TRD/AliTRDarrayF.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
   7  * Permission to use, copy, modify and distribute this software and its   *
   8  * documentation strictly for non-commercial purposes is hereby granted   *
   9  * without fee, provided that the above copyright notice appears in all   *
  10  * copies and that both the copyright notice and this permission notice   *
  11  * appear in the supporting documentation. The authors make no claims     *
  12  * about the suitability of this software for any purpose. It is          *
  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16 /* $Id$ */
  17
  18 ///////////////////////////////////////////////////////////////////////
  19 //                                                                   //
  20 // Added additional functionality to the original TArrayF.           //
  21 //  - Multiple inheritance from TObject                              //
  22 //  - Function Expand() allows to expand the array without           //
  23 //    deleting the array contents                                    //
  24 //                                                                   //
  25 // Origin:  Marian Ivanov, Uni. of Bratislava, ivanov@fmph.uniba.sk  //
  26 //                                                                   //
  27 ///////////////////////////////////////////////////////////////////////
  28
  29 #include "AliTRDarrayF.h"
  30
  31 ClassImp(AliTRDarrayF)
  32
  33 //_____________________________________________________________________________
  34 AliTRDarrayF::AliTRDarrayF():TArrayF()
  35 {
  36   //
  37   // Default constructor
  38   //
  39
  40 }
  41
  42 //_____________________________________________________________________________
  43 AliTRDarrayF::~AliTRDarrayF()
  44 {
  45   //
  46   // Default destructor
  47   //
  48
  49 }
  50
  51 //_____________________________________________________________________________
  52 void AliTRDarrayF::Copy(TObject &a) const
  53 {
  54   //
  55   // Copy function
  56   //
  57
  58   TObject::Copy(a);
  59   TArrayF::Copy(((TArrayF &) a));
  60
  61 }
  62
  63 //_____________________________________________________________________________
  64 void AliTRDarrayF::Expand(Int_t n)
  65 {
  66   //
  67   // Sets the  array size of the TArrayF object to <n> integers and copies
  68   // the old array.
  69   // If n < 0 leave the array unchanged.
  70   // The user is responsible for the appropriate size of the array.
  71   //
  72
  73   if (n < 0) return;
  74   fArray = (Float_t*) TStorage::ReAlloc(fArray
  75                                        ,n  * sizeof(Float_t)
  76                                        ,fN * sizeof(Float_t));
  77   if (fArray != 0) fN = n;
  78
  79 }
  80