/usr/include/root/RooSegmentedIntegrator1D.h is in libroot-roofit-dev 5.34.30-0ubuntu8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Project: RooFit *
* Package: RooFitCore *
* File: $Id: RooSegmentedIntegrator1D.h,v 1.7 2007/05/11 09:11:30 verkerke Exp $
* Authors: *
* WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu *
* DK, David Kirkby, UC Irvine, dkirkby@uci.edu *
* *
* Copyright (c) 2000-2005, Regents of the University of California *
* and Stanford University. All rights reserved. *
* *
* Redistribution and use in source and binary forms, *
* with or without modification, are permitted according to the terms *
* listed in LICENSE (http://roofit.sourceforge.net/license.txt) *
*****************************************************************************/
#ifndef ROO_SEGMENTED_INTEGRATOR_1D
#define ROO_SEGMENTED_INTEGRATOR_1D
#include "RooAbsIntegrator.h"
#include "RooIntegrator1D.h"
#include "RooNumIntConfig.h"
class RooSegmentedIntegrator1D : public RooAbsIntegrator {
public:
// Constructors, assignment etc
RooSegmentedIntegrator1D() ;
RooSegmentedIntegrator1D(const RooAbsFunc& function, const RooNumIntConfig& config) ;
RooSegmentedIntegrator1D(const RooAbsFunc& function, Double_t xmin, Double_t xmax, const RooNumIntConfig& config) ;
virtual RooAbsIntegrator* clone(const RooAbsFunc& function, const RooNumIntConfig& config) const ;
virtual ~RooSegmentedIntegrator1D();
virtual Bool_t checkLimits() const;
virtual Double_t integral(const Double_t *yvec=0) ;
using RooAbsIntegrator::setLimits ;
Bool_t setLimits(Double_t *xmin, Double_t *xmax);
virtual Bool_t setUseIntegrandLimits(Bool_t flag) { _useIntegrandLimits = flag ; return kTRUE ; }
virtual Bool_t canIntegrate1D() const { return kTRUE ; }
virtual Bool_t canIntegrate2D() const { return kFALSE ; }
virtual Bool_t canIntegrateND() const { return kFALSE ; }
virtual Bool_t canIntegrateOpenEnded() const { return kFALSE ; }
protected:
friend class RooNumIntFactory ;
static void registerIntegrator(RooNumIntFactory& fact) ;
mutable Double_t _xmin ;
mutable Double_t _xmax ;
mutable Double_t _range ;
Bool_t _valid ;
Int_t _nseg ; // Number of segments
Bool_t _useIntegrandLimits ;
RooNumIntConfig _config ;
RooIntegrator1D** _array ; // Array of segment integrators
Bool_t initialize();
ClassDef(RooSegmentedIntegrator1D,0) // 1-dimensional piece-wise numerical integration engine
};
#endif
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