new file mode 100644
--- /dev/null
+++ b/src/ov-streamoff.h
@@ -0,0 +1,160 @@
+/*
+
+Copyright (C) 2003 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, 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#if !defined (octave_streamoff_h)
+#define octave_streamoff_h 1
+
+#if defined (__GNUG__) && defined (USE_PRAGMA_INTERFACE_IMPLEMENTATION)
+#pragma interface
+#endif
+
+#include <iostream>
+#include <string>
+
+#include "mx-base.h"
+#include "mx-op-defs.h"
+#include "oct-alloc.h"
+#include "str-vec.h"
+
+#include "error.h"
+#include "oct-obj.h"
+#include "ov-base-mat.h"
+#include "ov-typeinfo.h"
+
+class tree_walker;
+
+// Stream offsets.
+
+class streamoff_array : public ArrayN<std::streamoff>
+{
+public:
+
+  streamoff_array (void) : ArrayN<std::streamoff> () { }
+
+  streamoff_array (const dim_vector& dv,
+		   const std::streamoff& val = resize_fill_value ())
+    : ArrayN<std::streamoff> (dv, val) { }
+
+  streamoff_array (const ArrayN<std::streamoff>& sa)
+    : ArrayN<std::streamoff> (sa) { }
+
+  streamoff_array (const streamoff_array& sa)
+    : ArrayN<std::streamoff> (sa) { }
+
+  ~streamoff_array (void) { }
+
+  streamoff_array& operator = (const streamoff_array& a)
+    {
+      if (this != &a)
+	ArrayN<std::streamoff>::operator = (a);
+
+      return *this;
+    }
+
+  streamoff_array squeeze (void) const
+    { return ArrayN<std::streamoff>::squeeze (); }
+
+  boolNDArray all (int dim = -1) const;
+  boolNDArray any (int dim = -1) const;
+
+  // streamoff_array& operator += (const streamoff_array& a);
+  // streamoff_array& operator -= (const streamoff_array& a);
+
+  static int compute_index (Array<int>& ra_idx,
+			    const dim_vector& dimensions);
+
+  static std::streamoff resize_fill_value (void) { return 0; }
+};
+
+NDCMP_OP_DECL (mx_el_eq, std::streamoff, streamoff_array);
+NDCMP_OP_DECL (mx_el_ne, std::streamoff, streamoff_array);
+
+NDCMP_OP_DECL (mx_el_eq, streamoff_array, std::streamoff);
+NDCMP_OP_DECL (mx_el_ne, streamoff_array, std::streamoff);
+
+NDCMP_OP_DECL (mx_el_eq, streamoff_array, streamoff_array);
+NDCMP_OP_DECL (mx_el_ne, streamoff_array, streamoff_array);
+
+BIN_OP_DECL (streamoff_array, operator +, streamoff_array, streamoff_array);
+BIN_OP_DECL (streamoff_array, operator -, streamoff_array, streamoff_array);
+
+BIN_OP_DECL (streamoff_array, operator +, streamoff_array, std::streamoff);
+BIN_OP_DECL (streamoff_array, operator -, streamoff_array, std::streamoff);
+
+BIN_OP_DECL (streamoff_array, operator +, std::streamoff, streamoff_array);
+BIN_OP_DECL (streamoff_array, operator -, std::streamoff, streamoff_array);
+
+class
+octave_streamoff : public octave_base_matrix<streamoff_array>
+{
+public:
+
+  octave_streamoff (void)
+    : octave_base_matrix<streamoff_array> () { }
+
+  octave_streamoff (const std::streamoff& off)
+    : octave_base_matrix<streamoff_array>
+        (streamoff_array (dim_vector (1, 1), off)) { }
+
+  octave_streamoff (const streamoff_array& off)
+    : octave_base_matrix<streamoff_array> (off) { }
+
+  octave_streamoff (const octave_streamoff& off)
+    : octave_base_matrix<streamoff_array> (off) { }
+
+  ~octave_streamoff (void) { }
+
+  octave_value *clone (void) const { return new octave_streamoff (*this); }
+  octave_value *empty_clone (void) const { return new octave_streamoff (); }
+
+  bool is_defined (void) const { return true; }
+
+  bool is_streamoff (void) const { return true; }
+
+  std::streamoff streamoff_value (void) const;
+
+  streamoff_array streamoff_array_value (void) const { return matrix; }
+
+  //  void increment (void) { matrix += 1; }
+
+  //  void decrement (void) { matrix -= 1; }
+
+  bool print_as_scalar (void) const { return true; }
+
+  void print (std::ostream& os, bool pr_as_read_syntax = false) const;
+
+  void print_raw (std::ostream& os, bool pr_as_read_syntax = false) const;
+
+private:
+
+  DECLARE_OCTAVE_ALLOCATOR
+
+  DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA
+};
+
+#endif
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; End: ***
+*/