    /*****************************************************************************
     * Project: RooFit                                                           *
     * Package: RooFitCore                                                       *
     *    File: $Id: RooRealAnalytic.cc,v 1.14 2005/06/16 09:31:30 wverkerke 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)             *
     *****************************************************************************/

    // -- CLASS DESCRIPTION [AUX] --
    // Lightweight interface adaptor that binds an analytic integral of a
    // RooAbsReal object (specified by a code) to a set of dependent variables.

    #include "RooFit.h"

    #include "RooRealAnalytic.h"
    #include "RooRealAnalytic.h"
    #include "RooAbsReal.h"

    #include <assert.h>

    ClassImp(RooRealAnalytic)
    ;

    Double_t RooRealAnalytic::operator()(const Double_t xvector[]) const {
      // Evaluate our analytic integral at the specified values of the dependents.
      assert(isValid());
      loadValues(xvector);
      _ncall++ ;
      return _code?_func->analyticalIntegralWN(_code,_nset,_rangeName?_rangeName->GetName():0):_func->getVal(_nset) ;
    }