c45413a.ada

来自「linux下编程用 编译软件」· ADA 代码 · 共 75 行

-- C45413A.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 UNARY MINUS YIELDS AND ACCEPTS RESULTS BELONGING TO
-- THE BASE TYPE.

-- JBG 2/24/84
-- JRL 10/13/96 Removed static expressions which contained values outside
--              the base range.

WITH REPORT; USE REPORT;
PROCEDURE C45413A IS

     TYPE INT IS RANGE 1..10;

     X : INT := INT(IDENT_INT(9));

BEGIN

     TEST ("C45413A", "CHECK SUBTYPE OF UNARY PLUS/MINUS");

     BEGIN

          IF -X /= INT'VAL(-9) THEN
               FAILED ("INCORRECT RESULT - UNARY MINUS");
          END IF;

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>
               FAILED ("UNARY MINUS DOES NOT YIELD RESULT " &
                       "BELONGING TO THE BASE TYPE");
          WHEN OTHERS =>
               FAILED ("OTHER EXCEPTION RAISED - 1");
     END;

     BEGIN

          IF -(INT'VAL(-9)) /= 9 THEN
               FAILED ("WRONG RESULT - UNARY MINUS");
          END IF;

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>
               FAILED ("UNARY MINUS ARGUMENT NOT IN BASE TYPE");
          WHEN OTHERS =>
               FAILED ("OTHER EXCEPTION RAISED - 2");
     END;

     RESULT;

END C45413A;