new file mode 100644
--- /dev/null
+++ b/src/oct-obj.cc
@@ -0,0 +1,119 @@
+// oct-obj.cc                                            -*- 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.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#if defined (__GNUG__)
+#pragma implementation
+#endif
+
+#include "Array.h"
+#include "mx-base.h"
+#include "Range.h"
+
+#include "tree-const.h"
+#include "oct-obj.h"
+
+// We can't put these functions in oct-obj.h without including
+// tree-const.h there too, and that causes trouble...
+
+Octave_object::Octave_object (double d)
+  : Array<tree_constant> (1, tree_constant (d)) { }
+
+Octave_object::Octave_object (const Matrix& m)
+  : Array<tree_constant> (1, tree_constant (m)) { }
+
+Octave_object::Octave_object (const DiagMatrix& d)
+  : Array<tree_constant> (1, tree_constant (d)) { }
+
+Octave_object::Octave_object (const RowVector& v, int pcv = -1)
+  : Array<tree_constant> (1, tree_constant (v, pcv)) { }
+
+Octave_object::Octave_object (const ColumnVector& v, int pcv = -1)
+  : Array<tree_constant> (1, tree_constant (v, pcv)) { }
+
+Octave_object::Octave_object (const Complex& c)
+  : Array<tree_constant> (1, tree_constant (c)) { }
+
+Octave_object::Octave_object (const ComplexMatrix& m)
+  : Array<tree_constant> (1, tree_constant (m)) { }
+
+Octave_object::Octave_object (const ComplexDiagMatrix& d)
+  : Array<tree_constant> (1, tree_constant (d)) { }
+
+Octave_object::Octave_object (const ComplexRowVector& v, int pcv = -1)
+  : Array<tree_constant> (1, tree_constant (v, pcv)) { }
+
+Octave_object::Octave_object (const ComplexColumnVector& v, int pcv = -1)
+  : Array<tree_constant> (1, tree_constant (v, pcv)) { }
+
+Octave_object::Octave_object (const char *s)
+  : Array<tree_constant> (1, tree_constant (s)) { }
+
+Octave_object::Octave_object (double base, double limit, double inc)
+  : Array<tree_constant> (1, tree_constant (base, limit, inc)) { }
+
+Octave_object::Octave_object (const Range& r)
+  : Array<tree_constant> (1, tree_constant (r)) { }
+
+tree_constant&
+Octave_object::operator () (int n)
+{
+  maybe_resize (n);
+  return Array<tree_constant>::operator () (n);
+}
+
+tree_constant
+Octave_object::operator () (int n) const
+{
+  return Array<tree_constant>::operator () (n);
+}
+
+tree_constant&
+Octave_object::elem (int n)
+{
+  maybe_resize (n);
+  return Array<tree_constant>::elem (n);
+}
+
+tree_constant
+Octave_object::elem (int n) const
+{
+  return Array<tree_constant>::operator () (n);
+}
+
+void
+Octave_object::maybe_resize (int n)
+{
+  if (n >= length ())
+    resize (n + 1, Matrix ());
+}
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; page-delimiter: "^/\\*" ***
+;;; End: ***
+*/