--- a/src/OPERATORS/op-b-bm.cc	Fri Sep 03 15:43:30 2004 +0000
+++ b/src/OPERATORS/op-b-bm.cc	Sat Sep 04 01:16:28 2004 +0000
@@ -45,10 +45,17 @@
 DEFNDBINOP_FN (el_and, bool, bool_matrix, bool, bool_array, mx_el_and)
 DEFNDBINOP_FN (el_or, bool, bool_matrix, bool, bool_array, mx_el_or)
 
-DEFNDCATOP_FN (b_bm, bool, bool_matrix, array, array, concat)
+DEFNDCATOP_FN (b_bm, bool, bool_matrix, bool_array, bool_array, concat)
 DEFNDCATOP_FN (b_m, bool, matrix, array, array, concat)
 DEFNDCATOP_FN (s_bm, scalar, bool_matrix, array, array, concat)
 
+DEFCONV (bool_matrix_conv, bool, bool_matrix)
+{
+  CAST_CONV_ARG (const octave_bool&);
+
+  return new octave_bool_matrix (v.bool_matrix_value ());
+}
+
 void
 install_b_bm_ops (void)
 {
@@ -58,6 +65,10 @@
   INSTALL_CATOP (octave_bool, octave_bool_matrix, b_bm);
   INSTALL_CATOP (octave_bool, octave_matrix, b_m);
   INSTALL_CATOP (octave_scalar, octave_bool_matrix, s_bm);
+
+  INSTALL_ASSIGNCONV (octave_bool, octave_bool_matrix, octave_bool_matrix);
+
+  INSTALL_WIDENOP (octave_bool, octave_bool_matrix, bool_matrix_conv);
 }
 
 /*