--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/ov-bool.cc	Sat Apr 19 01:26:39 1997 +0000
@@ -0,0 +1,123 @@
+/*
+
+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 (__GNUG__)
+#pragma implementation
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "mx-base.h"
+
+#include "gripes.h"
+#include "oct-obj.h"
+#include "ops.h"
+#include "ov-bool.h"
+#include "ov-re-mat.h"
+#include "ov-scalar.h"
+#include "pr-output.h"
+
+octave_allocator
+octave_bool::allocator (sizeof (octave_bool));
+
+int
+octave_bool::t_id (-1);
+
+const string
+octave_bool::t_name ("bool");
+
+static octave_value *
+default_numeric_conversion_function (const octave_value& a)
+{
+  CAST_CONV_ARG (const octave_bool&);
+
+  return new octave_scalar (v.bool_value ());
+}
+
+type_conv_fcn
+octave_bool::numeric_conversion_function (void) const
+{
+  return default_numeric_conversion_function;
+}
+
+static inline bool
+valid_scalar_indices (const octave_value_list& args)
+{
+  int nargin = args.length ();
+
+  for (int i = 0; i < nargin; i++)
+    if (! args(i).valid_as_scalar_index ())
+      return false;
+
+  return true;
+}
+
+octave_value
+octave_bool::index (const octave_value_list& idx) const
+{
+  octave_value retval;
+
+  if (valid_scalar_indices (idx))
+    retval = scalar;
+  else
+    {
+      // XXX FIXME XXX -- this doesn't solve the problem of
+      //
+      //   a = 1; a([1,1], [1,1], [1,1])
+      //
+      // and similar constructions.  Hmm...
+
+      // XXX FIXME XXX -- using this constructor avoids narrowing the
+      // 1x1 matrix back to a scalar value.  Need a better solution
+      // to this problem.
+
+      octave_value tmp (new octave_matrix (matrix_value ()));
+
+      retval = tmp.index (idx);
+    }
+
+  return retval;
+}
+
+octave_value
+octave_bool::convert_to_str (void) const
+{
+  char s[2];
+  s[0] = (char) scalar;
+  s[1] = '\0';
+
+  return octave_value (s);
+}
+
+void
+octave_bool::print (ostream& os, bool pr_as_read_syntax)
+{
+  octave_print_internal (os, scalar, pr_as_read_syntax);
+}
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; End: ***
+*/