    /*****************************************************************************
     * Project: RooFit                                                           *
     * Package: RooFitCore                                                       *
     *    File: $Id: RooConstVar.cc,v 1.11 2005/06/20 15:44:50 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 [REAL] --
    // RooConstVar represent a constant real-valued object

    #include "RooFit.h"

    #include "RooConstVar.h"
    #include "RooConstVar.h"

    ClassImp(RooConstVar)
      ;

     RooConstVar::RooConstVar(const char *name, const char *title, Double_t value) :
      RooAbsReal(name,title), _value(value)
    {
      setAttribute("Constant",kTRUE) ;
    }

     RooConstVar::RooConstVar(const RooConstVar& other, const char* name) :
      RooAbsReal(other, name), _value(other._value)
    {
      // Copy constructor
    }

     RooConstVar::~RooConstVar()
    {
    }

     Double_t RooConstVar::getVal(const RooArgSet*) const
    {
      return _value ;
    }

     void RooConstVar::writeToStream(ostream& os, Bool_t /*compact*/) const
    {
      // Write object contents to stream
      os << _value ;
    }