RooRealConstant Class Reference

RooRealConstant provides static functions to create and keep track of RooRealVar constants.

Instead of creating such constants by hand (e.g. RooRealVar one("one","one",1)), simply use

RooRealConstant::value(1.0)

whenever a reference to RooRealVar with constant value 1.0 is needed. RooRealConstant keeps an internal database of previously created RooRealVar objects and will recycle them as appropriate.

Definition at line 25 of file RooRealConstant.h.

Public Member Functions
	RooRealConstant ()
virtual	~RooRealConstant ()

Static Public Member Functions
static RooConstVar &	removalDummy ()
	Create a dummy node used in node-removal operations.
static RooConstVar &	value (Double_t value)
	Return a constant value object with given value.

Static Protected Member Functions
static RooArgList &	constDB ()
	One-time initialization of constants database.

#include <RooRealConstant.h>

Constructor & Destructor Documentation

RooRealConstant()

RooRealConstant::RooRealConstant ( )

inline

Definition at line 28 of file RooRealConstant.h.

~RooRealConstant()

virtual RooRealConstant::~RooRealConstant ( )

inlinevirtual

Definition at line 29 of file RooRealConstant.h.

Member Function Documentation

constDB()

RooArgList & RooRealConstant::constDB ( )

staticprotected

One-time initialization of constants database.

Definition at line 90 of file RooRealConstant.cxx.

removalDummy()

RooConstVar & RooRealConstant::removalDummy ( )

static

Create a dummy node used in node-removal operations.

Definition at line 75 of file RooRealConstant.cxx.

value()

RooConstVar & RooRealConstant::value ( Double_t  value )

static

Return a constant value object with given value.

Return previously created object if available, otherwise create a new one on the fly.

Definition at line 52 of file RooRealConstant.cxx.

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

• roofit/roofitcore/inc/RooRealConstant.h
• roofit/roofitcore/src/RooRealConstant.cxx