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+-- C45343A.ADA
+
+--                             Grant of Unlimited Rights
+--
+--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
+--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained 
+--     unlimited rights in the software and documentation contained herein.
+--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making 
+--     this public release, the Government intends to confer upon all 
+--     recipients unlimited rights  equal to those held by the Government.  
+--     These rights include rights to use, duplicate, release or disclose the 
+--     released technical data and computer software in whole or in part, in 
+--     any manner and for any purpose whatsoever, and to have or permit others 
+--     to do so.
+--
+--                                    DISCLAIMER
+--
+--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
+--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED 
+--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
+--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE 
+--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
+--     PARTICULAR PURPOSE OF SAID MATERIAL.
+--*
+-- CHECK THAT CATENATION OF NULL OPERANDS YIELDS THE CORRECT RESULT,
+-- WITH THE CORRECT BOUNDS.
+
+-- BHS 6/29/84
+
+WITH REPORT;
+PROCEDURE C45343A IS
+
+     USE REPORT;
+
+     TYPE ARR IS ARRAY (INTEGER RANGE <>) OF INTEGER;
+     SUBTYPE ARR_8 IS ARR (1..8);
+     A1, A2 : ARR_8;
+
+     PROCEDURE CAT (A : ARR; I1,I2 : INTEGER; NUM : CHARACTER) IS
+     BEGIN
+          IF A'FIRST /= I1 OR A'LAST /= I2 THEN
+               FAILED ("INCORRECT CATENATION - " & NUM);
+          END IF;
+     END CAT;
+
+BEGIN
+
+     TEST ("C45343A", "CATENATION OF NULL OPERANDS"); 
+
+
+     A1 := (1,2,3,4,5,6,7,8);
+     A2 := A1(1..0) & A1(6..5) & A1(1..8);
+     IF A2 /= (1,2,3,4,5,6,7,8) THEN
+          FAILED ("INCORRECT CATENATION RESULT - 1");
+     END IF;
+
+     A1 := (1,2,3,4,5,6,7,8);
+     A2 := A1(2..8) & A1(1..0) & 9;
+     IF A2 /= (2,3,4,5,6,7,8,9) THEN
+          FAILED ("INCORRECT CATENATION RESULT - 2");
+     END IF;
+
+
+     CAT ( A1(1..0) & A1(IDENT_INT(2)..0), 2, 0, '3' );
+     CAT ( A1(IDENT_INT(1)..0) & A2(2..0), 2, 0, '4' );
+
+     CAT ( A1(1..0) & A1(6..5) & A1(2..8), 2, 8, '5' );
+     CAT ( A1(2..8) & A1(1..0), 2, 8, '6' );
+
+     CAT ( A2(1..0) & A2(6..5) & A2(IDENT_INT(2)..8), 2, 8, '7' );
+     CAT ( A2(IDENT_INT(2)..8) & A2(1..0), 2, 8, '8' );
+
+     RESULT;
+
+END C45343A;