[u/mrichter/AliRoot.git] / TRD / AliTRDarrayF.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 TArrayF.           //
//  - 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 "AliTRDarrayF.h"

ClassImp(AliTRDarrayF)

//_____________________________________________________________________________
AliTRDarrayF::AliTRDarrayF():TArrayF()
{
  //
  // Default constructor
  //

}

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

  if (fArray) {
    delete [] fArray;
    fArray = 0;
  }

}

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

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

}

//_____________________________________________________________________________
void AliTRDarrayF::Expand(Int_t n)
{
  //
  // Sets the  array size of the TArrayF 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 = (Float_t *) TStorage::ReAlloc(fArray
                                        ,n *sizeof(Float_t)
                                        ,fN*sizeof(Float_t));

  if (fArray != 0) {
    fN = n;
  } 

}
Commit	Line	Data
6f1e466d	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	/* $Id$ */
6f1e466d	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
fa6b9ac3	33	//_____________________________________________________________________________
	34	AliTRDarrayF::AliTRDarrayF():TArrayF()
	35	{
	36	//
	37	// Default constructor
	38	//
	39
	40	}
	41
6f1e466d	42	//_____________________________________________________________________________
	43	AliTRDarrayF::~AliTRDarrayF()
	44	{
	45	//
	46	// Default destructor
	47	//
	48
c10bf383	49	if (fArray) {
	50	delete [] fArray;
	51	fArray = 0;
	52	}
	53
6f1e466d	54	}
6f1e466d	55
8230f242	56	//_____________________________________________________________________________
e0d47c25	57	void AliTRDarrayF::Copy(TObject &a) const
8230f242	58	{
	59	//
	60	// Copy function
	61	//
	62
	63	TObject::Copy(a);
dd9a6ee3	64	TArrayF::Copy(((TArrayF &) a));
8230f242	65
	66	}
	67
6f1e466d	68	//_____________________________________________________________________________
	69	void AliTRDarrayF::Expand(Int_t n)
	70	{
	71	//
	72	// Sets the array size of the TArrayF object to <n> integers and copies
	73	// the old array.
	74	// If n < 0 leave the array unchanged.
	75	// The user is responsible for the appropriate size of the array.
	76	//
	77
a6dd11e9	78	if (n < 0) {
	79	return;
	80	}
	81
	82	fArray = (Float_t *) TStorage::ReAlloc(fArray
	83	,n *sizeof(Float_t)
	84	,fN*sizeof(Float_t));
	85
	86	if (fArray != 0) {
	87	fN = n;
	88	}
	89
6f1e466d	90	}
6f1e466d	91