/usr/include/vtk-7.1/vtkAlgorithmOutput.h is in libvtk7-dev 7.1.1+dfsg1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | /*=========================================================================
  Program:   Visualization Toolkit
  Module:    vtkAlgorithmOutput.h
  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.
=========================================================================*/
/**
 * @class   vtkAlgorithmOutput
 * @brief   Proxy object to connect input/output ports.
 *
 * vtkAlgorithmOutput is a proxy object returned by the GetOutputPort
 * method of vtkAlgorithm.  It may be passed to the
 * SetInputConnection, AddInputConnection, or RemoveInputConnection
 * methods of another vtkAlgorithm to establish a connection between
 * an output and input port.  The connection is not stored in the
 * proxy object: it is simply a convenience for creating or removing
 * connections.
*/
#ifndef vtkAlgorithmOutput_h
#define vtkAlgorithmOutput_h
#include "vtkCommonExecutionModelModule.h" // For export macro
#include "vtkObject.h"
class vtkAlgorithm;
class VTKCOMMONEXECUTIONMODEL_EXPORT vtkAlgorithmOutput : public vtkObject
{
public:
  static vtkAlgorithmOutput *New();
  vtkTypeMacro(vtkAlgorithmOutput,vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
  void SetIndex(int index);
  int GetIndex();
  vtkAlgorithm* GetProducer();
  void SetProducer(vtkAlgorithm* producer);
protected:
  vtkAlgorithmOutput();
  ~vtkAlgorithmOutput() VTK_OVERRIDE;
  int Index;
  vtkAlgorithm* Producer;
private:
  vtkAlgorithmOutput(const vtkAlgorithmOutput&) VTK_DELETE_FUNCTION;
  void operator=(const vtkAlgorithmOutput&) VTK_DELETE_FUNCTION;
};
#endif
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