cb4005a.ada

来自「linux下编程用 编译软件」· ADA 代码 · 共 67 行

-- CB4005A.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 EXCEPTIONS PROPAGATED OUT OF A HANDLER ARE PROPAGATED
-- OUTSIDE THE ENCLOSING UNIT.

-- DAT 4/15/81
-- SPS 3/28/83

WITH REPORT; USE REPORT;

PROCEDURE CB4005A IS

     E , F : EXCEPTION;

     B : BOOLEAN := FALSE;

     PROCEDURE P IS
     BEGIN
          RAISE E;
     EXCEPTION
          WHEN F => FAILED ("WRONG HANDLER 1");
          WHEN E =>
               IF B THEN
                    FAILED ("WRONG HANDLER 2");
               ELSE
                    B := TRUE;
                    RAISE F;
               END IF;
     END P;

BEGIN
     TEST ("CB4005A", "EXCEPTIONS FROM HANDLERS ARE PROPAGATED " & 
           "OUTSIDE");

     BEGIN
          P;
          FAILED ("EXCEPTION NOT PROPAGATED 1");
     EXCEPTION
          WHEN F => NULL;
          WHEN OTHERS => FAILED ("WRONG HANDLER 3");
     END;

     RESULT;
END CB4005A;