--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/OPERATORS/op-str-str.cc	Mon May 05 05:33:54 1997 +0000
@@ -0,0 +1,117 @@
+/*
+
+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 "gripes.h"
+#include "ov.h"
+#include "ov-str-mat.h"
+#include "ov-typeinfo.h"
+#include "ops.h"
+
+// string by string ops.
+
+DEFBINOP (eq, char_matrix_str, char_matrix_str)
+{
+  CAST_BINOP_ARGS (const octave_char_matrix_str&,
+		   const octave_char_matrix_str&);
+
+  charMatrix cm1 = v1.char_matrix_value ();
+  charMatrix cm2 = v2.char_matrix_value ();
+
+  if (cm1.rows () == 1 && cm1.columns () == 1)
+    {
+      if (cm2.rows () == 1 && cm2.columns () == 1)
+	return octave_value (cm1 (0, 0) == cm2 (0, 0));
+      else
+	SC_MX_BOOL_OP (char, c, cm1 (0, 0), charMatrix, m, cm2,
+		       c == m (i, j), 0.0);
+    }
+  else
+    {
+      int cm2_nr = cm2.rows ();
+      int cm2_nc = cm2.cols ();
+
+      if (cm2_nr == 1 && cm2_nc == 1)
+	MX_SC_BOOL_OP (charMatrix, m, cm1, char, c, cm2 (0, 0),
+		       c == m (i, j), 0.0);
+      else
+	MX_MX_BOOL_OP (charMatrix, m1, cm1, charMatrix, m2, cm2,
+		       m1 (i, j) == m2 (i, j), "==", 0.0, 1.0);
+    }
+}
+
+DEFBINOP (ne, char_matrix_str, char_matrix_str)
+{
+  CAST_BINOP_ARGS (const octave_char_matrix_str&,
+		   const octave_char_matrix_str&);
+
+  charMatrix cm1 = v1.char_matrix_value ();
+  charMatrix cm2 = v2.char_matrix_value ();
+
+  if (cm1.rows () == 1 && cm1.columns () == 1)
+    {
+      if (cm2.rows () == 1 && cm2.columns () == 1)
+	return octave_value (cm1 (0, 0) != cm2 (0, 0));
+      else
+	SC_MX_BOOL_OP (char, c, cm1 (0, 0), charMatrix, m, cm2,
+		       c != m (i, j), 1.0);
+    }
+  else
+    {
+      if (cm2.rows () == 1 && cm2.columns () == 1)
+	MX_SC_BOOL_OP (charMatrix, m, cm1, char, c, cm2 (0, 0),
+		       c != m (i, j), 1.0);
+      else
+	MX_MX_BOOL_OP (charMatrix, m1, cm1, charMatrix, m2, cm2,
+		       m1 (i, j) != m2 (i, j), "!=", 1.0, 0.0);
+    }
+}
+
+DEFASSIGNOP (assign, char_matrix_str, char_matrix_str)
+{
+  CAST_BINOP_ARGS (octave_char_matrix_str&, const octave_char_matrix_str&);
+
+  v1.assign (idx, v2.char_matrix_value ());
+  return octave_value ();
+}
+
+void
+install_str_str_ops (void)
+{
+  INSTALL_BINOP (eq, octave_char_matrix_str, octave_char_matrix_str, eq);
+  INSTALL_BINOP (ne, octave_char_matrix_str, octave_char_matrix_str, ne);
+
+  INSTALL_ASSIGNOP (asn_eq, octave_char_matrix_str, octave_char_matrix_str, assign);
+}
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; End: ***
+*/