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diff --git a/testsuite/vests/vhdl-93/billowitch/compliant/tc2115.vhd b/testsuite/vests/vhdl-93/billowitch/compliant/tc2115.vhd
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index 000000000..ddd9a4c51
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+++ b/testsuite/vests/vhdl-93/billowitch/compliant/tc2115.vhd
@@ -0,0 +1,57 @@
+
+-- 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: tc2115.vhd,v 1.2 2001-10-26 16:29:45 paw Exp $
+-- $Revision: 1.2 $
+--
+-- ---------------------------------------------------------------------
+
+ENTITY c07s02b04x00p20n01i02115ent IS
+END c07s02b04x00p20n01i02115ent;
+
+ARCHITECTURE c07s02b04x00p20n01i02115arch OF c07s02b04x00p20n01i02115ent IS
+
+  TYPE     real_v       is array (integer range <>) of real;
+  SUBTYPE     real_4       is real_v (1 to 4);
+  SUBTYPE     real_null    is real_v (1 to 0);
+
+BEGIN
+  TESTING : PROCESS
+    variable result    : real_4;
+    variable l_operand : real_4 := (12.345, -67.890,12.345, -67.890);
+    variable r_operand : real_null;
+  BEGIN
+    result := l_operand & r_operand;
+    wait for 20 ns;
+    assert NOT((result = (12.345, -67.890,12.345, -67.890)) and (result(1) = 12.345))
+      report "***PASSED TEST: c07s02b04x00p20n01i02115"
+      severity NOTE;
+    assert ((result = (12.345, -67.890,12.345, -67.890)) and (result(1) = 12.345))
+      report "***FAILED TEST: c07s02b04x00p20n01i02115 - Concatenation of null and REAL arrays failed."
+      severity ERROR;
+    wait;
+  END PROCESS TESTING;
+
+END c07s02b04x00p20n01i02115arch;