diff --git a/libveriuser/io_print.c b/libveriuser/io_print.c
index 4e2d90d9a..08791434c 100644
--- a/libveriuser/io_print.c
+++ b/libveriuser/io_print.c
@@ -17,7 +17,7 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #if !defined(WINNT)
-#ident "$Id: io_print.c,v 1.1 2002/05/23 03:35:42 steve Exp $"
+#ident "$Id: io_print.c,v 1.2 2002/05/30 02:10:08 steve Exp $"
 #endif
 
 # include  <vpi_user.h>
@@ -34,8 +34,33 @@ void io_printf(const char *fmt, ...)
       va_end(ap);
 }
 
+void tf_warning(const char *fmt, ...)
+{
+      va_list ap;
+
+      vpi_printf("warning! ");
+
+      va_start(ap, fmt);
+      vpi_vprintf(fmt, ap);
+      va_end(ap);
+}
+
+void tf_error(const char *fmt, ...)
+{
+      va_list ap;
+
+      vpi_printf("error! ");
+
+      va_start(ap, fmt);
+      vpi_vprintf(fmt, ap);
+      va_end(ap);
+}
+
 /*
  * $Log: io_print.c,v $
+ * Revision 1.2  2002/05/30 02:10:08  steve
+ *  Add tf_error and tf_warning from mruff
+ *
  * Revision 1.1  2002/05/23 03:35:42  steve
  *  Add the io_printf function to libveriuser.
  *
diff --git a/veriuser.h b/veriuser.h
index 29d3da1d2..7df5ce4b0 100644
--- a/veriuser.h
+++ b/veriuser.h
@@ -19,7 +19,7 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #if !defined(WINNT) && !defined(macintosh)
-#ident "$Id: veriuser.h,v 1.4 2002/05/24 20:29:07 steve Exp $"
+#ident "$Id: veriuser.h,v 1.5 2002/05/30 02:10:08 steve Exp $"
 #endif
 
 /*
@@ -51,12 +51,22 @@ extern void io_printf (const char *, ...)
 extern char* mc_scan_plusargs(char*plusarg);
 
 extern int tf_dofinish(void);
+
 extern int tf_dostop(void);
 
+extern void tf_error(const char*, ...)
+      __attribute__((format (printf,1,2)));
+
+extern void tf_warning(const char*, ...)
+      __attribute__((format (printf,1,2)));
+
 EXTERN_C_END
 
 /*
  * $Log: veriuser.h,v $
+ * Revision 1.5  2002/05/30 02:10:08  steve
+ *  Add tf_error and tf_warning from mruff
+ *
  * Revision 1.4  2002/05/24 20:29:07  steve
  *  Implement mc_scan_plusargs.
  *