include/root/RooRealConstant.h

0001 /*****************************************************************************
0002  * Project: RooFit                                                           *
0003  * Package: RooFitCore                                                       *
0004  *    File: $Id: RooRealConstant.h,v 1.13 2007/05/11 09:11:30 verkerke Exp $
0005  * Authors:                                                                  *
0006  *   WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu       *
0007  *   DK, David Kirkby,    UC Irvine,         dkirkby@uci.edu                 *
0008  *                                                                           *
0009  * Copyright (c) 2000-2005, Regents of the University of California          *
0010  *                          and Stanford University. All rights reserved.    *
0011  *                                                                           *
0012  * Redistribution and use in source and binary forms,                        *
0013  * with or without modification, are permitted according to the terms        *
0014  * listed in LICENSE (http://roofit.sourceforge.net/license.txt)             *
0015  *****************************************************************************/
0016 #ifndef ROO_REAL_CONSTANT
0017 #define ROO_REAL_CONSTANT
0018
0019 #include "Rtypes.h"
0020
0021 class RooAbsReal ;
0022 class RooArgList ;
0023 #include "RooConstVar.h"
0024
0025 class RooRealConstant {
0026 public:
0027
0028   inline RooRealConstant() {} ;
0029   virtual ~RooRealConstant() {} ;
0030   static RooConstVar& value(double value) ;
0031
0032   static RooConstVar& removalDummy() ;
0033
0034 protected:
0035
0036   static RooArgList& constDB();
0037
0038   ClassDef(RooRealConstant,0) // RooRealVar constants factory
0039 };
0040
0041
0042 #endif