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diff --git a/testsuite/vests/vhdl-93/billowitch/compliant/tc479.vhd b/testsuite/vests/vhdl-93/billowitch/compliant/tc479.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: tc479.vhd,v 1.2 2001-10-26 16:29:55 paw Exp $
+-- $Revision: 1.2 $
+--
+-- ---------------------------------------------------------------------
+
+ENTITY model IS
+  PORT
+    (
+      F1:  OUT     integer := 3;
+      F2:  INOUT    integer := 3;
+      F3:  IN    integer
+      );
+END model;
+
+architecture model of model is
+begin
+  process
+  begin
+    wait for 1 ns;
+    assert F3= 3
+      report"wrong initialization of F3 through type conversion" severity failure;
+    assert F2 = 3
+      report"wrong initialization of F2 through type conversion" severity failure;
+    wait;
+  end process;
+end;
+
+
+ENTITY c03s02b01x01p19n01i00479ent IS
+END c03s02b01x01p19n01i00479ent;
+
+ARCHITECTURE c03s02b01x01p19n01i00479arch OF c03s02b01x01p19n01i00479ent IS
+
+  type    integer_vector is array (natural range <>) of integer;
+
+  function resolution5(i:in integer_vector) return integer is
+    variable temp : integer := 3;
+  begin
+    return temp;
+  end resolution5;
+
+  subtype    integer_state is resolution5 integer;
+  constant    C66 : integer_state   := 3;
+
+  function complex_scalar(s : integer_state) return integer is
+  begin
+    return 3;
+  end complex_scalar;
+  function scalar_complex(s : integer) return integer_state is
+  begin
+    return C66;
+  end scalar_complex;
+  component model1
+    PORT
+      (    
+        F1:  OUT     integer;
+        F2:  INOUT    integer;
+        F3:  IN    integer
+        );
+  end component;
+  for T1 : model1 use entity work.model(model);
+
+  signal S1 : integer_state;
+  signal S2 : integer_state;
+  signal S3 : integer_state:= C66;
+BEGIN
+  T1: model1
+    port map (
+      scalar_complex(F1) => S1,
+      scalar_complex(F2) => complex_scalar(S2),
+      F3 => complex_scalar(S3)
+      );
+  TESTING: PROCESS
+  BEGIN
+    wait for 1 ns;
+    assert NOT((S1 = C66) and (S2 = C66)) 
+      report "***PASSED TEST: c03s02b01x01p19n01i00479" 
+      severity NOTE;
+    assert ((S1 = C66) and (S2 = C66)) 
+      report "***FAILED TEST: c03s02b01x01p19n01i00479 - For an interface object of mode out, buffer, inout, or linkage, if the formal part includes a type conversion function, then the parameter subtype of that function must be a constrained array subtype."
+      severity ERROR;
+    wait;
+  END PROCESS TESTING;
+
+END c03s02b01x01p19n01i00479arch;