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+-- C54A24B.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 NULL SUBTYPE RANGES ARE ACCEPTABLE CASE CHOICES,
+-- WHERE THE BOUNDS ARE BOTH OUT OF THE SUBRANGE'S RANGE, AND
+-- WHERE VACUOUS CHOICES HAVE NON-NULL STATEMENT SEQUENCES.
+-- CHECK THAT AN UNNEEDED OTHERS CLAUSE IS PERMITTED.
+
+-- HISTORY:
+-- DAT 01/29/81 CREATED ORIGINAL TEST.
+-- DHH 10/20/87 SHORTENED LINES CONTAINING MORE THAN 72 CHARACTERS.
+
+WITH REPORT;
+PROCEDURE C54A24B IS
+
+ USE REPORT;
+
+ TYPE C IS NEW CHARACTER RANGE 'A' .. 'D';
+ X : C := 'B';
+
+BEGIN
+ TEST ("C54A24B", "NULL CASE CHOICE SUBRANGES WITH VALUES " &
+ "OUTSIDE SUBRANGE");
+
+ CASE X IS
+ WHEN C RANGE C'BASE'LAST .. C'BASE'FIRST
+ | C RANGE 'Z' .. ' ' => X := 'A';
+ WHEN C => NULL;
+ WHEN OTHERS => X := 'C';
+ END CASE;
+ IF X /= 'B' THEN
+ FAILED ("WRONG CASE EXECUTION");
+ END IF;
+
+ RESULT;
+END C54A24B;