read an array of 'n' objects from the I/O buffer.

The objects read are stored starting at the address '*start' The objects in the array are assumed to be of class 'cl' or a derived class. 'mode' indicates whether the data member is marked with '->'

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1662 of file TBufferFile.cxx.

ReadFastArray() [15/15]

void TBufferFile::ReadFastArray ( void * start, const TClass * cl, Int_t n = 1, TMemberStreamer * streamer = nullptr, const TClass * onFileClass = nullptr )

overridevirtual

Read an array of 'n' objects from the I/O buffer.

Stores the objects read starting at the address 'start'. The objects in the array are assume to be of class 'cl'.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1639 of file TBufferFile.cxx.

ReadFastArrayDouble32()

void TBufferFile::ReadFastArrayDouble32 ( Double_t * d, Int_t n, TStreamerElement * elem = nullptr )

overridevirtual

Read array of n doubles (written as float) from the I/O buffer.

see comments about Double32_t encoding at TBufferFile::WriteDouble32

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1535 of file TBufferFile.cxx.

ReadFastArrayFloat16()

void TBufferFile::ReadFastArrayFloat16 ( Float_t * f, Int_t n, TStreamerElement * elem = nullptr )

overridevirtual

Read array of n floats (written as truncated float) from the I/O buffer.

see comments about Float16_t encoding at TBufferFile::WriteFloat16

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1447 of file TBufferFile.cxx.

ReadFastArrayString()

void TBufferFile::ReadFastArrayString ( Char_t * c, Int_t n )

overridevirtual

Read array of n characters from the I/O buffer.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1302 of file TBufferFile.cxx.

ReadFastArrayWithFactor() [1/2]

void TBufferFile::ReadFastArrayWithFactor ( Double_t * d, Int_t n, Double_t factor, Double_t minvalue )

overridevirtual

Read array of n doubles (written as float) from the I/O buffer.

see comments about Double32_t encoding at TBufferFile::WriteDouble32

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1588 of file TBufferFile.cxx.

ReadFastArrayWithFactor() [2/2]

void TBufferFile::ReadFastArrayWithFactor ( Float_t * ptr, Int_t n, Double_t factor, Double_t minvalue )

overridevirtual

Read array of n floats (written as truncated float) from the I/O buffer.

see comments about Float16_t encoding at TBufferFile::WriteFloat16

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1493 of file TBufferFile.cxx.

ReadFastArrayWithNbits() [1/2]

void TBufferFile::ReadFastArrayWithNbits ( Double_t * d, Int_t n, Int_t nbits )

overridevirtual

Read array of n doubles (written as float) from the I/O buffer.

see comments about Double32_t encoding at TBufferFile::WriteDouble32

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1602 of file TBufferFile.cxx.

ReadFastArrayWithNbits() [2/2]

void TBufferFile::ReadFastArrayWithNbits ( Float_t * ptr, Int_t n, Int_t nbits )

overridevirtual

Read array of n floats (written as truncated float) from the I/O buffer.

see comments about Float16_t encoding at TBufferFile::WriteFloat16

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1507 of file TBufferFile.cxx.

ReadFloat()

void TBufferFile::ReadFloat ( Float_t & f )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 449 of file TBufferFile.h.

ReadFloat16()

void TBufferFile::ReadFloat16 ( Float_t * f, TStreamerElement * ele = nullptr )

overridevirtual

Read a Float16_t from the buffer, see comments about Float16_t encoding at TBufferFile::WriteFloat16().

Implements TBuffer.

Definition at line 442 of file TBufferFile.cxx.

ReadInt()

void TBufferFile::ReadInt ( Int_t & i )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 410 of file TBufferFile.h.

ReadLong()

void TBufferFile::ReadLong ( Long_t & l )

overridevirtual

Read Long from TBuffer.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 173 of file TBufferFile.cxx.

ReadLong64()

void TBufferFile::ReadLong64 ( Long64_t & l )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 437 of file TBufferFile.h.

ReadObject()

TObject * TBufferFile::ReadObject ( const TClass * cl )

overridevirtual

Read object from I/O buffer.

clReq is NOT used.

The value returned is the address of the actual start in memory of the object. Note that if the actual class of the object does not inherit first from TObject, the type of the pointer is NOT 'TObject*'. [More accurately, the class needs to start with the TObject part, for the pointer to be a real TObject*]. We recommend using ReadObjectAny instead of ReadObject

Implements TBuffer.

Definition at line 2491 of file TBufferFile.cxx.

ReadObjectAny()

void * TBufferFile::ReadObjectAny ( const TClass * clCast )

overridevirtual

Read object from I/O buffer.

A typical use for this function is:

MyClass *ptr = (MyClass*)b.ReadObjectAny(MyClass::Class());

I.e. clCast should point to a TClass object describing the class pointed to by your pointer. In case of multiple inheritance, the return value might not be the real beginning of the object in memory. You will need to use a dynamic_cast later if you need to retrieve it.

Implements TBuffer.

Definition at line 2519 of file TBufferFile.cxx.

ReadProcessID()

TProcessID * TBufferIO::ReadProcessID ( UShort_t pidf )

overridevirtualinherited

The TProcessID with number pidf is read from file.

If the object is not already entered in the gROOT list, it is added.

Implements TBuffer.

Definition at line 421 of file TBufferIO.cxx.

ReadShort()

void TBufferFile::ReadShort ( Short_t & s )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 398 of file TBufferFile.h.

ReadStaticArray() [1/13]

Int_t TBufferFile::ReadStaticArray ( Bool_t * b )

overridevirtual

Read array of bools from the I/O buffer.

Returns the number of bools read.

Implements TBuffer.

Definition at line 1008 of file TBufferFile.cxx.

ReadStaticArray() [2/13]

Int_t TBufferFile::ReadStaticArray ( Char_t * c )

overridevirtual

Read array of characters from the I/O buffer.

Returns the number of characters read.

Implements TBuffer.

Definition at line 1035 of file TBufferFile.cxx.

ReadStaticArray() [3/13]

Int_t TBufferFile::ReadStaticArray ( Double_t * d )

overridevirtual

Read array of doubles from the I/O buffer.

Returns the number of doubles read.

Implements TBuffer.

Definition at line 1205 of file TBufferFile.cxx.

ReadStaticArray() [4/13]

Int_t TBufferFile::ReadStaticArray ( Float_t * f )

overridevirtual

Read array of floats from the I/O buffer.

Returns the number of floats read.

Implements TBuffer.

Definition at line 1173 of file TBufferFile.cxx.

ReadStaticArray() [5/13]

Int_t TBufferFile::ReadStaticArray ( Int_t * ii )

overridevirtual

Read array of ints from the I/O buffer.

Returns the number of ints read.

Implements TBuffer.

Definition at line 1089 of file TBufferFile.cxx.

ReadStaticArray() [6/13]

Int_t TBufferFile::ReadStaticArray ( Long64_t * ll )

overridevirtual

Read array of long longs from the I/O buffer.

Returns the number of long longs read.

Implements TBuffer.

Definition at line 1146 of file TBufferFile.cxx.

ReadStaticArray() [7/13]

Int_t TBufferFile::ReadStaticArray ( Long_t * ll )

overridevirtual

Read array of longs from the I/O buffer.

Returns the number of longs read.

Implements TBuffer.

Definition at line 1121 of file TBufferFile.cxx.

ReadStaticArray() [8/13]

Int_t TBufferFile::ReadStaticArray ( Short_t * h )

overridevirtual

Read array of shorts from the I/O buffer.

Returns the number of shorts read.

Implements TBuffer.

Definition at line 1057 of file TBufferFile.cxx.

ReadStaticArray() [9/13]

Int_t TBufferFile::ReadStaticArray ( UChar_t * c )

inlineoverridevirtual

Implements TBuffer.

Definition at line 483 of file TBufferFile.h.

ReadStaticArray() [10/13]

Int_t TBufferFile::ReadStaticArray ( UInt_t * i )

inlineoverridevirtual

Implements TBuffer.

Definition at line 489 of file TBufferFile.h.

ReadStaticArray() [11/13]

Int_t TBufferFile::ReadStaticArray ( ULong64_t * l )

inlineoverridevirtual

Implements TBuffer.

Definition at line 495 of file TBufferFile.h.

ReadStaticArray() [12/13]

Int_t TBufferFile::ReadStaticArray ( ULong_t * l )

inlineoverridevirtual

Implements TBuffer.

Definition at line 492 of file TBufferFile.h.

ReadStaticArray() [13/13]

Int_t TBufferFile::ReadStaticArray ( UShort_t * h )

inlineoverridevirtual

Implements TBuffer.

Definition at line 486 of file TBufferFile.h.

ReadStaticArrayDouble32()

Int_t TBufferFile::ReadStaticArrayDouble32 ( Double_t * d, TStreamerElement * ele = nullptr )

overridevirtual

Read array of doubles (written as float) from the I/O buffer.

Returns the number of doubles read. see comments about Double32_t encoding at TBufferFile::WriteDouble32

Implements TBuffer.

Definition at line 1254 of file TBufferFile.cxx.

ReadStaticArrayFloat16()

Int_t TBufferFile::ReadStaticArrayFloat16 ( Float_t * f, TStreamerElement * ele = nullptr )

overridevirtual

Read array of floats (written as truncated float) from the I/O buffer.

Returns the number of floats read. see comments about Float16_t encoding at TBufferFile::WriteFloat16

Implements TBuffer.

Definition at line 1233 of file TBufferFile.cxx.

ReadStdString() [1/2]

virtual void TBuffer::ReadStdString ( std::string & s )

inlinevirtual

Reimplemented from TBuffer.

Reimplemented in TBufferSQL.

Definition at line 292 of file TBuffer.h.

ReadStdString() [2/2]

void TBufferFile::ReadStdString ( std::string * s )

overridevirtual

Read std::string from TBuffer.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 230 of file TBufferFile.cxx.

ReadString()

char * TBufferFile::ReadString ( char * s, Int_t max )

overridevirtual

Read string from I/O buffer.

String is read till 0 character is found or till max-1 characters are read (i.e. string s has max bytes allocated). If max = -1 no check on number of character is made, reading continues till 0 character is found.

Implements TBuffer.

Definition at line 3377 of file TBufferFile.cxx.

ReadTString()

void TBufferFile::ReadTString ( TString & s )

overridevirtual

Read TString from TBuffer.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 186 of file TBufferFile.cxx.

ReadUChar()

void TBufferFile::ReadUChar ( UChar_t & c )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 392 of file TBufferFile.h.

ReadUInt()

void TBufferFile::ReadUInt ( UInt_t & i )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 416 of file TBufferFile.h.

ReadULong()

void TBufferFile::ReadULong ( ULong_t & l )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 430 of file TBufferFile.h.

ReadULong64()

void TBufferFile::ReadULong64 ( ULong64_t & l )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 443 of file TBufferFile.h.

ReadUShort()

void TBufferFile::ReadUShort ( UShort_t & s )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 404 of file TBufferFile.h.

ReadVersion()

Version_t TBufferFile::ReadVersion ( UInt_t * start = nullptr, UInt_t * bcnt = nullptr, const TClass * cl = nullptr )

overridevirtual

Read class version from I/O buffer.

Implements TBuffer.

Definition at line 2933 of file TBufferFile.cxx.

ReadVersionForMemberWise()

Version_t TBufferFile::ReadVersionForMemberWise ( const TClass * cl = nullptr )

overridevirtual

Read class version from I/O buffer.

To be used when streaming out member-wise streamed collection where we do not care (not save) about the byte count and can safely ignore missing streamerInfo (since they usually indicate empty collections).

Implements TBuffer.

Definition at line 3085 of file TBufferFile.cxx.

ReadVersionNoCheckSum()

Version_t TBufferFile::ReadVersionNoCheckSum ( UInt_t * start = nullptr, UInt_t * bcnt = nullptr )

overridevirtual

Read class version from I/O buffer, when the caller knows for sure that there is no checksum written/involved.

Implements TBuffer.

Definition at line 3042 of file TBufferFile.cxx.

ReadWithFactor() [1/2]

void TBufferFile::ReadWithFactor ( Double_t * ptr, Double_t factor, Double_t minvalue )

overridevirtual

Read a Double32_t from the buffer when the factor and minimum value have been specified see comments about Double32_t encoding at TBufferFile::WriteDouble32().

Implements TBuffer.

Definition at line 527 of file TBufferFile.cxx.

ReadWithFactor() [2/2]

void TBufferFile::ReadWithFactor ( Float_t * ptr, Double_t factor, Double_t minvalue )

overridevirtual

Read a Float16_t from the buffer when the factor and minimum value have been specified see comments about Double32_t encoding at TBufferFile::WriteDouble32().

Implements TBuffer.

Definition at line 492 of file TBufferFile.cxx.

ReadWithNbits() [1/2]

void TBufferFile::ReadWithNbits ( Double_t * ptr, Int_t nbits )

overridevirtual

Read a Double32_t from the buffer when the number of bits is specified (explicitly or not) see comments about Double32_t encoding at TBufferFile::WriteDouble32().

Implements TBuffer.

Definition at line 539 of file TBufferFile.cxx.

ReadWithNbits() [2/2]

void TBufferFile::ReadWithNbits ( Float_t * ptr, Int_t nbits )

overridevirtual

Read a Float16_t from the buffer when the number of bits is specified (explicitly or not) see comments about Float16_t encoding at TBufferFile::WriteFloat16().

Implements TBuffer.

Definition at line 504 of file TBufferFile.cxx.

RecursiveRemove()

void TObject::RecursiveRemove ( TObject * obj )

virtualinherited

Recursively remove this object from a list.

Typically implemented by classes that can contain multiple references to a same object.

Reimplemented in RooAbsCollection, RooAbsData, RooLinkedList, RooMCStudy, ROOT::Internal::TCheckHashRecursiveRemoveConsistency, ROOT::RBrowserDataCleanup, RooWorkspace, TBrowser, TChain, TCling, TCollection, TDialogCanvas, TDirectory, TEfficiency, TFileMerger, TFitEditor, TFolder, TFriendElement, TGedEditor, TGeometry, TGFileBrowser, TGraph2D, TGraph, TH1, TH1Editor, TH2Editor, THashList, THistPainter, THStack, TInspectCanvas, TLegend, TList, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TMultiGraph, TNode, TObjArray, TObjectRefSpy, TObjectSpy, TPad, TProcessID, TROOT, TRootBrowser, TRootBrowserHistory, TRootBrowserLite, TRootContextMenu, TTree, TTreePlayer, TViewPubDataMembers, TViewPubFunctions, and TVirtualPad.

Definition at line 684 of file TObject.cxx.

Reset()

void TBufferIO::Reset ( )

overridevirtualinherited

Reset buffer object. Resets map and buffer offset.

Implements TBuffer.

Reimplemented in TMessage.

Definition at line 304 of file TBufferIO.cxx.

ResetBit()

void TObject::ResetBit ( UInt_t f )

inlineinherited

Definition at line 203 of file TObject.h.

ResetMap()

void TBufferIO::ResetMap ( )

overridevirtualinherited

Delete existing fMap and reset map counter.

Implements TBuffer.

Definition at line 287 of file TBufferIO.cxx.

SaveAs()

void TObject::SaveAs ( const char * filename = "", Option_t * option = "" ) const

virtualinherited

Save this object in the file specified by filename.

• if "filename" contains ".root" the object is saved in filename as root binary file.
• if "filename" contains ".xml" the object is saved in filename as a xml ascii file.
• if "filename" contains ".cc" the object is saved in filename as C code independent from ROOT. The code is generated via SavePrimitive(). Specific code should be implemented in each object to handle this option. Like in TF1::SavePrimitive().

• otherwise the object is written to filename as a CINT/C++ script. The C++ code to rebuild this object is generated via SavePrimitive(). The "option" parameter is passed to SavePrimitive. By default it is an empty string. It can be used to specify the Draw option in the code generated by SavePrimitive.

  The function is available via the object context menu.

Reimplemented in ROOT::Experimental::XRooFit::xRooNode, TClassTree, TFolder, TGeoVolume, TGObject, TGraph, TH1, TPad, TPaveClass, TSpline3, TSpline5, TSpline, TTreePerfStats, and TVirtualPad.

Definition at line 708 of file TObject.cxx.

SavePrimitive()

void TObject::SavePrimitive ( std::ostream & out, Option_t * option = "" )

virtualinherited

Save a primitive as a C++ statement(s) on output stream "out".

Reimplemented in TAnnotation, TArc, TArrow, TASImage, TAxis3D, TBox, TButton, TCanvas, TChain, TCrown, TCurlyArc, TCurlyLine, TCutG, TDiamond, TEfficiency, TEllipse, TExec, TF12, TF1, TF2, TF3, TFrame, TGaxis, TGButton, TGButtonGroup, TGCanvas, TGCheckButton, TGColorSelect, TGColumnLayout, TGComboBox, TGCompositeFrame, TGContainer, TGDockableFrame, TGDoubleHSlider, TGDoubleVSlider, TGedMarkerSelect, TGedPatternSelect, TGeoArb8, TGeoBBox, TGeoBoolNode, TGeoCombiTrans, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoCtub, TGeoDecayChannel, TGeoElementRN, TGeoEltu, TGeoGtra, TGeoHalfSpace, TGeoHMatrix, TGeoHype, TGeoIdentity, TGeoIntersection, TGeoMaterial, TGeoMedium, TGeoMixture, TGeoPara, TGeoParaboloid, TGeoPatternCylPhi, TGeoPatternCylR, TGeoPatternParaX, TGeoPatternParaY, TGeoPatternParaZ, TGeoPatternSphPhi, TGeoPatternSphR, TGeoPatternSphTheta, TGeoPatternTrapZ, TGeoPatternX, TGeoPatternY, TGeoPatternZ, TGeoPcon, TGeoPgon, TGeoRotation, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoSubtraction, TGeoTessellated, TGeoTorus, TGeoTranslation, TGeoTrap, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoUnion, TGeoVolume, TGeoXtru, TGFileContainer, TGFont, TGFrame, TGFSComboBox, TGGC, TGGroupFrame, TGHButtonGroup, TGHorizontal3DLine, TGHorizontalFrame, TGHorizontalLayout, TGHProgressBar, TGHScrollBar, TGHSlider, TGHSplitter, TGHtml, TGIcon, TGLabel, TGLayoutHints, TGLineStyleComboBox, TGLineWidthComboBox, TGListBox, TGListDetailsLayout, TGListLayout, TGListTree, TGListView, TGLVContainer, TGMainFrame, TGMatrixLayout, TGMdiFrame, TGMdiMainFrame, TGMdiMenuBar, TGMenuBar, TGMenuTitle, TGNumberEntry, TGNumberEntryField, TGPictureButton, TGPopupMenu, TGProgressBar, TGRadioButton, TGraph2D, TGraph2DAsymmErrors, TGraph2DErrors, TGraph, TGraphAsymmErrors, TGraphBentErrors, TGraphEdge, TGraphErrors, TGraphMultiErrors, TGraphNode, TGraphPolar, TGraphPolargram, TGraphStruct, TGroupButton, TGRowLayout, TGShapedFrame, TGShutter, TGShutterItem, TGSplitFrame, TGStatusBar, TGTab, TGTabLayout, TGTableLayout, TGTableLayoutHints, TGTextButton, TGTextEdit, TGTextEntry, TGTextLBEntry, TGTextView, TGTileLayout, TGToolBar, TGTransientFrame, TGTripleHSlider, TGTripleVSlider, TGVButtonGroup, TGVertical3DLine, TGVerticalFrame, TGVerticalLayout, TGVFileSplitter, TGVProgressBar, TGVScrollBar, TGVSlider, TGVSplitter, TGXYLayout, TGXYLayoutHints, TH1, TH2Poly, THelix, THStack, TLatex, TLegend, TLine, TMacro, TMarker3DBox, TMarker, TMathText, TMultiGraph, TPad, TPaletteAxis, TParallelCoord, TParallelCoordVar, TPave, TPaveClass, TPaveLabel, TPaveStats, TPavesText, TPaveText, TPie, TPieSlice, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TProfile2D, TProfile3D, TProfile, TRootContainer, TRootEmbeddedCanvas, TScatter2D, TScatter, TSlider, TSliderBox, TSpline3, TSpline5, TStyle, TText, TTreePerfStats, and TWbox.

Definition at line 858 of file TObject.cxx.

SavePrimitiveConstructor()

void TObject::SavePrimitiveConstructor ( std::ostream & out, TClass * cl, const char * variable_name, const char * constructor_agrs = "", Bool_t empty_line = kTRUE )

staticprotectedinherited

Save object constructor in the output stream "out".

Can be used as first statement when implementing SavePrimitive() method for the object

Definition at line 777 of file TObject.cxx.

SavePrimitiveDraw()

void TObject::SavePrimitiveDraw ( std::ostream & out, const char * variable_name, Option_t * option = nullptr )

staticprotectedinherited

Save invocation of primitive Draw() method Skipped if option contains "nodraw" string.

Definition at line 845 of file TObject.cxx.

SavePrimitiveVector()

TString TObject::SavePrimitiveVector ( std::ostream & out, const char * prefix, Int_t len, Double_t * arr, Int_t flag = 0 )

staticprotectedinherited

Save array in the output stream "out" as vector.

Create unique variable name based on prefix value Returns name of vector which can be used in constructor or in other places of C++ code If flag === kTRUE, just add empty line If flag === 111, check if array is empty and return nullptr or <vectorname>.data()

Definition at line 796 of file TObject.cxx.

SetBit() [1/2]

void TObject::SetBit ( UInt_t f )

inlineinherited

Definition at line 202 of file TObject.h.

SetBit() [2/2]

void TObject::SetBit ( UInt_t f, Bool_t set )

inherited

Set or unset the user status bits as specified in f.

Definition at line 888 of file TObject.cxx.

SetBuffer()

void TBuffer::SetBuffer ( void * buf, UInt_t newsiz = 0, Bool_t adopt = kTRUE, ReAllocCharFun_t reallocfunc = nullptr )

inherited

Sets a new buffer in an existing TBuffer object.

If newsiz=0 then the new buffer is expected to have the same size as the previous buffer. The current buffer position is reset to the start of the buffer. If the TBuffer owned the previous buffer, it will be deleted prior to accepting the new buffer. By default the new buffer will be adopted unless adopt is false.

If the new buffer is not adopted and no memory allocation routine is provided, a Fatal error will be issued if the Buffer attempts to expand.

Definition at line 186 of file TBuffer.cxx.

SetBufferDisplacement() [1/2]

void TBufferIO::SetBufferDisplacement ( )

inlineoverridevirtualinherited

Implements TBuffer.

Definition at line 82 of file TBufferIO.h.

SetBufferDisplacement() [2/2]

void TBufferIO::SetBufferDisplacement ( Int_t skipped )

inlineoverridevirtualinherited

Implements TBuffer.

Definition at line 83 of file TBufferIO.h.

SetBufferOffset()

void TBuffer::SetBufferOffset ( Int_t offset = 0 )

inlineinherited

Definition at line 93 of file TBuffer.h.

SetByteCount()

void TBufferFile::SetByteCount ( UInt_t cntpos, Bool_t packInVersion = kFALSE )

overridevirtual

Set byte count at position cntpos in the buffer.

Generate warning if count larger than kMaxMapCount. The count is excluded its own size.

Note

If underflow or overflow, an Error ir raised (stricter checks in Debug mode)

Implements TBuffer.

Definition at line 324 of file TBufferFile.cxx.

SetDrawOption()

void TObject::SetDrawOption ( Option_t * option = "" )

virtualinherited

Set drawing option for object.

This option only affects the drawing style and is stored in the option field of the TObjOptLink supporting a TPad's primitive list (TList). Note that it does not make sense to call object.SetDrawOption(option) before having called object.Draw().

Reimplemented in RooPlot, TAxis, TBrowser, TGedFrame, TGFrame, TPad, TPaveStats, TRootBrowserLite, TSystemDirectory, and TSystemFile.

Definition at line 871 of file TObject.cxx.

SetDtorOnly()

void TObject::SetDtorOnly ( void * obj )

staticinherited

Set destructor only flag.

Definition at line 1204 of file TObject.cxx.

SetGlobalReadParam()

void TBufferIO::SetGlobalReadParam ( Int_t mapsize )

staticinherited

Set the initial size of the map used to store object and class references during reading.

The default size is kMapSize. Increasing the default has the benefit that when reading many small objects the array does not need to be resized too often (the system is always dynamic, even with the default everything will work, only the initial resizing will cost some time). Per TBuffer object this option can be changed using SetReadParam().

Definition at line 547 of file TBufferIO.cxx.

SetGlobalWriteParam()

void TBufferIO::SetGlobalWriteParam ( Int_t mapsize )

staticinherited

Set the initial size of the map used to store object and class references during reading.

The default size is kMapSize. Increasing the default has the benefit that when reading many small objects the array does not need to be resized too often (the system is always dynamic, even with the default everything will work, only the initial resizing will cost some time). Per TBuffer object this option can be changed using SetReadParam().

Definition at line 563 of file TBufferIO.cxx.

SetObjectStat()

void TObject::SetObjectStat ( Bool_t stat )

staticinherited

Turn on/off tracking of objects in the TObjectTable.

Definition at line 1188 of file TObject.cxx.

SetParent()

void TBuffer::SetParent ( TObject * parent )

inherited

Set parent owning this buffer.

Definition at line 269 of file TBuffer.cxx.

SetPidOffset()

void TBufferIO::SetPidOffset ( UShort_t offset )

overridevirtualinherited

This offset is used when a key (or basket) is transferred from one file to the other.

In this case the TRef and TObject might have stored a pid index (to retrieve TProcessIDs) which referred to their order on the original file, the fPidOffset is to be added to those values to correctly find the TProcessID. This fPidOffset needs to be increment if the key/basket is copied and need to be zero for new key/basket.

Implements TBuffer.

Definition at line 318 of file TBufferIO.cxx.

SetReadMode()

void TBuffer::SetReadMode ( )

inherited

Set buffer in read mode.

Definition at line 301 of file TBuffer.cxx.

SetReadParam()

void TBufferIO::SetReadParam ( Int_t mapsize )

overridevirtualinherited

Set the initial size of the map used to store object and class references during reading.

The default size is TBufferFile::kMapSize. Increasing the default has the benefit that when reading many small objects the map does not need to be resized too often (the system is always dynamic, even with the default everything will work, only the initial resizing will cost some time). This method can only be called directly after the creation of the TBuffer, before any reading is done. Globally this option can be changed using SetGlobalReadParam().

Implements TBuffer.

Definition at line 96 of file TBufferIO.cxx.

SetReAllocFunc()

void TBuffer::SetReAllocFunc ( ReAllocCharFun_t reallocfunc = nullptr )

inherited

Set which memory reallocation method to use.

If reallocafunc is null, reset it to the default value (TStorage::ReAlloc)

Definition at line 285 of file TBuffer.cxx.

SetStreamerElementNumber()

void TBufferFile::SetStreamerElementNumber ( TStreamerElement * , Int_t  )

inlineoverridevirtual

Implements TBuffer.

Definition at line 92 of file TBufferFile.h.

SetUniqueID()

void TObject::SetUniqueID ( UInt_t uid )

virtualinherited

Set the unique object id.

Definition at line 899 of file TObject.cxx.

SetWriteMode()

void TBuffer::SetWriteMode ( )

inherited

Set buffer in write mode.

Definition at line 315 of file TBuffer.cxx.

SetWriteParam()

void TBufferIO::SetWriteParam ( Int_t mapsize )

overridevirtualinherited

Set the initial size of the hashtable used to store object and class references during writing.

The default size is TBufferFile::kMapSize. Increasing the default has the benefit that when writing many small objects the hashtable does not get too many collisions (the system is always dynamic, even with the default everything will work, only a large number of collisions will cost performance). For optimal performance hashsize should always be a prime. This method can only be called directly after the creation of the TBuffer, before any writing is done. Globally this option can be changed using SetGlobalWriteParam().

Implements TBuffer.

Definition at line 116 of file TBufferIO.cxx.

ShouldNotReadCollection()

bool TBufferFile::ShouldNotReadCollection ( Int_t lengthInBytes, Int_t nElements = 1 ) const

inlineprotected

Definition at line 273 of file TBufferFile.h.

SkipObjectAny()

void TBufferFile::SkipObjectAny ( )

overridevirtual

Skip any kind of object from buffer.

Implements TBuffer.

Definition at line 2499 of file TBufferFile.cxx.

SkipVersion()

void TBufferFile::SkipVersion ( const TClass * cl = nullptr )

overridevirtual

Skip class version from I/O buffer.

Implements TBuffer.

Definition at line 2862 of file TBufferFile.cxx.

Streamer()

void TBufferFile::Streamer ( TBuffer & R__b )

overridevirtual

Stream an object of class TObject.

Reimplemented from TBuffer.

Reimplemented in TBufferSQL, and TMessage.

StreamerNVirtual()

void TBufferFile::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 266 of file TBufferFile.h.

StreamObject() [1/4]

void TBufferFile::StreamObject ( TObject * obj )

overridevirtual

Stream an object inheriting from TObject using its streamer.

Implements TBuffer.

Definition at line 3242 of file TBufferFile.cxx.

StreamObject() [2/4]

void TBufferFile::StreamObject ( void * obj, const char * className, const TClass * onFileClass = nullptr )

overridevirtual

Stream an object given the name of its actual class.

Implements TBuffer.

Definition at line 3224 of file TBufferFile.cxx.

StreamObject() [3/4]

void TBufferFile::StreamObject ( void * obj, const std::type_info & typeinfo, const TClass * onFileClass = nullptr )

overridevirtual

Stream an object given its C++ typeinfo information.

Implements TBuffer.

Definition at line 3214 of file TBufferFile.cxx.

StreamObject() [4/4]

void TBufferFile::StreamObject ( void * obj, const TClass * cl, const TClass * onFileClass = nullptr )

overridevirtual

Stream an object given a pointer to its actual class.

Implements TBuffer.

Definition at line 3234 of file TBufferFile.cxx.

SysError()

void TObject::SysError ( const char * location, const char * fmt, ... ) const

virtualinherited

Issue system error message.

Use "location" to specify the method where the system error occurred. Accepts standard printf formatting arguments.

Definition at line 1112 of file TObject.cxx.

TagStreamerInfo()

void TBufferIO::TagStreamerInfo ( TVirtualStreamerInfo * info )

overridevirtualinherited

Mark the classindex of the current file as using this TStreamerInfo.

Implements TBuffer.

Reimplemented in TMessage.

Definition at line 349 of file TBufferIO.cxx.

TestBit()

Bool_t TObject::TestBit ( UInt_t f ) const

inlineinherited

Definition at line 204 of file TObject.h.

TestBits()

Int_t TObject::TestBits ( UInt_t f ) const

inlineinherited

Definition at line 205 of file TObject.h.

UseCurrentStyle()

void TObject::UseCurrentStyle ( )

virtualinherited

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

Reimplemented in TAxis3D, TCanvas, TFrame, TGraph, TH1, TPad, TPaveStats, TPaveText, and TTree.

Definition at line 909 of file TObject.cxx.

Void_Hash()

ULong_t TBufferIO::Void_Hash ( const void * ptr )

inlinestaticprotectedinherited

Return hash value for provided object.

Definition at line 53 of file TBufferIO.h.

Warning()

void TObject::Warning ( const char * location, const char * fmt, ... ) const

virtualinherited

Issue warning message.

Use "location" to specify the method where the warning occurred. Accepts standard printf formatting arguments.

Definition at line 1084 of file TObject.cxx.

Write() [1/2]

Int_t TBuffer::Write ( const char * name, Int_t option, Int_t bufsize ) const

inlineoverrideprotectedvirtualinherited

Write this object to the current directory.

The data structure corresponding to this object is serialized. The corresponding buffer is written to the current directory with an associated key with name "name".

Writing an object to a file involves the following steps:

• Creation of a support TKey object in the current directory. The TKey object creates a TBuffer object.
• The TBuffer object is filled via the class::Streamer function.
• If the file is compressed (default) a second buffer is created to hold the compressed buffer.
• Reservation of the corresponding space in the file by looking in the TFree list of free blocks of the file.
• The buffer is written to the file.

Bufsize can be given to force a given buffer size to write this object. By default, the buffersize will be taken from the average buffer size of all objects written to the current file so far.

If a name is specified, it will be the name of the key. If name is not given, the name of the key will be the name as returned by GetName().

The option can be a combination of: kSingleKey, kOverwrite or kWriteDelete Using the kOverwrite option a previous key with the same name is overwritten. The previous key is deleted before writing the new object. Using the kWriteDelete option a previous key with the same name is deleted only after the new object has been written. This option is safer than kOverwrite but it is slower. NOTE: Neither kOverwrite nor kWriteDelete reduces the size of a TFile– the space is simply freed up to be overwritten; in the case of a TTree, it is more complicated. If one opens a TTree, appends some entries, then writes it out, the behaviour is effectively the same. If, however, one creates a new TTree and writes it out in this way, only the metadata is replaced, effectively making the old data invisible without deleting it. TTree::Delete() can be used to mark all disk space occupied by a TTree as free before overwriting its metadata this way. The kSingleKey option is only used by TCollection::Write() to write a container with a single key instead of each object in the container with its own key.

An object is read from the file into memory via TKey::Read() or via TObject::Read().

The function returns the total number of bytes written to the file. It returns 0 if the object cannot be written.

Reimplemented from TObject.

Definition at line 69 of file TBuffer.h.

Write() [2/2]

Int_t TBuffer::Write ( const char * name, Int_t option, Int_t bufsize )

inlineoverrideprotectedvirtualinherited

Write this object to the current directory.

For more see the const version of this method.

Reimplemented from TObject.

Definition at line 67 of file TBuffer.h.

WriteArray() [1/13]

void TBufferFile::WriteArray ( const Bool_t * b, Int_t n )

overridevirtual

Write array of n bools into the I/O buffer.

Implements TBuffer.

Definition at line 1721 of file TBufferFile.cxx.

WriteArray() [2/13]

void TBufferFile::WriteArray ( const Char_t * c, Int_t n )

overridevirtual

Write array of n characters into the I/O buffer.

Implements TBuffer.

Definition at line 1746 of file TBufferFile.cxx.

WriteArray() [3/13]

void TBufferFile::WriteArray ( const Double_t * d, Int_t n )

overridevirtual

Write array of n doubles into the I/O buffer.

Implements TBuffer.

Definition at line 1919 of file TBufferFile.cxx.

WriteArray() [4/13]

void TBufferFile::WriteArray ( const Float_t * f, Int_t n )

overridevirtual

Write array of n floats into the I/O buffer.

Implements TBuffer.

Definition at line 1889 of file TBufferFile.cxx.

WriteArray() [5/13]

void TBufferFile::WriteArray ( const Int_t * i, Int_t n )

overridevirtual

Write array of n ints into the I/O buffer.

Implements TBuffer.

Definition at line 1796 of file TBufferFile.cxx.

WriteArray() [6/13]

void TBufferFile::WriteArray ( const Long64_t * l, Int_t n )

overridevirtual

Write array of n long longs into the I/O buffer.

Implements TBuffer.

Definition at line 1864 of file TBufferFile.cxx.

WriteArray() [7/13]

void TBufferFile::WriteArray ( const Long_t * l, Int_t n )

overridevirtual

Write array of n longs into the I/O buffer.

Implements TBuffer.

Definition at line 1826 of file TBufferFile.cxx.

WriteArray() [8/13]

void TBufferFile::WriteArray ( const Short_t * h, Int_t n )

overridevirtual

Write array of n shorts into the I/O buffer.

Implements TBuffer.

Definition at line 1766 of file TBufferFile.cxx.

WriteArray() [9/13]

void TBufferFile::WriteArray ( const UChar_t * c, Int_t n )

inlineoverridevirtual

Implements TBuffer.

Definition at line 515 of file TBufferFile.h.

WriteArray() [10/13]

void TBufferFile::WriteArray ( const UInt_t * i, Int_t n )

inlineoverridevirtual

Implements TBuffer.

Definition at line 521 of file TBufferFile.h.

WriteArray() [11/13]

void TBufferFile::WriteArray ( const ULong64_t * l, Int_t n )

inlineoverridevirtual

Implements TBuffer.

Definition at line 524 of file TBufferFile.h.

WriteArray() [12/13]

void TBufferFile::WriteArray ( const ULong_t * ll, Int_t n )

overridevirtual

Write array of n unsigned longs into the I/O buffer.

This is an explicit case for unsigned longs since signed longs have a special tobuf().

Implements TBuffer.

Definition at line 1846 of file TBufferFile.cxx.

WriteArray() [13/13]

void TBufferFile::WriteArray ( const UShort_t * h, Int_t n )

inlineoverridevirtual

Implements TBuffer.

Definition at line 518 of file TBufferFile.h.

WriteArrayDouble32()

void TBufferFile::WriteArrayDouble32 ( const Double_t * d, Int_t n, TStreamerElement * ele = nullptr )

overridevirtual

Write array of n doubles (as float) into the I/O buffer.

see comments about Double32_t encoding at TBufferFile::WriteDouble32

Implements TBuffer.

Definition at line 1965 of file TBufferFile.cxx.

WriteArrayFloat16()

void TBufferFile::WriteArrayFloat16 ( const Float_t * f, Int_t n, TStreamerElement * ele = nullptr )

overridevirtual

Write array of n floats (as truncated float) into the I/O buffer.

see comments about Float16_t encoding at TBufferFile::WriteFloat16

Implements TBuffer.

Definition at line 1945 of file TBufferFile.cxx.

WriteBool()

void TBufferFile::WriteBool ( Bool_t b )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 283 of file TBufferFile.h.

WriteBuf()

void TBufferFile::WriteBuf ( const void * buf, Int_t max )

overridevirtual

Write max bytes from buf into the I/O buffer.

Implements TBuffer.

Definition at line 3359 of file TBufferFile.cxx.

WriteChar()

void TBufferFile::WriteChar ( Char_t c )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 290 of file TBufferFile.h.

WriteCharP()

void TBufferFile::WriteCharP ( const Char_t * c )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 374 of file TBufferFile.h.

WriteCharStar()

void TBufferFile::WriteCharStar ( char * s )

overridevirtual

Write char* into TBuffer.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 306 of file TBufferFile.cxx.

WriteClass()

void TBufferFile::WriteClass ( const TClass * cl )

overridevirtual

Write class description to I/O buffer.

Implements TBuffer.

Definition at line 2824 of file TBufferFile.cxx.

WriteClassBuffer()

Int_t TBufferFile::WriteClassBuffer ( const TClass * cl, void * pointer )

overridevirtual

Function called by the Streamer functions to serialize object at p to buffer b.

The optional argument info may be specified to give an alternative StreamerInfo instead of using the default StreamerInfo automatically built from the class definition. For more information, see class TStreamerInfo.

Implements TBuffer.

Definition at line 3691 of file TBufferFile.cxx.

WriteClones()

Int_t TBufferIO::WriteClones ( TClonesArray * a, Int_t nobjects )

overridevirtualinherited

Interface to TStreamerInfo::WriteBufferClones.

Implements TBuffer.

Definition at line 384 of file TBufferIO.cxx.

WriteDouble()

void TBufferFile::WriteDouble ( Double_t d )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 367 of file TBufferFile.h.

WriteDouble32()

void TBufferFile::WriteDouble32 ( Double_t * d, TStreamerElement * elem = nullptr )

overridevirtual

Write a Double32_t to the buffer.

The following cases are supported for streaming a Double32_t type depending on the range declaration in the comment field of the data member:

Case	Example
A	Double32_t fNormal;
B	Double32_t fTemperature; //[0,100]
C	Double32_t fCharge; //[-1,1,2]
D	Double32_t fVertex[3]; //[-30,30,10]
E	Double32_t fChi2; //[0,0,6]
F	Int_t fNsp; Double32_t* fPointValue; //[fNsp][0,3]

In case A fNormal is converted from a Double_t to a Float_t In case B fTemperature is converted to a 32 bit unsigned integer In case C fCharge is converted to a 2 bits unsigned integer In case D the array elements of fVertex are converted to an unsigned 10 bits integer In case E fChi2 is converted to a Float_t with mantissa truncated precision at 6 bits In case F the fNsp elements of array fPointvalue are converted to an unsigned 32 bit integer Note that the range specifier must follow the dimension specifier. Case B has more precision (9 to 10 significative digits than case A (6 to 7 digits). See TBufferFile::WriteFloat16 for more information.

see example of use of the Double32_t data type in tutorial double32.C

Implements TBuffer.

Definition at line 681 of file TBufferFile.cxx.

WriteFastArray() [1/15]

void TBufferFile::WriteFastArray ( const Bool_t * b, Long64_t n )

overridevirtual

Write array of n bools into the I/O buffer.

Note

Due to the current limit of the buffer size, the function aborts execution of the program in case of underflow or overflow. See https://github.com/root-project/root/issues/6734 for more details.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 1985 of file TBufferFile.cxx.

WriteFastArray() [2/15]

void TBufferFile::WriteFastArray ( const Char_t * c, Long64_t n )

overridevirtual

Write array of n characters into the I/O buffer.

Note

Due to the current limit of the buffer size, the function aborts execution of the program in case of underflow or overflow. See https://github.com/root-project/root/issues/6734 for more details.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 2013 of file TBufferFile.cxx.

WriteFastArray() [3/15]

void TBufferFile::WriteFastArray ( const Double_t * d, Long64_t n )

overridevirtual

Write array of n doubles into the I/O buffer.

Note

Due to the current limit of the buffer size, the function aborts execution of the program in case of underflow or overflow. See https://github.com/root-project/root/issues/6734 for more details.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 2239 of file TBufferFile.cxx.

WriteFastArray() [4/15]

void TBufferFile::WriteFastArray ( const Float_t * f, Long64_t n )

overridevirtual

Write array of n floats into the I/O buffer.

Note

Due to the current limit of the buffer size, the function aborts execution of the program in case of underflow or overflow. See https://github.com/root-project/root/issues/6734 for more details.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 2206 of file TBufferFile.cxx.

WriteFastArray() [5/15]

void TBufferFile::WriteFastArray ( const Int_t * ii, Long64_t n )

overridevirtual

Write array of n ints into the I/O buffer.

Note

Due to the current limit of the buffer size, the function aborts execution of the program in case of underflow or overflow. See https://github.com/root-project/root/issues/6734 for more details.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 2099 of file TBufferFile.cxx.

WriteFastArray() [6/15]

void TBufferFile::WriteFastArray ( const Long64_t * ll, Long64_t n )

overridevirtual

Write array of n long longs into the I/O buffer.

Note

Due to the current limit of the buffer size, the function aborts execution of the program in case of underflow or overflow. See https://github.com/root-project/root/issues/6734 for more details.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 2178 of file TBufferFile.cxx.

WriteFastArray() [7/15]

void TBufferFile::WriteFastArray ( const Long_t * ll, Long64_t n )

overridevirtual

Write array of n longs into the I/O buffer with 8-byte width.

Note

Due to the current limit of the buffer size, the function aborts execution of the program in case of underflow or overflow. See https://github.com/root-project/root/issues/6734 for more details.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 2132 of file TBufferFile.cxx.

WriteFastArray() [8/15]

void TBufferFile::WriteFastArray ( const Short_t * h, Long64_t n )

overridevirtual

Write array of n shorts into the I/O buffer.

Note

Due to the current limit of the buffer size, the function aborts execution of the program in case of underflow or overflow. See https://github.com/root-project/root/issues/6734 for more details.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 2066 of file TBufferFile.cxx.

WriteFastArray() [9/15]

void TBufferFile::WriteFastArray ( const UChar_t * c, Long64_t n )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 528 of file TBufferFile.h.

WriteFastArray() [10/15]

void TBufferFile::WriteFastArray ( const UInt_t * i, Long64_t n )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 534 of file TBufferFile.h.

WriteFastArray() [11/15]

void TBufferFile::WriteFastArray ( const ULong64_t * l, Long64_t n )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 537 of file TBufferFile.h.

WriteFastArray() [12/15]

void TBufferFile::WriteFastArray ( const ULong_t * ll, Long64_t n )

overridevirtual

Write array of n unsigned longs into the I/O buffer with 8-byte width.

This is an explicit case for unsigned longs since signed longs have a special tobuf().

Note

Due to the current limit of the buffer size, the function aborts execution of the program in case of underflow or overflow. See https://github.com/root-project/root/issues/6734 for more details.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 2156 of file TBufferFile.cxx.

WriteFastArray() [13/15]

void TBufferFile::WriteFastArray ( const UShort_t * h, Long64_t n )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 531 of file TBufferFile.h.

WriteFastArray() [14/15]

Int_t TBufferFile::WriteFastArray ( void ** start, const TClass * cl, Long64_t n = 1, Bool_t isPreAlloc = kFALSE, TMemberStreamer * streamer = nullptr )

overridevirtual

Write an array of object starting at the address '*start' and of length 'n' the objects in the array are of class 'cl' 'isPreAlloc' indicates whether the data member is marked with '->' Return:

• 0: success
• 2: truncated success (i.e actual class is missing. Only ptrClass saved.)
• -1: underflow, operation skipped

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 2438 of file TBufferFile.cxx.

WriteFastArray() [15/15]

void TBufferFile::WriteFastArray ( void * start, const TClass * cl, Long64_t n = 1, TMemberStreamer * streamer = nullptr )

overridevirtual

Write an array of object starting at the address 'start' and of length 'n' the objects in the array are assumed to be of class 'cl'.

Note

Due to the current limit of the buffer size, the function aborts execution of the program in case of underflow or overflow. See https://github.com/root-project/root/issues/6734 for more details.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 2407 of file TBufferFile.cxx.

WriteFastArrayDouble32()

void TBufferFile::WriteFastArrayDouble32 ( const Double_t * d, Long64_t n, TStreamerElement * elem = nullptr )

overridevirtual

Write array of n doubles (as float) into the I/O buffer.

see comments about Double32_t encoding at TBufferFile::WriteDouble32

Note

Due to the current limit of the buffer size, the function aborts execution of the program in case of underflow or overflow. See https://github.com/root-project/root/issues/6734 for more details.

Implements TBuffer.

Definition at line 2334 of file TBufferFile.cxx.

WriteFastArrayFloat16()

void TBufferFile::WriteFastArrayFloat16 ( const Float_t * f, Long64_t n, TStreamerElement * elem = nullptr )

overridevirtual

Write array of n floats (as truncated float) into the I/O buffer.

see comments about Float16_t encoding at TBufferFile::WriteFloat16

Note

Due to the current limit of the buffer size, the function aborts execution of the program in case of underflow or overflow. See https://github.com/root-project/root/issues/6734 for more details.

Implements TBuffer.

Definition at line 2268 of file TBufferFile.cxx.

WriteFastArrayString()

void TBufferFile::WriteFastArrayString ( const Char_t * c, Long64_t n )

overridevirtual

Write array of n characters into the I/O buffer.

Note

Due to the current limit of the buffer size, the function aborts execution of the program in case of underflow or overflow. See https://github.com/root-project/root/issues/6734 for more details.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 2036 of file TBufferFile.cxx.

WriteFloat()

void TBufferFile::WriteFloat ( Float_t f )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 360 of file TBufferFile.h.

WriteFloat16()

void TBufferFile::WriteFloat16 ( Float_t * f, TStreamerElement * elem = nullptr )

overridevirtual

Write a Float16_t to the buffer.

The following cases are supported for streaming a Float16_t type depending on the range declaration in the comment field of the data member:

Case	Example
A	Float16_t fNormal;
B	Float16_t fTemperature; //[0,100]
C	Float16_t fCharge; //[-1,1,2]
D	Float16_t fVertex[3]; //[-30,30,10]
E	Float16_t fChi2; //[0,0,6]
F	Int_t fNsp; Float16_t* fPointValue; //[fNsp][0,3]

• In case A fNormal is converted from a Float_t to a Float_t with mantissa truncated to 12 bits
• In case B fTemperature is converted to a 32 bit unsigned integer
• In case C fCharge is converted to a 2 bits unsigned integer
• In case D the array elements of fVertex are converted to an unsigned 10 bits integer
• In case E fChi2 is converted to a Float_t with truncated precision at 6 bits
• In case F the fNsp elements of array fPointvalue are converted to an unsigned 32 bit integer Note that the range specifier must follow the dimension specifier. Case B has more precision (9 to 10 significative digits than case A (6 to 7 digits). In Case A and E, the exponent is stored as is (8 bits), for a total of 21 bits (including 1 bit for sign)

The range specifier has the general format: [xmin,xmax] or [xmin,xmax,nbits]

• [0,1];
• [-10,100];
• [-pi,pi], [-pi/2,pi/4],[-2pi,2*pi]
• [-10,100,16]
• [0,0,8] if nbits is not specified, or nbits <2 or nbits>16 it is set to 16. If (xmin==0 and xmax==0 and nbits <=14) the float word will have its mantissa truncated to nbits significative bits.

IMPORTANT NOTE

NOTE 1

Lets assume an original variable float x: When using the format [0,0,8] (ie range not specified) you get the best relative precision when storing and reading back the truncated x, say xt. The variance of (x-xt)/x will be better than when specifying a range for the same number of bits. However the precision relative to the range (x-xt)/(xmax-xmin) will be worst, and vice-versa. The format [0,0,8] is also interesting when the range of x is infinite or unknown.

NOTE 2

It is important to understand the difference with the meaning of nbits

• in case of [-1,1,nbits], nbits is the total number of bits used to make the conversion from a float to an integer
• in case of [0,0,nbits], nbits is the number of bits used for the mantissa, to which is added 8 bits for the exponent.

See example of use of the Float16_t data type in tutorial float16.C

Implements TBuffer.

Definition at line 612 of file TBufferFile.cxx.

WriteInt()

void TBufferFile::WriteInt ( Int_t i )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 318 of file TBufferFile.h.

WriteLong()

void TBufferFile::WriteLong ( Long_t l )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 332 of file TBufferFile.h.

WriteLong64()

void TBufferFile::WriteLong64 ( Long64_t l )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 346 of file TBufferFile.h.

WriteObject() [1/2]

template<class T>

Int_t TBuffer::WriteObject ( const T * objptr, Bool_t cacheReuse = kTRUE )

inlineinherited

Definition at line 159 of file TBuffer.h.

WriteObject() [2/2]

void TBufferIO::WriteObject ( const TObject * obj, Bool_t cacheReuse = kTRUE )

overridevirtualinherited

Write object to I/O buffer.

Implements TBuffer.

Definition at line 529 of file TBufferIO.cxx.

WriteObjectAny()

Int_t TBufferIO::WriteObjectAny ( const void * obj, const TClass * ptrClass, Bool_t cacheReuse = kTRUE )

overridevirtualinherited

Write object to I/O buffer.

This function assumes that the value in 'obj' is the value stored in a pointer to a "ptrClass". The actual type of the object pointed to can be any class derived from "ptrClass". Return:

• 0: failure
• 1: success
• 2: truncated success (i.e actual class is missing. Only ptrClass saved.)

If 'cacheReuse' is true (default) upon seeing an object address a second time, we record the offset where its was written the first time rather than streaming the object a second time. If 'cacheReuse' is false, we always stream the object. This allows the (re)use of temporary object to store different data in the same buffer.

Implements TBuffer.

Definition at line 491 of file TBufferIO.cxx.

WriteObjectClass()

void TBufferFile::WriteObjectClass ( const void * actualObjectStart, const TClass * actualClass, Bool_t cacheReuse )

overrideprotectedvirtual

Write object to I/O buffer.

This function assumes that the value of 'actualObjectStart' is the actual start of the object of class 'actualClass' If 'cacheReuse' is true (default) upon seeing an object address a second time, we record the offset where its was written the first time rather than streaming the object a second time. If 'cacheReuse' is false, we always stream the object. This allows the (re)use of temporary object to store different data in the same buffer.

Implements TBufferIO.

Definition at line 2661 of file TBufferFile.cxx.

WriteProcessID()

UShort_t TBufferIO::WriteProcessID ( TProcessID * pid )

overridevirtualinherited

Check if the ProcessID pid is already in the file.

If not, add it and return the index number in the local file list.

Implements TBuffer.

Reimplemented in TMessage.

Definition at line 455 of file TBufferIO.cxx.

WriteShort()

void TBufferFile::WriteShort ( Short_t s )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 304 of file TBufferFile.h.

WriteStdString() [1/2]

void TBufferFile::WriteStdString ( const std::string * s )

overridevirtual

Write std::string to TBuffer.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 261 of file TBufferFile.cxx.

WriteStdString() [2/2]

virtual void TBuffer::WriteStdString ( std::string & s )

inlinevirtual

Reimplemented from TBuffer.

Reimplemented in TBufferSQL.

Definition at line 312 of file TBuffer.h.

WriteString()

void TBufferFile::WriteString ( const char * s )

overridevirtual

Write string to I/O buffer.

Writes string upto and including the terminating 0.

Implements TBuffer.

Definition at line 3404 of file TBufferFile.cxx.

WriteTString()

void TBufferFile::WriteTString ( const TString & s )

overridevirtual

Write TString to TBuffer.

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 211 of file TBufferFile.cxx.

WriteUChar()

void TBufferFile::WriteUChar ( UChar_t c )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 297 of file TBufferFile.h.

WriteUInt()

void TBufferFile::WriteUInt ( UInt_t i )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 325 of file TBufferFile.h.

WriteULong()

void TBufferFile::WriteULong ( ULong_t l )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 339 of file TBufferFile.h.

WriteULong64()

void TBufferFile::WriteULong64 ( ULong64_t l )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 353 of file TBufferFile.h.

WriteUShort()

void TBufferFile::WriteUShort ( UShort_t s )

inlineoverridevirtual

Implements TBuffer.

Reimplemented in TBufferSQL.

Definition at line 311 of file TBufferFile.h.

WriteVersion()

UInt_t TBufferFile::WriteVersion ( const TClass * cl, Bool_t useBcnt = kFALSE )

overridevirtual

Write class version to I/O buffer.

Implements TBuffer.

Definition at line 3153 of file TBufferFile.cxx.

WriteVersionMemberWise()

UInt_t TBufferFile::WriteVersionMemberWise ( const TClass * cl, Bool_t useBcnt = kFALSE )

overridevirtual

Write class version to I/O buffer after setting the kStreamedMemberWise bit in the version number.

Implements TBuffer.

Definition at line 3183 of file TBufferFile.cxx.

Member Data Documentation

fBits

UInt_t TObject::fBits

privateinherited

bit field status word

Definition at line 47 of file TObject.h.

fBufCur

char* TBuffer::fBufCur

protectedinherited

Definition at line 52 of file TBuffer.h.

fBuffer

char* TBuffer::fBuffer

protectedinherited

Definition at line 51 of file TBuffer.h.

fBufMax

char* TBuffer::fBufMax

protectedinherited

Definition at line 53 of file TBuffer.h.

fBufSize

Int_t TBuffer::fBufSize

protectedinherited

Definition at line 50 of file TBuffer.h.

fCacheStack

CacheList_t TBuffer::fCacheStack

protectedinherited

Definition at line 56 of file TBuffer.h.

fClassMap

TExMap* TBufferIO::fClassMap {nullptr}

protectedinherited

Map containing object,class pairs for reading.

Definition at line 40 of file TBufferIO.h.

fDisplacement

Int_t TBufferIO::fDisplacement {0}

protectedinherited

Value to be added to the map offsets.

Definition at line 37 of file TBufferIO.h.

fgDtorOnly

Longptr_t TObject::fgDtorOnly = 0

staticprivateinherited

object for which to call dtor only (i.e. no delete)

Definition at line 49 of file TObject.h.

fgMapSize

Int_t TBufferIO::fgMapSize = kMapSize

staticprotectedinherited

Default map size for all TBuffer objects.

Definition at line 42 of file TBufferIO.h.

fgObjectStat

Bool_t TObject::fgObjectStat = kTRUE

staticprivateinherited

if true keep track of objects in TObjectTable

Definition at line 50 of file TObject.h.

fInfo

TStreamerInfo* TBufferFile::fInfo {nullptr}

protected

Pointer to TStreamerInfo object writing/reading the buffer.

Definition at line 52 of file TBufferFile.h.

fInfoStack

InfoList_t TBufferFile::fInfoStack

protected

Stack of pointers to the TStreamerInfos.

Definition at line 53 of file TBufferFile.h.

fMap

TExMap* TBufferIO::fMap {nullptr}

protectedinherited

Map containing object,offset pairs for reading/writing.

Definition at line 39 of file TBufferIO.h.

fMapCount

Int_t TBufferIO::fMapCount {0}

protectedinherited

Number of objects or classes in map.

Definition at line 35 of file TBufferIO.h.

fMapSize

Int_t TBufferIO::fMapSize {0}

protectedinherited

Default size of map.

Definition at line 36 of file TBufferIO.h.

fMode

Bool_t TBuffer::fMode

protectedinherited

Definition at line 48 of file TBuffer.h.

fParent

TObject* TBuffer::fParent

protectedinherited

Definition at line 54 of file TBuffer.h.

fPidOffset

UShort_t TBufferIO::fPidOffset {0}

protectedinherited

Offset to be added to the pid index in this key/buffer.

Definition at line 38 of file TBufferIO.h.

fReAllocFunc

ReAllocCharFun_t TBuffer::fReAllocFunc

protectedinherited

! Realloc function to be used when extending the buffer.

Definition at line 55 of file TBuffer.h.

fUniqueID

UInt_t TObject::fUniqueID

privateinherited

object unique identifier

Definition at line 46 of file TObject.h.

fVersion

Int_t TBuffer::fVersion

protectedinherited

Definition at line 49 of file TBuffer.h.

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

• io/io/inc/TBufferFile.h
• io/io/src/TBufferFile.cxx