diff --git a/vvp/vvp_net.cc b/vvp/vvp_net.cc
index 27c20c014..2c44bfa5a 100644
--- a/vvp/vvp_net.cc
+++ b/vvp/vvp_net.cc
@@ -16,7 +16,7 @@
  *    along with this program; if not, write to the Free Software
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
-#ident "$Id: vvp_net.cc,v 1.26 2005/04/28 04:59:53 steve Exp $"
+#ident "$Id: vvp_net.cc,v 1.27 2005/05/07 03:14:50 steve Exp $"
 
 # include  "config.h"
 # include  "vvp_net.h"
@@ -353,6 +353,14 @@ char* vvp_vector4_t::as_string(char*buf, size_t buf_len)
       return res;
 }
 
+ostream& operator<< (ostream&out, vvp_vector4_t&that)
+{
+      out << that.size() << "'b";
+      for (unsigned idx = 0 ;  idx < that.size() ;  idx += 1)
+	    out << that.value(that.size()-idx-1);
+      return out;
+}
+
 bool vector4_to_value(const vvp_vector4_t&vec, unsigned long&val)
 {
       unsigned long res = 0;
@@ -1338,6 +1346,9 @@ vvp_bit4_t compare_gtge_signed(const vvp_vector4_t&a,
 
 /*
  * $Log: vvp_net.cc,v $
+ * Revision 1.27  2005/05/07 03:14:50  steve
+ *  ostream insert for vvp_vector4_t objects.
+ *
  * Revision 1.26  2005/04/28 04:59:53  steve
  *  Remove dead functor code.
  *
diff --git a/vvp/vvp_net.h b/vvp/vvp_net.h
index 03746d6a0..2a5759f94 100644
--- a/vvp/vvp_net.h
+++ b/vvp/vvp_net.h
@@ -18,7 +18,7 @@
  *    along with this program; if not, write to the Free Software
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
-#ident "$Id: vvp_net.h,v 1.24 2005/04/25 04:42:17 steve Exp $"
+#ident "$Id: vvp_net.h,v 1.25 2005/05/07 03:14:50 steve Exp $"
 
 # include  "config.h"
 # include  <assert.h>
@@ -109,6 +109,7 @@ class vvp_vector4_t {
 };
 
 extern vvp_vector4_t operator ~ (const vvp_vector4_t&that);
+extern ostream& operator << (ostream&, const vvp_vector4_t&);
 
 extern vvp_bit4_t compare_gtge(const vvp_vector4_t&a,
 			       const vvp_vector4_t&b,
@@ -698,6 +699,9 @@ class vvp_wide_fun_t : public vvp_net_fun_t {
 
 /*
  * $Log: vvp_net.h,v $
+ * Revision 1.25  2005/05/07 03:14:50  steve
+ *  ostream insert for vvp_vector4_t objects.
+ *
  * Revision 1.24  2005/04/25 04:42:17  steve
  *  vvp_fun_signal eliminates duplicate propagations.
  *