Transition to NewIO
[u/mrichter/AliRoot.git] / CONTAINERS / AliArrayI.cxx
CommitLineData
a46e9031 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
88cb7938 16/* $Id$ */
a46e9031 17
18///////////////////////////////////////////////////////////////////////
19// Added additional functionality to original TArrayI //
20// multiple inheritance from TObject to be possible use automatic //
21// branch mechanism for tree
22// function Expand to be possible expand array without deleting //
23// array contents //
24// //
25// Origin: Marian Ivanov, Uni. of Bratislava, ivanov@fmph.uniba.sk //
26// //
27///////////////////////////////////////////////////////////////////////
28#include "AliArrayI.h"
29ClassImp(AliArrayI)
30void AliArrayI::Expand(Int_t n)
31{
32 //
33 // Set array size of TArrayI object to n integers and copy old array
34 // If n<0 leave array unchanged.
35 // user are responsible for appopiate size of array
36 //
37 if (n < 0) return;
38 fArray = (Int_t*) TStorage::ReAlloc(fArray, n * sizeof(Int_t),fN * sizeof(Int_t));
39 if (fArray!=0) fN= n;
40}