new file mode 100644
--- /dev/null
+++ b/src/ov-bool-mat.h
@@ -0,0 +1,155 @@
+/*
+
+Copyright (C) 1996, 1997 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_bool_matrix_h)
+#define octave_bool_matrix_h 1
+
+#if defined (__GNUG__)
+#pragma interface
+#endif
+
+#include <cstdlib>
+
+#include <string>
+
+class ostream;
+
+#include "mx-base.h"
+#include "oct-alloc.h"
+
+#include "error.h"
+#include "ov-base.h"
+#include "ov-typeinfo.h"
+
+class Octave_map;
+class octave_value_list;
+
+class tree_walker;
+
+// Character matrix values.
+
+class
+octave_bool_matrix : public octave_base_value
+{
+public:
+
+  octave_bool_matrix (void)
+    : octave_base_value () { }
+
+  octave_bool_matrix (const boolMatrix& bm)
+    : octave_base_value (), matrix (bm) { }
+
+  octave_bool_matrix (const octave_bool_matrix& bm)
+    : octave_base_value (), matrix (bm.matrix) { }
+
+  ~octave_bool_matrix (void) { }
+
+  octave_value *clone (void) { return new octave_bool_matrix (*this); }
+
+  void *operator new (size_t size)
+    { return allocator.alloc (size); }
+
+  void operator delete (void *p, size_t size)
+    { allocator.free (p, size); }
+
+  type_conv_fcn numeric_conversion_function (void) const;
+
+  octave_value *try_narrowing_conversion (void);
+
+  octave_value index (const octave_value_list& idx) const;
+
+  void assign (const octave_value_list& idx, const boolMatrix& rhs);
+
+  idx_vector index_vector (void) const { return idx_vector (matrix); }
+
+  int rows (void) const { return matrix.rows (); }
+  int columns (void) const { return matrix.columns (); }
+
+  bool is_defined (void) const { return true; }
+
+  bool is_bool_matrix (void) const { return true; }
+
+  octave_value all (void) const { return matrix.all (); }
+  octave_value any (void) const { return matrix.any (); }
+
+  bool is_real_type (void) const { return true; }
+
+  bool is_matrix_type (void) const { return true; }
+
+  bool is_numeric_type (void) const { return true; }
+
+  bool valid_as_scalar_index (void) const;
+
+  bool valid_as_zero_index (void) const { return is_zero_by_zero (); }
+
+  bool is_true (void) const;
+
+  double double_value (bool = false) const;
+
+  Matrix matrix_value (bool = false) const { return matrix; }
+
+  Complex complex_value (bool = false) const;
+
+  ComplexMatrix complex_matrix_value (bool = false) const { return matrix; }
+
+  boolMatrix bool_matrix_value (bool = false) const { return matrix; }
+
+  octave_value convert_to_str (void) const
+    { return octave_value (matrix); }
+
+  octave_value transpose (void) const
+    { return octave_value (matrix.transpose ()); }
+
+  octave_value hermitian (void) const
+    { return octave_value (matrix.transpose ()); }
+
+  void print (ostream& os, bool pr_as_read_syntax = false);
+
+  int type_id (void) const { return t_id; }
+
+  string type_name (void) const { return t_name; }
+
+  static int static_type_id (void) { return t_id; }
+
+  static void register_type (void)
+    { t_id = octave_value_typeinfo::register_type (t_name); }
+
+protected:
+
+  boolMatrix matrix;
+
+  static octave_allocator allocator;
+
+  // Type id of bool matrix objects, set by register_type().
+  static int t_id;
+
+  // Type name of bool matrix objects, defined in ov-bool-mat.cc.
+  static const string t_name;
+};
+
+#endif
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; End: ***
+*/