RooNumber Class Reference

Class RooNumber implements numeric constants used by RooFit.

Definition at line 22 of file RooNumber.h.

Static Public Member Functions
static constexpr double	infinity ()
	Return internal infinity representation.
static constexpr int	isInfinite (double x)
	Return true if x is infinite by RooNumber internal specification.
static double	rangeEpsAbs ()
	Get the absolute epsilon that is used by range checks in RooFit, e.g., in RooAbsRealLValue::inRange().
static double	rangeEpsRel ()
	Get the relative epsilon that is used by range checks in RooFit, e.g., in RooAbsRealLValue::inRange().
static void	setRangeEpsAbs (double epsRel)
	Set the absolute epsilon that is used by range checks in RooFit, e.g., in RooAbsRealLValue::inRange().
static void	setRangeEpsRel (double epsRel)
	Set the relative epsilon that is used by range checks in RooFit, e.g., in RooAbsRealLValue::inRange().
static std::string	toString (double x)
	Returns an std::to_string compatible number (i.e.

Static Private Member Functions
static double &	staticRangeEpsAbs ()
static double &	staticRangeEpsRel ()

#include <RooNumber.h>

Member Function Documentation

infinity()

static constexpr double RooNumber::infinity ( )

inlinestaticconstexpr

Return internal infinity representation.

Definition at line 25 of file RooNumber.h.

isInfinite()

static constexpr int RooNumber::isInfinite ( double  x )

inlinestaticconstexpr

Return true if x is infinite by RooNumber internal specification.

Definition at line 27 of file RooNumber.h.

rangeEpsAbs()

static double RooNumber::rangeEpsAbs ( )

inlinestatic

Get the absolute epsilon that is used by range checks in RooFit, e.g., in RooAbsRealLValue::inRange().

Definition at line 41 of file RooNumber.h.

rangeEpsRel()

static double RooNumber::rangeEpsRel ( )

inlinestatic

Get the relative epsilon that is used by range checks in RooFit, e.g., in RooAbsRealLValue::inRange().

Definition at line 34 of file RooNumber.h.

setRangeEpsAbs()

static void RooNumber::setRangeEpsAbs ( double  epsRel )

inlinestatic

Set the absolute epsilon that is used by range checks in RooFit, e.g., in RooAbsRealLValue::inRange().

Definition at line 38 of file RooNumber.h.

setRangeEpsRel()

static void RooNumber::setRangeEpsRel ( double  epsRel )

inlinestatic

Set the relative epsilon that is used by range checks in RooFit, e.g., in RooAbsRealLValue::inRange().

Definition at line 31 of file RooNumber.h.

staticRangeEpsAbs()

double & RooNumber::staticRangeEpsAbs ( )

staticprivate

Definition at line 46 of file RooNumber.cxx.

staticRangeEpsRel()

double & RooNumber::staticRangeEpsRel ( )

staticprivate

Definition at line 40 of file RooNumber.cxx.

toString()

std::string RooNumber::toString ( double  x )

static

Returns an std::to_string compatible number (i.e.

rounds infinities back to the nearest representable value). This function is primarily used in the code-squashing for AD and as such encodes infinities to double's maximum value. We do this because 1, std::to_string cannot handle infinities correctly on some platforms (e.g. 32 bit debian) and 2, Clad (the AD tool) cannot handle differentiating std::numeric_limits::infinity directly.

Definition at line 31 of file RooNumber.cxx.

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

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