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+-- C37217C.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.
+--*
+-- OBJECTIVE:
+--     CHECK WHETHER THE OPTIONAL COMPATIBILITY CHECK IS
+--     PERFORMED WHEN A DISCRIMINANT CONSTRAINT IS GIVEN FOR AN ACCESS
+--     TYPE - WHEN THERE IS A "LOOP" IN THE DESIGNATED TYPE'S FULL
+--     DECLARATION.
+
+-- HISTORY:
+--     DHH 08/04/88 CREATED ORIGINAL TEST.
+
+WITH REPORT; USE REPORT;
+PROCEDURE C37217C IS
+
+BEGIN  --C37217C BODY
+     TEST ("C37217C", "CHECK WHETHER THE OPTIONAL COMPATIBILITY " &
+                      "CHECK IS PERFORMED WHEN A DISCRIMINANT " &
+                      "CONSTRAINT IS GIVEN FOR AN ACCESS TYPE " &
+                      "- WHEN THERE IS A ""LOOP"" IN THE DESIGNATED " &
+                      "TYPE'S FULL DECLARATION");
+
+     BEGIN
+          DECLARE
+               TYPE R1(D1 : INTEGER);
+               TYPE R2(D2 : INTEGER);
+               TYPE R3(D3 : POSITIVE);
+
+               TYPE ACC_R1 IS ACCESS R1;
+               TYPE ACC_R2 IS ACCESS R2;
+               TYPE ACC_R3 IS ACCESS R3;
+
+               TYPE R1(D1 : INTEGER) IS
+                    RECORD
+                         C1 : ACC_R2(D1);
+                    END RECORD;
+
+               TYPE R2(D2 : INTEGER) IS
+                    RECORD
+                         C2 : ACC_R3(D2);
+                    END RECORD;
+
+               TYPE R3(D3 : POSITIVE) IS
+                    RECORD
+                         C3 : ACC_R1(D3);
+                    END RECORD;
+
+                X1 : ACC_R1(IDENT_INT(0));
+
+          BEGIN
+               COMMENT("OPTIONAL COMPATIBILITY CHECK NOT PERFORMED");
+
+               X1 := NEW R1'(D1 =>IDENT_INT(0),
+                             C1 => NEW R2'(D2 => IDENT_INT(0),
+                                           C2 => NEW R3(IDENT_INT(0))));
+
+               FAILED("CONSTRAINT_ERROR NOT RAISED");
+
+               IF IDENT_INT(X1.C1.C2.D3) /= IDENT_INT(0) THEN
+                    COMMENT("THIS LINE SHOULD NOT PRINT OUT");
+               END IF;
+          EXCEPTION
+               WHEN CONSTRAINT_ERROR =>
+                    NULL;
+               WHEN OTHERS =>
+                    FAILED("UNEXPECTED EXCEPTION RAISED IN " &
+                           "VARIABLE USE - LOOPED");
+          END;
+     EXCEPTION
+          WHEN CONSTRAINT_ERROR =>
+               COMMENT("OPTIONAL COMPATIBILITY CHECK PERFORMED");
+          WHEN OTHERS =>
+               FAILED("UNEXPECTED EXCEPTION RAISED IN " &
+                      "VARIABLE DECLARATION - LOOPED");
+     END;
+
+     RESULT;
+
+END C37217C;  -- BODY