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diff --git a/testsuite/vests/vhdl-93/billowitch/compliant/tc945.vhd b/testsuite/vests/vhdl-93/billowitch/compliant/tc945.vhd
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+
+-- Copyright (C) 2001 Bill Billowitch.
+
+-- Some of the work to develop this test suite was done with Air Force
+-- support.  The Air Force and Bill Billowitch assume no
+-- responsibilities for this software.
+
+-- This file is part of VESTs (Vhdl tESTs).
+
+-- VESTs 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 of the License, or (at
+-- your option) any later version. 
+
+-- VESTs 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 VESTs; if not, write to the Free Software Foundation,
+-- Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+
+-- ---------------------------------------------------------------------
+--
+-- $Id: tc945.vhd,v 1.2 2001-10-26 16:30:02 paw Exp $
+-- $Revision: 1.2 $
+--
+-- ---------------------------------------------------------------------
+
+ENTITY c06s01b00x00p09n01i00945ent IS
+END c06s01b00x00p09n01i00945ent;
+
+ARCHITECTURE c06s01b00x00p09n01i00945arch OF c06s01b00x00p09n01i00945ent IS
+
+BEGIN
+  TESTING: PROCESS
+    function "+" (a, b:in integer) return bit is
+      variable c: bit;
+      variable d: integer := 0;
+    begin
+      d := a + b + "+".d; -- function call can be used as a prefix.
+      if (d > 0) then
+        c := '0';
+      end if;
+      if (d < 0) then
+        c := '1';
+      end if;
+      return c; 
+    end;
+    variable k : bit;
+  BEGIN
+    k := "+"(1,2);
+    assert NOT(k='0') 
+      report "***PASSED TEST: c06s01b00x00p09n01i00945" 
+      severity NOTE;
+    assert (k='0') 
+      report "***FAILED TEST: c06s01b00x00p09n01i00945 - Prefix can only be a name or a function_call."
+      severity ERROR;
+    wait;
+  END PROCESS TESTING;
+
+END c06s01b00x00p09n01i00945arch;