// oct-obj.h                                            -*- C -*-
/*

Copyright (C) 1994 John W. Eaton

This file is part of Octave.

Octave is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.

Octave is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with Octave; see the file COPYING.  If not, write to the Free
Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#if !defined (octave_oct_obj_h)
#define octave_oct_obj_h 1

#if defined (__GNUG__)
#pragma interface
#endif

#include "Array.h"
#include "mx-base.h"

class tree_constant;
class Matrix;
class RowVector;
class ColumnVector;
class DiagMatrix;
class ComplexMatrix;
class ComplexRowVector;
class ComplexColumnVector;
class ComplexDiagMatrix;
class Range;

class Octave_object : public Array<tree_constant>
{
public:

  Octave_object (void) : Array<tree_constant> () { }
  Octave_object (int n, const tree_constant& val)
    : Array<tree_constant> (n, val) { }

  Octave_object (const tree_constant& tc) : Array<tree_constant> (1, tc) { }

  Octave_object (double d);
  Octave_object (const Matrix& m);
  Octave_object (const DiagMatrix& d);
  Octave_object (const RowVector& v, int pcv = -1);
  Octave_object (const ColumnVector& v, int pcv = -1);

  Octave_object (const Complex& c);
  Octave_object (const ComplexMatrix& m);
  Octave_object (const ComplexDiagMatrix& d);
  Octave_object (const ComplexRowVector& v, int pcv = -1);
  Octave_object (const ComplexColumnVector& v, int pcv = -1);

  Octave_object (const char *s);

  Octave_object (double base, double limit, double inc);
  Octave_object (const Range& r);

  Octave_object (const Octave_object& obj) : Array<tree_constant> (obj) { }

  Octave_object& operator = (const Octave_object& obj)
    {
      Array<tree_constant>::operator = (obj);
      return *this;
    }

// Assignment will resize on range errors.

  tree_constant& operator () (int n);

  tree_constant operator () (int n) const;

private:

// This constructor is private with no definition to keep statements
// like
//
//   Octave_object foo = 5;
//   Octave_object foo = 5.0;
//
// from doing different things.  Instead, you have to use the
// constructor
//
//   Octave_object (n, val);
//
// and supply a default value to create a vector-valued Octave_object.

  Octave_object (int n) : Array<tree_constant> (n);

  void maybe_resize (int n);

  tree_constant& elem (int n);
  tree_constant& checkelem (int n);

  tree_constant& xelem (int n);

  tree_constant elem (int n) const;
  tree_constant checkelem (int n) const;
};

#endif

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