00001 /***************************************************************************** 00002 * Project: RooFit * 00003 * Package: RooFitCore * 00004 * @(#)root/roofitcore:$Id: RooConstVar.cxx 24269 2008-06-13 15:37:03Z wouter $ 00005 * Authors: * 00006 * WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu * 00007 * DK, David Kirkby, UC Irvine, dkirkby@uci.edu * 00008 * * 00009 * Copyright (c) 2000-2005, Regents of the University of California * 00010 * and Stanford University. All rights reserved. * 00011 * * 00012 * Redistribution and use in source and binary forms, * 00013 * with or without modification, are permitted according to the terms * 00014 * listed in LICENSE (http://roofit.sourceforge.net/license.txt) * 00015 *****************************************************************************/ 00016 00017 ////////////////////////////////////////////////////////////////////////////// 00018 // 00019 // BEGIN_HTML 00020 // RooConstVar represent a constant real-valued object 00021 // END_HTML 00022 // 00023 00024 00025 #include "RooFit.h" 00026 00027 #include "Riostream.h" 00028 #include "RooConstVar.h" 00029 00030 ClassImp(RooConstVar) 00031 ; 00032 00033 00034 00035 //_____________________________________________________________________________ 00036 RooConstVar::RooConstVar(const char *name, const char *title, Double_t value) : 00037 RooAbsReal(name,title), _value(value) 00038 { 00039 // Constructor with value 00040 00041 setAttribute("Constant",kTRUE) ; 00042 } 00043 00044 00045 00046 //_____________________________________________________________________________ 00047 RooConstVar::RooConstVar(const RooConstVar& other, const char* name) : 00048 RooAbsReal(other, name), _value(other._value) 00049 { 00050 00051 // Copy constructor 00052 } 00053 00054 00055 00056 //_____________________________________________________________________________ 00057 RooConstVar::~RooConstVar() 00058 { 00059 // Destructor 00060 } 00061 00062 00063 00064 //_____________________________________________________________________________ 00065 Double_t RooConstVar::getVal(const RooArgSet*) const 00066 { 00067 // Return value 00068 return _value ; 00069 } 00070 00071 00072 00073 //_____________________________________________________________________________ 00074 void RooConstVar::writeToStream(ostream& os, Bool_t /*compact*/) const 00075 { 00076 // Write object contents to stream 00077 os << _value ; 00078 } 00079
1.5.1