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+-- C41304A.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 THAT L.R RAISES CONSTRAINT_ERROR WHEN:
+--       L DENOTES AN ACCESS OBJECT HAVING THE VALUE NULL.
+--       L IS A FUNCTION CALL DELIVERING THE ACCESS VALUE NULL.
+
+-- HISTORY:
+--     WKB 08/14/81
+--     JRK 08/17/81
+--     SPS 10/26/82
+--     TBN 03/26/86  PUT THE NON-EXISTENT COMPONENT CASES INTO C41304B.
+--     JET 01/05/88  MODIFIED HEADER FORMAT AND ADDED CODE TO PREVENT
+--                   OPTIMIZATION.
+
+WITH REPORT; USE REPORT;
+PROCEDURE C41304A IS
+
+     TYPE R IS
+          RECORD
+               I : INTEGER;
+          END RECORD;
+
+     TYPE T IS ACCESS R;
+
+BEGIN
+     TEST ("C41304A", "CONSTRAINT_ERROR WHEN L IN L.R DENOTES A NULL " &
+                      "ACCESS OBJECT OR A FUNCTION CALL DELIVERING " &
+                      "NULL");
+
+     --------------------------------------------------
+
+     DECLARE
+
+          A : T := NEW R' (I => 1);
+          J : INTEGER;
+
+     BEGIN
+
+          IF EQUAL (4, 4) THEN
+               A := NULL;
+          END IF;
+
+          J := A.I;
+          FAILED ("CONSTRAINT_ERROR NOT RAISED FOR A NULL ACCESS " &
+                  "OBJECT");
+
+          IF EQUAL (J,J) THEN
+               COMMENT ("NO EXCEPTION RAISED");
+          END IF;
+
+     EXCEPTION
+
+          WHEN CONSTRAINT_ERROR =>
+               NULL;
+          WHEN OTHERS =>
+               FAILED ("WRONG EXCEPTION RAISED FOR A NULL ACCESS " &
+                       "OBJECT");
+
+     END;
+
+     --------------------------------------------------
+
+     DECLARE
+
+          J : INTEGER;
+
+          FUNCTION F RETURN T IS
+          BEGIN
+               IF EQUAL (4, 4) THEN
+                    RETURN NULL;
+               END IF;
+               RETURN NEW R' (I => 2);
+          END F;
+
+     BEGIN
+
+          J := F.I;
+          FAILED ("CONSTRAINT_ERROR NOT RAISED FOR A FUNCTION CALL " &
+                  "DELIVERING A NULL ACCESS VALUE");
+
+          IF EQUAL (J,J) THEN
+               COMMENT ("NO EXCEPTION RAISED");
+          END IF;
+
+     EXCEPTION
+
+          WHEN CONSTRAINT_ERROR =>
+               NULL;
+          WHEN OTHERS =>
+               FAILED ("WRONG EXCEPTION RAISED FOR A FUNCTION CALL " &
+                       "DELIVERING A NULL ACCESS VALUE");
+
+     END;
+
+     RESULT;
+END C41304A;