[u/mrichter/AliRoot.git] / TRD / AliTRDarrayI.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

/* $Id$ */

///////////////////////////////////////////////////////////////////////
//                                                                   //  
// Added additional functionality to the original TArrayI.           //
//  - Multiple inheritance from TObject                              //
//  - Function Expand() allows to expand the array without           //
//    deleting the array contents                                    //
//                                                                   //
// Origin:  Marian Ivanov, Uni. of Bratislava, ivanov@fmph.uniba.sk  // 
//                                                                   //  
///////////////////////////////////////////////////////////////////////

#include "AliTRDarrayI.h"

ClassImp(AliTRDarrayI)

//_____________________________________________________________________________
AliTRDarrayI::AliTRDarrayI():TArrayI()
{
  //
  // Default constructor
  //

}

//_____________________________________________________________________________
AliTRDarrayI::~AliTRDarrayI()
{
  //
  // Default destructor
  //

}

//_____________________________________________________________________________
void AliTRDarrayI::Copy(TObject &a) const
{
  //
  // Copy function
  //

  TObject::Copy(a);
  TArrayI::Copy(((TArrayI &) a));

}

//_____________________________________________________________________________
void AliTRDarrayI::Expand(Int_t n)
{
  //
  // Sets the  array size of the TArrayI object to <n> integers and copies
  // the old array.
  // If n < 0 leave the array unchanged.
  // The user is responsible for the appropriate size of the array.
  //

  if (n < 0) {
    return;  
  }

  fArray = (Int_t *) TStorage::ReAlloc(fArray
                                      ,n *sizeof(Int_t)
                                      ,fN*sizeof(Int_t));

  if (fArray != 0) {
    fN = n;
  }
 
}
Commit	Line	Data
f7336fa3	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	/* $Id$ */
f7336fa3	17
f7336fa3	18	///////////////////////////////////////////////////////////////////////
6f1e466d	19	// //
	20	// Added additional functionality to the original TArrayI. //
	21	// - Multiple inheritance from TObject //
	22	// - Function Expand() allows to expand the array without //
	23	// deleting the array contents //
f7336fa3	24	// //
6f1e466d	25	// Origin: Marian Ivanov, Uni. of Bratislava, ivanov@fmph.uniba.sk //
f7336fa3	26	// //
	27	///////////////////////////////////////////////////////////////////////
	28
	29	#include "AliTRDarrayI.h"
	30
	31	ClassImp(AliTRDarrayI)
	32
fa6b9ac3	33	//_____________________________________________________________________________
	34	AliTRDarrayI::AliTRDarrayI():TArrayI()
	35	{
	36	//
	37	// Default constructor
	38	//
	39
	40	}
	41
6f1e466d	42	//_____________________________________________________________________________
f7336fa3	43	AliTRDarrayI::~AliTRDarrayI()
	44	{
	45	//
6f1e466d	46	// Default destructor
	47	//
	48
f7336fa3	49	}
f7336fa3	50
8230f242	51	//_____________________________________________________________________________
e0d47c25	52	void AliTRDarrayI::Copy(TObject &a) const
8230f242	53	{
	54	//
	55	// Copy function
	56	//
	57
	58	TObject::Copy(a);
dd9a6ee3	59	TArrayI::Copy(((TArrayI &) a));
8230f242	60
	61	}
	62
6f1e466d	63	//_____________________________________________________________________________
f7336fa3	64	void AliTRDarrayI::Expand(Int_t n)
	65	{
	66	//
6f1e466d	67	// Sets the array size of the TArrayI 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.
f7336fa3	71	//
6f1e466d	72
a6dd11e9	73	if (n < 0) {
	74	return;
	75	}
	76
	77	fArray = (Int_t *) TStorage::ReAlloc(fArray
	78	,n *sizeof(Int_t)
	79	,fN*sizeof(Int_t));
	80
	81	if (fArray != 0) {
	82	fN = n;
	83	}
6f1e466d	84
f7336fa3	85	}
f7336fa3	86