--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/oct-iostrm.h	Thu Apr 25 03:17:36 1996 +0000
@@ -0,0 +1,138 @@
+/*
+
+Copyright (C) 1996 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_octave_iostream_h)
+#define octave_octave_iostream_h 1
+
+#include "oct-stream.h"
+
+class istream;
+class ostream;
+
+class
+octave_base_iostream : public octave_base_stream
+{
+public:
+
+  octave_base_iostream (const string& n = string (),
+			ios::openmode md = ios::in|ios::out,
+			octave_base_stream::arch_type at = native)
+    : octave_base_stream (md, at), nm (n) { }
+
+  ~octave_base_iostream (void) { }
+
+  // Position a stream at OFFSET relative to ORIGIN.
+
+  int seek (streampos offset, ios::seek_dir origin);
+
+  // Return current stream position.
+
+  long tell (void) const;
+
+  // Return non-zero if EOF has been reached on this stream.
+
+  bool eof (void) const;
+
+  // The name of the file.
+
+  string name (void);
+
+protected:
+
+  void invalid_operation (void) const;
+
+private:
+
+  string nm;
+
+  virtual const char *stream_type (void) const = 0;
+
+  // No copying!
+
+  octave_base_iostream (const octave_base_iostream&);
+
+  octave_base_iostream& operator = (const octave_base_iostream&);
+};
+
+class
+octave_istream : public octave_base_iostream
+{
+public:
+
+  octave_istream (istream *arg = 0, const string& nm = string ())
+    : octave_base_iostream (nm, ios::in, octave_base_stream::native),
+      is (arg) { }
+
+  ~octave_istream (void) { }
+
+  istream *input_stream (void) { return is; }
+
+  ostream *output_stream (void) { return 0; }
+
+private:
+
+  istream *is;
+
+  const char *stream_type (void) const { return "octave_istream"; }
+
+  // No copying!
+
+  octave_istream (const octave_istream&);
+
+  octave_istream& operator = (const octave_istream&);
+};
+
+class
+octave_ostream : public octave_base_iostream
+{
+public:
+
+  octave_ostream (ostream *arg, const string& nm = string ())
+    : octave_base_iostream (nm, ios::out, octave_base_stream::native),
+      os (arg) { }
+
+  ~octave_ostream (void) { }
+
+  istream *input_stream (void) { return 0; }
+
+  ostream *output_stream (void) { return os; }
+
+private:
+
+  ostream *os;
+
+  const char *stream_type (void) const { return "octave_ostream"; }
+
+  // No copying!
+
+  octave_ostream (const octave_ostream&);
+
+  octave_ostream& operator = (const octave_ostream&);
+};
+
+#endif
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; End: ***
+*/