Used to pass a selection expression to the Tree drawing routine.

See TTree::Draw

A TreeFormula can contain any arithmetic expression including standard operators and mathematical functions separated by operators. Examples of valid expression:

"x<y && sqrt(z)>3.2"

TTreeFormula now relies on a variety of TFormLeafInfo classes to handle the reading of the information. Here is the list of theses classes:

The following method are available from the TFormLeafInfo interface:

AddOffset(Int_t offset, TStreamerElement* element)
GetCounterValue(TLeaf* leaf) : return the size of the array pointed to.
GetObjectAddress(TLeafElement* leaf) : Returns the the location of the object pointed to.
GetMultiplicity() : Returns info on the variability of the number of elements
GetNdata(TLeaf* leaf) : Returns the number of elements
GetNdata() : Used by GetNdata(TLeaf* leaf)
GetValue(TLeaf *leaf, Int_t instance = 0) : Return the value
GetValuePointer(TLeaf *leaf, Int_t instance = 0) : Returns the address of the value
GetLocalValuePointer(TLeaf *leaf, Int_t instance = 0) : Returns the address of the value of 'this' LeafInfo
IsString()
ReadValue(char *where, Int_t instance = 0) : Internal function to interpret the location 'where'
Update() : react to the possible loading of a shared library.

Definition at line 58 of file TTreeFormula.h.

Classes
struct	RealInstanceCache

Public Member Functions
	TTreeFormula ()

	TTreeFormula (const char name, const char formula, TTree *tree)
	Normal TTree Formula Constuctor. More...

virtual	~TTreeFormula ()
	Tree Formula default destructor. More...

virtual Int_t	DefinedVariable (TString &variable, Int_t &action)
	Check if name is in the list of Tree/Branch leaves. More...

virtual TClass *	EvalClass () const
	Evaluate the class of this treeformula. More...

template<typename T >
T	EvalInstance (Int_t i=0, const char *stringStack[]=0)
	Evaluate this treeformula. More...

virtual Double_t	EvalInstance (Int_t i=0, const char *stringStack[]=0)

virtual Long64_t	EvalInstance64 (Int_t i=0, const char *stringStack[]=0)

virtual LongDouble_t	EvalInstanceLD (Int_t i=0, const char *stringStack[]=0)

virtual void *	EvalObject (Int_t i=0)
	Evaluate this treeformula. More...

virtual const char *	EvalStringInstance (Int_t i=0)
	Eval the instance as a string. More...

template<>
LongDouble_t	GetConstant (Int_t k)

template<>
Long64_t	GetConstant (Int_t k)

virtual TLeaf *	GetLeaf (Int_t n) const
	Return leaf corresponding to serial number n. More...

TFormLeafInfo *	GetLeafInfo (Int_t code) const
	Return DataMember corresponding to code. More...

TTreeFormulaManager *	GetManager () const

TMethodCall *	GetMethodCall (Int_t code) const
	Return methodcall corresponding to code. More...

virtual Int_t	GetMultiplicity () const

virtual Int_t	GetNcodes () const

virtual Int_t	GetNdata ()
	Return number of available instances in the formula. More...

virtual TTree *	GetTree () const

virtual Bool_t	IsInteger (Bool_t fast=kTRUE) const
	Return TRUE if the formula corresponds to one single Tree leaf and this leaf is short, int or unsigned short, int When a leaf is of type integer or string, the generated histogram is forced to have an integer bin width. More...

Bool_t	IsQuickLoad () const

virtual Bool_t	IsString () const
	Return TRUE if the formula is a string. More...

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

virtual char *	PrintValue (Int_t mode=0) const
	Return value of variable as a string. More...

virtual char *	PrintValue (Int_t mode, Int_t instance, const char *decform="9.9") const
	Return value of variable as a string. More...

virtual void	ResetLoading ()
	Tell the formula that we are going to request a new entry. More...

virtual void	SetAxis (TAxis *axis=0)
	Set the axis (in particular get the type). More...

void	SetQuickLoad (Bool_t quick)

virtual void	SetTree (TTree *tree)

virtual void	UpdateFormulaLeaves ()
	This function is called TTreePlayer::UpdateFormulaLeaves, itself called by TChain::LoadTree when a new Tree is loaded. More...

Public Member Functions inherited from ROOT::v5::TFormula
	TFormula ()
	Formula default constructor. More...

	TFormula (const char name, const char formula)
	Normal Formula constructor. More...

	TFormula (const TFormula &formula)
	Default constructor. More...

virtual	~TFormula ()
	Formula default destructor. More...

virtual void	Analyze (const char *schain, Int_t &err, Int_t offset=0)
	Analyze a sub-expression in one formula. More...

virtual Bool_t	AnalyzeFunction (TString &chaine, Int_t &err, Int_t offset=0)
	Check if the chain as function call. More...

virtual void	Clear (Option_t *option="")
	Resets the objects. More...

virtual Int_t	Compile (const char *expression="")
	Compile expression already stored in fTitle. More...

virtual void	Copy (TObject &formula) const
	Copy this formula. More...

virtual char *	DefinedString (Int_t code)
	Return address of string corresponding to special code. More...

virtual Double_t	DefinedValue (Int_t code)
	Return value corresponding to special code. More...

virtual Double_t	Eval (Double_t x, Double_t y=0, Double_t z=0, Double_t t=0) const
	Evaluate this formula. More...

virtual Double_t	EvalPar (const Double_t x, const Double_t params=0)

virtual Double_t	EvalParOld (const Double_t x, const Double_t params=0)
	Evaluate this formula. More...

virtual TString	GetExpFormula (Option_t *option="") const
	Reconstruct the formula expression from the internal TFormula member variables. More...

virtual const TObject *	GetLinearPart (Int_t i)
	Return linear part. More...

virtual Int_t	GetNdim () const

virtual Int_t	GetNpar () const

virtual Int_t	GetNumber () const

Double_t	GetParameter (Int_t ipar) const
	Return value of parameter number ipar. More...

Double_t	GetParameter (const char *name) const
	Return value of parameter named parName. More...

virtual Double_t *	GetParameters () const

virtual void	GetParameters (Double_t *params)

virtual const char *	GetParName (Int_t ipar) const
	Return name of one parameter. More...

virtual Int_t	GetParNumber (const char *name) const
	Return parameter number by name. More...

virtual Bool_t	IsLinear () const

virtual Bool_t	IsNormalized () const

TFormula &	operator= (const TFormula &rhs)
	Operator =. More...

void	Optimize ()
	MI include. More...

virtual void	Print (Option_t *option="") const
	Dump this formula with its attributes. More...

virtual void	ProcessLinear (TString &replaceformula)
	If the formula is for linear fitting, change the title to normal and fill the LinearParts array. More...

virtual void	SetNumber (Int_t number)

virtual void	SetParameter (const char *name, Double_t parvalue)
	Initialize parameter number ipar. More...

virtual void	SetParameter (Int_t ipar, Double_t parvalue)
	Initialize parameter number ipar. More...

virtual void	SetParameters (const Double_t *params)
	Initialize array of all parameters. More...

virtual void	SetParameters (Double_t p0, Double_t p1, Double_t p2=0, Double_t p3=0, Double_t p4=0, Double_t p5=0, Double_t p6=0, Double_t p7=0, Double_t p8=0, Double_t p9=0, Double_t p10=0)
	Initialize up to 11 parameters All arguments except THE FIRST TWO are optional In case of a function with only one parameter, call this function with p1=0. More...

virtual void	SetParName (Int_t ipar, const char *name)
	Set name of parameter number ipar. More...

virtual void	SetParNames (const char name0="p0", const char name1="p1", const char name2="p2", const char name3="p3", const char name4="p4", const char name5="p5", const char name6="p6", const char name7="p7", const char name8="p8", const char name9="p9", const char *name10="p10")
	Set up to 11 parameter names. More...

void	Streamer (TBuffer &b, const TClass *onfile_class)
	Stream a class object. More...

void	Streamer (TBuffer &b, Int_t version, UInt_t start, UInt_t count, const TClass *onfile_class=0)
	specialized streamer function being able to read old TF1 versions as TF1Old in memory More...

virtual void	Update ()

Public Member Functions inherited from TNamed
	TNamed ()

	TNamed (const char name, const char title)

	TNamed (const TString &name, const TString &title)

	TNamed (const TNamed &named)
	TNamed copy ctor. More...

virtual	~TNamed ()

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

virtual Int_t	Compare (const TObject *obj) const
	Compare two TNamed objects. More...

virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer. More...

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

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

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

virtual Bool_t	IsSortable () const

virtual void	ls (Option_t *option="") const
	List TNamed name and title. More...

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

virtual void	SetName (const char *name)
	Set the name of the TNamed. More...

virtual void	SetNameTitle (const char name, const char title)
	Set all the TNamed parameters (name and title). More...

virtual void	SetTitle (const char *title="")
	Set the title of the TNamed. More...

virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject. More...

Public Member Functions inherited from TObject
	TObject ()
	TObject constructor. More...

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

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

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

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

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

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

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

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

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

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

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad for instance with: `gROOT->SetSelectedPad(gPad)`. More...

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

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

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

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

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

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

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

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

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

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

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

virtual Option_t *	GetOption () const

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

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

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

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

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

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

void	InvertBit (UInt_t f)

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

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

Bool_t	IsOnHeap () const

Bool_t	IsZombie () const

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

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

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

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

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)

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

virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself. More...

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

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

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

void	ResetBit (UInt_t f)

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

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

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

void	SetBit (UInt_t f)

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

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

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

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. More...

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

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

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

Protected Types
enum	{ kIsCharacter = BIT(12), kMissingLeaf = BIT(15), kIsInteger = BIT(17), kNeedEntries = BIT(18) }

enum	{ kDirect, kDataMember, kMethod, kIndexOfEntry, kEntries, kLength, kIteration, kLengthFunc, kSum, kEntryList, kTreeMember, kIndexOfLocalEntry, kMin, kMax, kLocalEntries }

enum	{ kAlias = 200, kAliasString = 201, kAlternate = 202, kAlternateString = 203, kMinIf = 204, kMaxIf = 205 }

Protected Types inherited from ROOT::v5::TFormula
enum	{ kEnd = 0, kAdd = 1, kSubstract = 2, kMultiply = 3, kDivide = 4, kModulo = 5, kcos = 10, ksin = 11, ktan = 12, kacos = 13, kasin = 14, katan = 15, katan2 = 16, kfmod = 17, kpow = 20, ksq = 21, ksqrt = 22, kstrstr = 23, kmin = 24, kmax = 25, klog = 30, kexp = 31, klog10 = 32, kpi = 40, kabs = 41, ksign = 42, kint = 43, kSignInv = 44, krndm = 50, kAnd = 60, kOr = 61, kEqual = 62, kNotEqual = 63, kLess = 64, kGreater = 65, kLessThan = 66, kGreaterThan = 67, kNot = 68, kcosh = 70, ksinh = 71, ktanh = 72, kacosh = 73, kasinh = 74, katanh = 75, kStringEqual = 76, kStringNotEqual = 77, kBitAnd = 78, kBitOr = 79, kLeftShift = 80, kRightShift = 81, kJumpIf = 82, kJump = 83, kexpo = 100, kxexpo = 100, kyexpo = 101, kzexpo = 102, kxyexpo = 105, kgaus = 110, kxgaus = 110, kygaus = 111, kzgaus = 112, kxygaus = 115, klandau = 120, kxlandau = 120, kylandau = 121, kzlandau = 122, kxylandau = 125, kpol = 130, kxpol = 130, kypol = 131, kzpol = 132, kParameter = 140, kConstant = 141, kBoolOptimize = 142, kStringConst = 143, kVariable = 144, kFunctionCall = 145, kData = 146, kUnary = 147, kBinary = 148, kThree = 149, kDefinedVariable = 150, kDefinedString = 151, kPlusD = 152, kPlusDD = 153, kMultD = 154, kMultDD = 155, kBoolOptimizeOr = 156, kBoolOptimizeAnd = 157, kBoolSet = 158, kFDM = 159, kFD0 = 160, kFD1 = 161, kFD2 = 162, kFD3 = 163 }

typedef Double_t(TObject::*	TFuncG) (const Double_t , const Double_t ) const

Protected Member Functions
	TTreeFormula (const char name, const char formula, TTree *tree, const std::vector< std::string > &aliases)
	Cache accelerating the GetRealInstance function. More...

Bool_t	BranchHasMethod (TLeaf leaf, TBranch branch, const char method, const char params, Long64_t readentry) const
	Return the leaf (if any) of the tree with contains an object of a class having a method which has the name provided in the argument. More...

void	Convert (UInt_t fromVersion)

Int_t	DefineAlternate (const char *expression)
	This method check for treat the case where expression contains $Atl and load up both fAliases and fExpr. More...

void	DefineDimensions (Int_t code, Int_t size, TFormLeafInfoMultiVarDim *info, Int_t &virt_dim)
	This method is used internally to decode the dimensions of the variables. More...

virtual TClass *	EvalClass (Int_t oper) const
	Evaluate the class of the operation oper. More...

Int_t	FindLeafForExpression (const char expression, TLeaf &leaf, TString &leftover, Bool_t &final, UInt_t &paran_level, TObjArray &castqueue, std::vector< std::string > &aliasUsed, Bool_t &useLeafCollectionObject, const char *fullExpression)
	Look for the leaf corresponding to the start of expression. More...

TLeaf *	GetLeafWithDatamember (const char topchoice, const char nextchice, Long64_t readentry) const
	Return the leaf (if any) which contains an object containing a data member which has the name provided in the arguments. More...

Int_t	GetRealInstance (Int_t instance, Int_t codeindex)
	Now let calculate what physical instance we really need. More...

virtual Double_t	GetValueFromMethod (Int_t i, TLeaf *leaf) const
	Return result of a leafobject method. More...

virtual void *	GetValuePointerFromMethod (Int_t i, TLeaf *leaf) const
	Return result of a leafobject method. More...

void	Init (const char name, const char formula)
	Initialiation called from the constructors. More...

virtual Bool_t	IsLeafInteger (Int_t code) const
	Return TRUE if the leaf corresponding to code is short, int or unsigned short, int When a leaf is of type integer, the generated histogram is forced to have an integer bin width. More...

virtual Bool_t	IsLeafString (Int_t code) const
	Return TRUE if the leaf or data member corresponding to code is a string. More...

virtual Bool_t	IsString (Int_t oper) const
	Return true if the expression at the index 'oper' is to be treated as as string. More...

void	LoadBranches ()
	Make sure that all the branches have been loaded properly. More...

Bool_t	LoadCurrentDim ()
	Calculate the actual dimension for the current entry. More...

Int_t	ParseWithLeaf (TLeaf leaf, const char expression, Bool_t final, UInt_t paran_level, TObjArray &castqueue, Bool_t useLeafCollectionObject, const char *fullExpression)
	Decompose 'expression' as pointing to something inside the leaf Returns: More...

Int_t	RegisterDimensions (Int_t code, Int_t size, TFormLeafInfoMultiVarDim *multidim=0)
	This method stores the dimension information for later usage. More...

Int_t	RegisterDimensions (Int_t code, TBranchElement *branch)
	This method is used internally to decode the dimensions of the variables. More...

Int_t	RegisterDimensions (Int_t code, TFormLeafInfo info, TFormLeafInfo maininfo, Bool_t useCollectionObject)
	This method is used internally to decode the dimensions of the variables. More...

Int_t	RegisterDimensions (Int_t code, TLeaf *leaf)
	This method is used internally to decode the dimensions of the variables. More...

Int_t	RegisterDimensions (const char *size, Int_t code)
	This method is used internally to decode the dimensions of the variables. More...

void	ResetDimensions ()
	Populate the TTreeFormulaManager with the dimension information. More...

virtual Bool_t	StringToNumber (Int_t code)
	Try to 'demote' a string into an array bytes. More...

virtual Bool_t	SwitchToFormLeafInfo (Int_t code)
	Convert the underlying lookup method from the direct technique (dereferencing the address held by the branch) to the method using TFormLeafInfo. More...

Protected Member Functions inherited from ROOT::v5::TFormula
virtual Bool_t	CheckOperands (Int_t operation, Int_t &err)
	Check whether the operand at 'oper-1' is compatible with the operation at 'oper'. More...

virtual Bool_t	CheckOperands (Int_t leftoperand, Int_t rightoperartion, Int_t &err)
	Check whether the operands at 'leftoper' and 'oper-1' are compatible with the operation at 'oper'. More...

void	ClearFormula (Option_t *option="")
	Resets the objects. More...

Double_t	EvalParFast (const Double_t x, const Double_t params)
	Evaluate this formula. More...

Double_t	EvalPrimitive (const Double_t x, const Double_t params)
	Evaluate primitive formula. More...

Double_t	EvalPrimitive0 (const Double_t x, const Double_t params)
	Evaluate primitive formula. More...

Double_t	EvalPrimitive1 (const Double_t x, const Double_t params)
	Evaluate primitive formula. More...

Double_t	EvalPrimitive2 (const Double_t x, const Double_t params)
	Evaluate primitive formula. More...

Double_t	EvalPrimitive3 (const Double_t x, const Double_t params)
	Evaluate primitive formula. More...

Double_t	EvalPrimitive4 (const Double_t x, const Double_t params)
	Evaluate primitive formula. More...

Short_t	GetAction (Int_t code) const

Short_t	GetActionOptimized (Int_t code) const

Int_t	GetActionParam (Int_t code) const

Int_t	GetActionParamOptimized (Int_t code) const

Int_t *	GetOper () const

Int_t *	GetOperOptimized () const

void	MakePrimitive (const char *expr, Int_t pos)
	MakePrimitive find TFormulaPrimitive replacement for some operands. More...

Int_t	PreCompile ()
	pointer to optimal function More...

void	SetAction (Int_t code, Int_t value, Int_t param=0)

void	SetActionOptimized (Int_t code, Int_t value, Int_t param=0)

Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected). More...

void	MakeZombie ()

Protected Attributes
TObjArray	fAliases
	List of TCutG and TEntryList used in the formula. More...

std::vector< std::string >	fAliasesUsed
	list of dimension setups, for delayed creation of the dimension information. More...

TAxis *	fAxis

TObjArray	fBranches

Int_t	fCodes [kMAXCODES]
	pointer to Tree More...

LongDouble_t *	fConstLD
	List of aliases used during the parsing of the expression. More...

Int_t	fCumulSizes [kMAXCODES][kMAXFORMDIM]

TObjArray	fDataMembers
	List of leaf used in this formula. More...

Bool_t	fDidBooleanOptimization
	pointer to histogram axis if this is a string More...

TList *	fDimensionSetup
	The dimension coordinator. More...

TObjArray	fExternalCuts
	List of leaf method calls. More...

Int_t	fFixedSizes [kMAXCODES][kMAXFORMDIM]

Bool_t	fHasCast

UChar_t	fHasMultipleVarDim [kMAXCODES]

Int_t	fIndexes [kMAXCODES][kMAXFORMDIM]

TObjArray	fLeafNames
	List of TTreeFormula for each alias used. More...

TObjArray	fLeaves

Int_t *	fLookupType

TTreeFormulaManager *	fManager
	True if we executed one boolean optimization since the last time instance number 0 was evaluated. More...

TObjArray	fMethods
	List of leaf data members. More...

Int_t	fMultiplicity

Int_t	fNcodes
	This caches the physical number of element in the leaf or datamember. More...

Int_t	fNdata [kMAXCODES]

Int_t	fNdimensions [kMAXCODES]
	If true, the current entry has not been loaded yet. More...

Bool_t	fNeedLoading
	If true, branch GetEntry is only called when the entry number changes. More...

Int_t	fNindex

Bool_t	fQuickLoad
	List of branches to read. Similar to fLeaces but duplicates are zeroed out. More...

RealInstanceCache	fRealInstanceCache
	local version of fConsts able to store bigger numbers More...

TTree *	fTree

TTreeFormula *	fVarIndexes [kMAXCODES][kMAXFORMDIM]

Protected Attributes inherited from ROOT::v5::TFormula
TBits	fAlreadyFound

Double_t *	fConst

TString *	fExpr

TString *	fExprOptimized
	Number of operators after optimization. More...

TObjArray	fFunctions

TObjArray	fLinearParts

TString *	fNames

Int_t	fNconst

Int_t	fNdim

Int_t	fNoper

Int_t	fNOperOptimized
	cache for information More...

Int_t	fNpar

Int_t	fNstring

Int_t	fNumber

Int_t	fNval

TOperOffset *	fOperOffset
	[fNOperOptimized] List of operators. (See documentation for changes made at version 7) More...

Int_t *	fOperOptimized
	[fNOperOptimized] List of expressions More...

TFuncG	fOptimal
	[fNPar] predefined function More...

Double_t *	fParams

TFormulaPrimitive **	fPredefined
	[fNOperOptimized] Offsets of operrands More...

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

Private Member Functions
	TTreeFormula (const TTreeFormula &)

template<typename T >
T	GetConstant (Int_t k)

TTreeFormula &	operator= (const TTreeFormula &)

Friends
class	TTreeFormulaManager

Additional Inherited Members
Public Types inherited from ROOT::v5::TFormula
enum	{ kNotGlobal = BIT(10), kNormalized = BIT(14), kLinear = BIT(16) }

Public Types inherited from TObject
enum	{ kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff }

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

enum	EStatusBits { kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13) }

Static Public Member Functions inherited from ROOT::v5::TFormula
static void	GetMaxima (Int_t &maxop, Int_t &maxpar, Int_t &maxconst)
	static function to get the maximum value of 3 parameters -maxop : maximum number of operations -maxpar : maximum number of parameters -maxconst : maximum number of constants More...

static void	SetMaxima (Int_t maxop=1000, Int_t maxpar=1000, Int_t maxconst=1000)
	static function to set the maximum value of 3 parameters More...

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

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

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

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

#include <TTreeFormula.h>

Inheritance diagram for TTreeFormula:

[legend]

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

protected

Enumerator
kIsCharacter
kMissingLeaf
kIsInteger
kNeedEntries

Definition at line 63 of file TTreeFormula.h.

◆ anonymous enum

anonymous enum

protected

Enumerator
kDirect
kDataMember
kMethod
kIndexOfEntry
kEntries
kLength
kIteration
kLengthFunc
kSum
kEntryList
kTreeMember
kIndexOfLocalEntry
kMin
kMax
kLocalEntries

Definition at line 69 of file TTreeFormula.h.

◆ anonymous enum

anonymous enum

protected

Enumerator
kAlias
kAliasString
kAlternate
kAlternateString
kMinIf
kMaxIf

Definition at line 78 of file TTreeFormula.h.

Constructor & Destructor Documentation

◆ TTreeFormula() [1/4]

TTreeFormula::TTreeFormula	(	const char *	name,
		const char *	formula,
		TTree *	tree,
		const std::vector< std::string > &	aliases
	)

protected

Cache accelerating the GetRealInstance function.

Constructor used during the expansion of an alias.

Definition at line 168 of file TTreeFormula.cxx.

◆ TTreeFormula() [2/4]

TTreeFormula::TTreeFormula ( const TTreeFormula & )

private

◆ TTreeFormula() [3/4]

TTreeFormula::TTreeFormula ( )

Definition at line 125 of file TTreeFormula.cxx.

◆ TTreeFormula() [4/4]

TTreeFormula::TTreeFormula	(	const char *	name,
		const char *	formula,
		TTree *	tree
	)

Normal TTree Formula Constuctor.

Definition at line 158 of file TTreeFormula.cxx.

◆ ~TTreeFormula()

TTreeFormula::~TTreeFormula ( )

virtual

Tree Formula default destructor.

Definition at line 325 of file TTreeFormula.cxx.

Member Function Documentation

◆ BranchHasMethod()

Bool_t TTreeFormula::BranchHasMethod	(	TLeaf *	leafcur,
		TBranch *	branch,
		const char *	method,
		const char *	params,
		Long64_t	readentry
	)		const

protected

Return the leaf (if any) of the tree with contains an object of a class having a method which has the name provided in the argument.

Definition at line 3219 of file TTreeFormula.cxx.

◆ Convert()

void TTreeFormula::Convert ( UInt_t fromVersion )

protectedvirtual

Reimplemented from ROOT::v5::TFormula.

Definition at line 5595 of file TTreeFormula.cxx.

◆ DefineAlternate()

Int_t TTreeFormula::DefineAlternate ( const char * expression )

protected

This method check for treat the case where expression contains $Atl and load up both fAliases and fExpr.

We return:

-1 in case of failure
0 in case we did not find $Alt
the action number in case of success.

Definition at line 654 of file TTreeFormula.cxx.

◆ DefineDimensions()

void TTreeFormula::DefineDimensions	(	Int_t	code,
		Int_t	size,
		TFormLeafInfoMultiVarDim *	info,
		Int_t &	virt_dim
	)

protected

This method is used internally to decode the dimensions of the variables.

Definition at line 357 of file TTreeFormula.cxx.

◆ DefinedVariable()

Int_t TTreeFormula::DefinedVariable	(	TString &	name,
		Int_t &	action
	)

virtual

Check if name is in the list of Tree/Branch leaves.

This member function redefines the function in ROOT::v5::TFormula If a leaf has a name corresponding to the argument name, then returns a new code.

A TTreeFormula may contain more than one variable. For each variable referenced, the pointers to the corresponding branch and leaf is stored in the object arrays fBranches and fLeaves.

name can be :

Leaf_Name (simple variable or data member of a ClonesArray)
Branch_Name.Leaf_Name
Branch_Name.Method_Name
Leaf_Name[index]
Branch_Name.Leaf_Name[index]
Branch_Name.Leaf_Name[index1]
Branch_Name.Leaf_Name[][index2]
Branch_Name.Leaf_Name[index1][index2]

New additions:

Branch_Name.Leaf_Name[OtherLeaf_Name]
Branch_Name.Datamember_Name
'.' can be replaced by '->'

and
Branch_Name[index1].Leaf_Name[index2]
Leaf_name[index].Action().OtherAction(param)
Leaf_name[index].Action()[val].OtherAction(param)

The expected returns values are

-2 : the name has been recognized but won't be usable
-1 : the name has not been recognized
>=0 : the name has been recognized, return the internal code for this name.

Reimplemented from ROOT::v5::TFormula.

Definition at line 2675 of file TTreeFormula.cxx.

◆ EvalClass() [1/2]

TClass * TTreeFormula::EvalClass ( Int_t oper ) const

protectedvirtual

Evaluate the class of the operation oper.

If the 'value' in the requested operation is a simple pointer to an object, this function returns the TClass corresponding to its type.

Definition at line 3586 of file TTreeFormula.cxx.

◆ EvalClass() [2/2]

TClass * TTreeFormula::EvalClass ( ) const

virtual

Evaluate the class of this treeformula.

If the 'value' of this formula is a simple pointer to an object, this function returns the TClass corresponding to its type.

Definition at line 3573 of file TTreeFormula.cxx.

◆ EvalInstance() [1/2]

template<typename T >

T TTreeFormula::EvalInstance	(	Int_t	i = `0`,
		const char *	stringStack[] = `0`
	)

Evaluate this treeformula.

Definition at line 3935 of file TTreeFormula.cxx.

◆ EvalInstance() [2/2]

virtual Double_t TTreeFormula::EvalInstance	(	Int_t	i = `0`,
		const char *	stringStack[] = `0`
	)

inlinevirtual

Definition at line 181 of file TTreeFormula.h.

◆ EvalInstance64()

virtual Long64_t TTreeFormula::EvalInstance64	(	Int_t	i = `0`,
		const char *	stringStack[] = `0`
	)

inlinevirtual

Definition at line 182 of file TTreeFormula.h.

◆ EvalInstanceLD()

virtual LongDouble_t TTreeFormula::EvalInstanceLD	(	Int_t	i = `0`,
		const char *	stringStack[] = `0`
	)

inlinevirtual

Definition at line 183 of file TTreeFormula.h.

◆ EvalObject()

void * TTreeFormula::EvalObject ( Int_t i = 0 )

virtual

Evaluate this treeformula.

Return the address of the object pointed to by the formula. Return 0 if the formula is not a single object The object type can be retrieved using by call EvalClass();

Definition at line 3635 of file TTreeFormula.cxx.

◆ EvalStringInstance()

const char * TTreeFormula::EvalStringInstance ( Int_t i = 0 )

virtual

Eval the instance as a string.

Definition at line 3686 of file TTreeFormula.cxx.

◆ FindLeafForExpression()

Int_t TTreeFormula::FindLeafForExpression	(	const char *	expression,
		TLeaf *&	leaf,
		TString &	leftover,
		Bool_t &	final,
		UInt_t &	paran_level,
		TObjArray &	castqueue,
		std::vector< std::string > &	aliasUsed,
		Bool_t &	useLeafCollectionObject,
		const char *	fullExpression
	)

protected

Look for the leaf corresponding to the start of expression.

It returns the corresponding leaf if any. It also modify the following arguments:

leftover: contain from expression that was not used to determine the leaf
final:
- paran_level: number of un-matched open parenthesis
- cast_queue: list of cast to be done
- aliases: list of aliases used
Return <0 in case of failure
Return 0 if a leaf has been found
Return 2 if info about the TTree itself has been requested.

Definition at line 2165 of file TTreeFormula.cxx.

◆ GetConstant() [1/3]

template<typename T >

T TTreeFormula::GetConstant ( Int_t k )

inlineprivate

Definition at line 3908 of file TTreeFormula.cxx.

◆ GetConstant() [2/3]

template<>

LongDouble_t TTreeFormula::GetConstant ( Int_t k )

inline

Definition at line 3909 of file TTreeFormula.cxx.

◆ GetConstant() [3/3]

template<>

Long64_t TTreeFormula::GetConstant ( Int_t k )

inline

Definition at line 3929 of file TTreeFormula.cxx.

◆ GetLeaf()

TLeaf * TTreeFormula::GetLeaf ( Int_t n ) const

virtual

Return leaf corresponding to serial number n.

Definition at line 4409 of file TTreeFormula.cxx.

◆ GetLeafInfo()

TFormLeafInfo * TTreeFormula::GetLeafInfo ( Int_t code ) const

Return DataMember corresponding to code.

function called by TLeafObject::GetValue with the value of fLookupType computed in TTreeFormula::DefinedVariable

Definition at line 4400 of file TTreeFormula.cxx.

◆ GetLeafWithDatamember()

TLeaf * TTreeFormula::GetLeafWithDatamember	(	const char *	topchoice,
		const char *	nextchoice,
		Long64_t	readentry
	)		const

protected

Return the leaf (if any) which contains an object containing a data member which has the name provided in the arguments.

Definition at line 3053 of file TTreeFormula.cxx.

◆ GetManager()

TTreeFormulaManager* TTreeFormula::GetManager ( ) const

inline

Definition at line 189 of file TTreeFormula.h.

◆ GetMethodCall()

TMethodCall * TTreeFormula::GetMethodCall ( Int_t code ) const

Return methodcall corresponding to code.

function called by TLeafObject::GetValue with the value of fLookupType computed in TTreeFormula::DefinedVariable

Definition at line 4420 of file TTreeFormula.cxx.

◆ GetMultiplicity()

virtual Int_t TTreeFormula::GetMultiplicity ( ) const

inlinevirtual

Definition at line 191 of file TTreeFormula.h.

◆ GetNcodes()

virtual Int_t TTreeFormula::GetNcodes ( ) const

inlinevirtual

Definition at line 193 of file TTreeFormula.h.

◆ GetNdata()

Int_t TTreeFormula::GetNdata ( )

virtual

Return number of available instances in the formula.

Definition at line 4429 of file TTreeFormula.cxx.

◆ GetRealInstance()

Int_t TTreeFormula::GetRealInstance	(	Int_t	instance,
		Int_t	codeindex
	)

protected

Now let calculate what physical instance we really need.

Some redundant code is used to speed up the cases where they are no dimensions.

We know that instance is less that fCumulUsedSize[0] so we can skip the modulo when virt_dim is 0.

Definition at line 3338 of file TTreeFormula.cxx.

◆ GetTree()

virtual TTree* TTreeFormula::GetTree ( ) const

inlinevirtual

Definition at line 210 of file TTreeFormula.h.

◆ GetValueFromMethod()

Double_t TTreeFormula::GetValueFromMethod	(	Int_t	i,
		TLeaf *	leaf
	)		const

protectedvirtual

Return result of a leafobject method.

Definition at line 4437 of file TTreeFormula.cxx.

◆ GetValuePointerFromMethod()

void * TTreeFormula::GetValuePointerFromMethod	(	Int_t	i,
		TLeaf *	leaf
	)		const

protectedvirtual

Return result of a leafobject method.

Definition at line 4498 of file TTreeFormula.cxx.

◆ Init()

void TTreeFormula::Init	(	const char *	name,
		const char *	formula
	)

protected

Initialiation called from the constructors.

Definition at line 179 of file TTreeFormula.cxx.

◆ IsInteger()

Bool_t TTreeFormula::IsInteger ( Bool_t fast = kTRUE ) const

virtual

Return TRUE if the formula corresponds to one single Tree leaf and this leaf is short, int or unsigned short, int When a leaf is of type integer or string, the generated histogram is forced to have an integer bin width.

Definition at line 4567 of file TTreeFormula.cxx.

◆ IsLeafInteger()

Bool_t TTreeFormula::IsLeafInteger ( Int_t code ) const

protectedvirtual

Return TRUE if the leaf corresponding to code is short, int or unsigned short, int When a leaf is of type integer, the generated histogram is forced to have an integer bin width.

Definition at line 4622 of file TTreeFormula.cxx.

◆ IsLeafString()

Bool_t TTreeFormula::IsLeafString ( Int_t code ) const

protectedvirtual

Return TRUE if the leaf or data member corresponding to code is a string.

Definition at line 4692 of file TTreeFormula.cxx.

◆ IsQuickLoad()

Bool_t TTreeFormula::IsQuickLoad ( ) const

inline

Definition at line 201 of file TTreeFormula.h.

◆ IsString() [1/2]

Bool_t TTreeFormula::IsString ( Int_t oper ) const

protectedvirtual

Return true if the expression at the index 'oper' is to be treated as as string.

Reimplemented from ROOT::v5::TFormula.

Definition at line 4680 of file TTreeFormula.cxx.

◆ IsString() [2/2]

Bool_t TTreeFormula::IsString ( ) const

virtual

Return TRUE if the formula is a string.

Definition at line 4670 of file TTreeFormula.cxx.

◆ LoadBranches()

void TTreeFormula::LoadBranches ( )

protected

Make sure that all the branches have been loaded properly.

Definition at line 5303 of file TTreeFormula.cxx.

◆ LoadCurrentDim()

Bool_t TTreeFormula::LoadCurrentDim ( )

protected

Calculate the actual dimension for the current entry.

Definition at line 5327 of file TTreeFormula.cxx.

◆ Notify()

virtual Bool_t TTreeFormula::Notify ( )

inlinevirtual

This method must be overridden to handle object notification.

Reimplemented from TObject.

Definition at line 203 of file TTreeFormula.h.

◆ operator=()

TTreeFormula& TTreeFormula::operator= ( const TTreeFormula & )

private

◆ ParseWithLeaf()

Int_t TTreeFormula::ParseWithLeaf	(	TLeaf *	leaf,
		const char *	subExpression,
		Bool_t	final,
		UInt_t	paran_level,
		TObjArray &	castqueue,
		Bool_t	useLeafCollectionObject,
		const char *	fullExpression
	)

protected

Decompose 'expression' as pointing to something inside the leaf Returns:

-2 Error: some information is missing (message already printed)
-1 Error: Syntax is incorrect (message already printed)
0
>0 the value returns is the action code.

Definition at line 761 of file TTreeFormula.cxx.

◆ PrintValue() [1/2]

char * TTreeFormula::PrintValue ( Int_t mode = 0 ) const

virtual

Return value of variable as a string.

mode = -2 : Print line with ***
mode = -1 : Print column names
mode = 0 : Print column values

Definition at line 4770 of file TTreeFormula.cxx.

◆ PrintValue() [2/2]

char * TTreeFormula::PrintValue	(	Int_t	mode,
		Int_t	instance,
		const char *	decform = `"9.9"`
	)		const

virtual

Return value of variable as a string.

mode = -2 : Print line with ***
mode = -1 : Print column names
mode = 0 : Print column values

decform contains the requested format (with the same convention as printf).

Definition at line 4784 of file TTreeFormula.cxx.

◆ RegisterDimensions() [1/5]

Int_t TTreeFormula::RegisterDimensions	(	Int_t	code,
		Int_t	size,
		TFormLeafInfoMultiVarDim *	multidim = `0`
	)

protected

This method stores the dimension information for later usage.

Definition at line 436 of file TTreeFormula.cxx.

◆ RegisterDimensions() [2/5]

Int_t TTreeFormula::RegisterDimensions	(	Int_t	code,
		TBranchElement *	branch
	)

protected

This method is used internally to decode the dimensions of the variables.

Definition at line 552 of file TTreeFormula.cxx.

◆ RegisterDimensions() [3/5]

Int_t TTreeFormula::RegisterDimensions	(	Int_t	code,
		TFormLeafInfo *	info,
		TFormLeafInfo *	maininfo,
		Bool_t	useCollectionObject
	)

protected

This method is used internally to decode the dimensions of the variables.

Definition at line 447 of file TTreeFormula.cxx.

◆ RegisterDimensions() [4/5]

Int_t TTreeFormula::RegisterDimensions	(	Int_t	code,
		TLeaf *	leaf
	)

protected

This method is used internally to decode the dimensions of the variables.

Definition at line 580 of file TTreeFormula.cxx.

◆ RegisterDimensions() [5/5]

Int_t TTreeFormula::RegisterDimensions	(	const char *	size,
		Int_t	code
	)

protected

This method is used internally to decode the dimensions of the variables.

Definition at line 399 of file TTreeFormula.cxx.

◆ ResetDimensions()

void TTreeFormula::ResetDimensions ( )

protected

Populate the TTreeFormulaManager with the dimension information.

Definition at line 5121 of file TTreeFormula.cxx.

◆ ResetLoading()

void TTreeFormula::ResetLoading ( )

virtual

Tell the formula that we are going to request a new entry.

Definition at line 4925 of file TTreeFormula.cxx.

◆ SetAxis()

void TTreeFormula::SetAxis ( TAxis * axis = 0 )

virtual

Set the axis (in particular get the type).

Definition at line 4953 of file TTreeFormula.cxx.

◆ SetQuickLoad()

void TTreeFormula::SetQuickLoad ( Bool_t quick )

inline

Definition at line 207 of file TTreeFormula.h.

◆ SetTree()

virtual void TTreeFormula::SetTree ( TTree * tree )

inlinevirtual

Definition at line 208 of file TTreeFormula.h.

◆ StringToNumber()

Bool_t TTreeFormula::StringToNumber ( Int_t oper )

protectedvirtual

Try to 'demote' a string into an array bytes.

If this is not possible, return false.

Reimplemented from ROOT::v5::TFormula.

Definition at line 5012 of file TTreeFormula.cxx.

◆ SwitchToFormLeafInfo()

Bool_t TTreeFormula::SwitchToFormLeafInfo ( Int_t code )

protectedvirtual

Convert the underlying lookup method from the direct technique (dereferencing the address held by the branch) to the method using TFormLeafInfo.

This is in particular usefull in the case where we need to append an additional TFormLeafInfo (for example to call a method). Return false if the switch was unsuccessfull (basically in the case of an old style split tree).

Definition at line 5643 of file TTreeFormula.cxx.

◆ UpdateFormulaLeaves()

void TTreeFormula::UpdateFormulaLeaves ( )

virtual

This function is called TTreePlayer::UpdateFormulaLeaves, itself called by TChain::LoadTree when a new Tree is loaded.

Because Trees in a TChain may have a different list of leaves, one must update the leaves numbers in the TTreeFormula used by the TreePlayer.

A safer alternative would be to recompile the whole thing .... However currently compile HAS TO be called from the constructor!

Definition at line 5041 of file TTreeFormula.cxx.

Friends And Related Function Documentation

◆ TTreeFormulaManager

friend class TTreeFormulaManager

friend

Definition at line 60 of file TTreeFormula.h.

Member Data Documentation

◆ fAliases

TObjArray TTreeFormula::fAliases

protected

List of TCutG and TEntryList used in the formula.

Definition at line 107 of file TTreeFormula.h.

◆ fAliasesUsed

std::vector<std::string> TTreeFormula::fAliasesUsed

protected

list of dimension setups, for delayed creation of the dimension information.

Definition at line 128 of file TTreeFormula.h.

◆ fAxis

TAxis* TTreeFormula::fAxis

protected

Definition at line 122 of file TTreeFormula.h.

◆ fBranches

TObjArray TTreeFormula::fBranches

protected

Definition at line 109 of file TTreeFormula.h.

◆ fCodes

Int_t TTreeFormula::fCodes[kMAXCODES]

protected

pointer to Tree

Definition at line 96 of file TTreeFormula.h.

◆ fConstLD

LongDouble_t* TTreeFormula::fConstLD

protected

List of aliases used during the parsing of the expression.

Definition at line 130 of file TTreeFormula.h.

◆ fCumulSizes

Int_t TTreeFormula::fCumulSizes[kMAXCODES][kMAXFORMDIM]

protected

Definition at line 118 of file TTreeFormula.h.

◆ fDataMembers

TObjArray TTreeFormula::fDataMembers

protected

List of leaf used in this formula.

Definition at line 104 of file TTreeFormula.h.

◆ fDidBooleanOptimization

Bool_t TTreeFormula::fDidBooleanOptimization

protected

pointer to histogram axis if this is a string

Definition at line 123 of file TTreeFormula.h.

◆ fDimensionSetup

TList* TTreeFormula::fDimensionSetup

protected

The dimension coordinator.

Definition at line 127 of file TTreeFormula.h.

◆ fExternalCuts

TObjArray TTreeFormula::fExternalCuts

protected

List of leaf method calls.

Definition at line 106 of file TTreeFormula.h.

◆ fFixedSizes

Int_t TTreeFormula::fFixedSizes[kMAXCODES][kMAXFORMDIM]

protected

Definition at line 114 of file TTreeFormula.h.

◆ fHasCast

Bool_t TTreeFormula::fHasCast

protected

Definition at line 99 of file TTreeFormula.h.

◆ fHasMultipleVarDim

UChar_t TTreeFormula::fHasMultipleVarDim[kMAXCODES]

protected

Definition at line 115 of file TTreeFormula.h.

◆ fIndexes

Int_t TTreeFormula::fIndexes[kMAXCODES][kMAXFORMDIM]

protected

Definition at line 119 of file TTreeFormula.h.

◆ fLeafNames

TObjArray TTreeFormula::fLeafNames

protected

List of TTreeFormula for each alias used.

Definition at line 108 of file TTreeFormula.h.

◆ fLeaves

TObjArray TTreeFormula::fLeaves

protected

Definition at line 103 of file TTreeFormula.h.

◆ fLookupType

Int_t* TTreeFormula::fLookupType

protected

Definition at line 102 of file TTreeFormula.h.

◆ fManager

TTreeFormulaManager* TTreeFormula::fManager

protected

True if we executed one boolean optimization since the last time instance number 0 was evaluated.

Definition at line 124 of file TTreeFormula.h.

◆ fMethods

TObjArray TTreeFormula::fMethods

protected

List of leaf data members.

Definition at line 105 of file TTreeFormula.h.

◆ fMultiplicity

Int_t TTreeFormula::fMultiplicity

protected

Definition at line 100 of file TTreeFormula.h.

◆ fNcodes

Int_t TTreeFormula::fNcodes

protected

This caches the physical number of element in the leaf or datamember.

Definition at line 98 of file TTreeFormula.h.

◆ fNdata

Int_t TTreeFormula::fNdata[kMAXCODES]

protected

Definition at line 97 of file TTreeFormula.h.

◆ fNdimensions

Int_t TTreeFormula::fNdimensions[kMAXCODES]

protected

If true, the current entry has not been loaded yet.

Definition at line 113 of file TTreeFormula.h.

◆ fNeedLoading

Bool_t TTreeFormula::fNeedLoading

protected

If true, branch GetEntry is only called when the entry number changes.

Definition at line 111 of file TTreeFormula.h.

◆ fNindex

Int_t TTreeFormula::fNindex

protected

Definition at line 101 of file TTreeFormula.h.

◆ fQuickLoad

Bool_t TTreeFormula::fQuickLoad

protected

List of branches to read. Similar to fLeaces but duplicates are zeroed out.

Definition at line 110 of file TTreeFormula.h.

◆ fRealInstanceCache

RealInstanceCache TTreeFormula::fRealInstanceCache

protected

local version of fConsts able to store bigger numbers

Definition at line 132 of file TTreeFormula.h.

◆ fTree

TTree* TTreeFormula::fTree

protected

Definition at line 95 of file TTreeFormula.h.

◆ fVarIndexes

TTreeFormula* TTreeFormula::fVarIndexes[kMAXCODES][kMAXFORMDIM]

protected

Definition at line 120 of file TTreeFormula.h.

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

tree/treeplayer/inc/TTreeFormula.h
tree/treeplayer/src/TTreeFormula.cxx

Classes

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Private Member Functions

Friends

Additional Inherited Members

Member Enumeration Documentation

◆ anonymous enum

◆ anonymous enum

◆ anonymous enum

Constructor & Destructor Documentation

◆ TTreeFormula() [1/4]

◆ TTreeFormula() [2/4]

◆ TTreeFormula() [3/4]

◆ TTreeFormula() [4/4]

◆ ~TTreeFormula()

Member Function Documentation

◆ BranchHasMethod()

◆ Convert()

◆ DefineAlternate()

◆ DefineDimensions()

◆ DefinedVariable()

◆ EvalClass() [1/2]

◆ EvalClass() [2/2]

◆ EvalInstance() [1/2]

◆ EvalInstance() [2/2]

◆ EvalInstance64()

◆ EvalInstanceLD()

◆ EvalObject()

◆ EvalStringInstance()

◆ FindLeafForExpression()

◆ GetConstant() [1/3]

◆ GetConstant() [2/3]

◆ GetConstant() [3/3]

◆ GetLeaf()

◆ GetLeafInfo()

◆ GetLeafWithDatamember()

◆ GetManager()

◆ GetMethodCall()

◆ GetMultiplicity()

◆ GetNcodes()

◆ GetNdata()

◆ GetRealInstance()

◆ GetTree()

◆ GetValueFromMethod()

◆ GetValuePointerFromMethod()

◆ Init()

◆ IsInteger()

◆ IsLeafInteger()

◆ IsLeafString()

◆ IsQuickLoad()

◆ IsString() [1/2]

◆ IsString() [2/2]

◆ LoadBranches()

◆ LoadCurrentDim()

◆ Notify()

◆ operator=()

◆ ParseWithLeaf()

◆ PrintValue() [1/2]

◆ PrintValue() [2/2]

◆ RegisterDimensions() [1/5]

◆ RegisterDimensions() [2/5]

◆ RegisterDimensions() [3/5]

◆ RegisterDimensions() [4/5]

◆ RegisterDimensions() [5/5]

◆ ResetDimensions()

◆ ResetLoading()

◆ SetAxis()

◆ SetQuickLoad()

◆ SetTree()

◆ StringToNumber()

◆ SwitchToFormLeafInfo()

◆ UpdateFormulaLeaves()

Friends And Related Function Documentation

◆ TTreeFormulaManager

Member Data Documentation

◆ fAliases

◆ fAliasesUsed