--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libinterp/octave-value/ov-legacy-range.h	Mon Mar 21 23:58:35 2022 -0400
@@ -0,0 +1,110 @@
+////////////////////////////////////////////////////////////////////////
+//
+// Copyright (C) 1996-2022 The Octave Project Developers
+//
+// See the file COPYRIGHT.md in the top-level directory of this
+// distribution or <https://octave.org/copyright/>.
+//
+// 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 3 of the License, 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, see
+// <https://www.gnu.org/licenses/>.
+//
+////////////////////////////////////////////////////////////////////////
+
+#if ! defined (octave_ov_legacy_range_h)
+#define octave_ov_legacy_range_h 1
+
+#include "octave-config.h"
+
+#include <cstdlib>
+
+#include <iosfwd>
+#include <string>
+
+#include "Range.h"
+
+#include "lo-mappers.h"
+#include "lo-utils.h"
+#include "mx-base.h"
+
+#include "error.h"
+#include "oct-stream.h"
+#include "ov-base.h"
+#include "ov-re-mat.h"
+#include "ov-typeinfo.h"
+
+class octave_value_list;
+
+// Legacy Range values.
+
+// Provide enough of the old octave_range class to allow Range objects
+// to be loaded from files.  After loading, they are converted to some
+// other type by a call to octave_value::maybe_mutate in
+// load_save_system::load_vars so there should no longer be any values
+// of this type used by the interpreter.  The action of maybe_mutate is
+// performed by octave_legacy_range::try_narrowing_conversion.
+
+class
+octave_legacy_range : public octave_base_value
+{
+public:
+
+  octave_legacy_range (void);
+
+  octave_legacy_range (const Range& r);
+
+  octave_legacy_range (const octave_legacy_range& r) = default;
+
+  // No assignment.
+
+  octave_legacy_range& operator = (const octave_legacy_range&) = delete;
+
+  ~octave_legacy_range (void) { }
+
+  octave_base_value * clone (void) const
+  {
+    return new octave_legacy_range (*this);
+  }
+
+  // A range is really just a special kind of real matrix object.  In
+  // the places where we need to call empty_clone, it makes more sense
+  // to create an empty matrix (0x0) instead of an empty range (1x0).
+  octave_base_value * empty_clone (void) const { return new octave_matrix (); }
+
+  type_conv_info numeric_conversion_function (void) const;
+
+  octave_base_value * try_narrowing_conversion (void);
+
+  bool is_defined (void) const { return true; }
+
+  bool is_legacy_object (void) const { return true; }
+
+  bool is_constant (void) const { return true; }
+
+  bool load_ascii (std::istream& is);
+
+  bool load_binary (std::istream& is, bool swap,
+                    octave::mach_info::float_format fmt);
+
+  bool load_hdf5 (octave_hdf5_id loc_id, const char *name);
+
+private:
+
+  Range range;
+
+  DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA
+};
+
+#endif