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TTreeFormula.cxx File Reference

Classes

class  TDimensionInfo
 A small helper class to help in keeping track of the array dimensions encountered in the analysis of the expression. More...

Macros

#define TREE_EVAL_INIT
#define TREE_EVAL_INIT_LOOP
#define TT_EVAL_INIT
#define TT_EVAL_INIT_LOOP

Functions

template<typename T>
T FindMax (TTreeFormula *arr)
template<typename T>
T FindMax (TTreeFormula *arr, TTreeFormula *condition)
template<typename T>
T FindMin (TTreeFormula *arr)
template<typename T>
T FindMin (TTreeFormula *arr, TTreeFormula *condition)
bool IsNumberConstant (const std::string &str)
 Helper function checking if a string contains a literal number.
static Int_t R__LoadBranch (TBranch *br, Long64_t entry, bool quickLoad)
 The function returns the number of bytes read from the input buffer.
template<typename T>
T Summing (TTreeFormula *sum)

Variables

const Int_t kMaxLen = 2048

Macro Definition Documentation

◆ TREE_EVAL_INIT

#define TREE_EVAL_INIT
Value:
const Int_t real_instance = GetRealInstance(instance,0); \
\
if (real_instance>=fNdata[0]) return TMath::SignalingNaN(); \
\
if (fAxis) { \
char * label; \
/* This portion is a duplicate (for speed reason) of the code \
located in the main for loop at "a tree string" (and in EvalStringInstance) */ \
label = (char*)GetLeafInfo(0)->GetValuePointer((TLeaf*)0x0,instance); \
Int_t bin = fAxis->FindBin(label); \
return bin-0.5; \
}
instance
static Roo_reg_AGKInteg1D instance
Definition RooAdaptiveGaussKronrodIntegrator1D.cxx:151
Int_t
int Int_t
Signed integer 4 bytes (int).
Definition RtypesCore.h:59
TLeaf
A TLeaf describes individual elements of a TBranch See TBranch structure in TTree.
Definition TLeaf.h:57
TMath::SignalingNaN
Double_t SignalingNaN()
Returns a signaling NaN as defined by IEEE 754](http://en.wikipedia.org/wiki/NaN#Signaling_NaN).
Definition TMath.h:921

Definition at line 3856 of file TTreeFormula.cxx.

◆ TREE_EVAL_INIT_LOOP

#define TREE_EVAL_INIT_LOOP
Value:
/* Now let calculate what physical instance we really need. */ \
const Int_t real_instance = GetRealInstance(instance,code); \
\
if (real_instance>=fNdata[code]) return TMath::SignalingNaN();

Definition at line 3914 of file TTreeFormula.cxx.

◆ TT_EVAL_INIT

#define TT_EVAL_INIT

Definition at line 3819 of file TTreeFormula.cxx.

◆ TT_EVAL_INIT_LOOP

#define TT_EVAL_INIT_LOOP

Definition at line 3869 of file TTreeFormula.cxx.

Function Documentation

◆ FindMax() [1/2]

template<typename T>
T FindMax ( TTreeFormula * arr)

Definition at line 3943 of file TTreeFormula.cxx.

◆ FindMax() [2/2]

template<typename T>
T FindMax ( TTreeFormula * arr,
TTreeFormula * condition )

Definition at line 3990 of file TTreeFormula.cxx.

◆ FindMin() [1/2]

template<typename T>
T FindMin ( TTreeFormula * arr)

Definition at line 3928 of file TTreeFormula.cxx.

◆ FindMin() [2/2]

template<typename T>
T FindMin ( TTreeFormula * arr,
TTreeFormula * condition )

Definition at line 3958 of file TTreeFormula.cxx.

◆ IsNumberConstant()

bool IsNumberConstant ( const std::string & str)

Helper function checking if a string contains a literal number.

Whitespaces are not allowed as part of a valid number-string

Returns
true if it can be converted to a valid number (floating or integer), false otherwise.

Definition at line 117 of file TTreeFormula.cxx.

◆ R__LoadBranch()

Int_t R__LoadBranch ( TBranch * br,
Long64_t entry,
bool quickLoad )
inlinestaticnodiscard

The function returns the number of bytes read from the input buffer.

If entry does not exist or (entry!=readEntry && quickload), the function returns 0. If an I/O error occurs, the function returns -1.

Definition at line 102 of file TTreeFormula.cxx.

◆ Summing()

template<typename T>
T Summing ( TTreeFormula * sum)

Definition at line 3921 of file TTreeFormula.cxx.

Variable Documentation

◆ kMaxLen

const Int_t kMaxLen = 2048

Definition at line 56 of file TTreeFormula.cxx.