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-- C58005A.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 WHEN A FUNCTION IS READY TO RETURN CONTROL TO ITS INVOKER
-- THE CONSTRAINTS ON THE RETURN VALUES ARE CHECKED, AND THAT
-- CONSTRAINT ERROR IS THEN RAISED IF AND ONLY IF THE CONSTRAINTS
-- ARE NOT SATISFIED.
-- THIS TEST CHECKS THAT THE EXCEPTION IS RAISED UNDER THE APPROPRIATE
-- CONDITIONS; IT ALSO CHECKS THE IDENTITY OF THE EXCEPTION. THE
-- PRECISE MOMENT AND PLACE THE EXCEPTION IS RAISED IS TESTED
-- ELSEWHERE.
-- RM 05/14/81
-- SPS 10/26/82
WITH REPORT;
PROCEDURE C58005A IS
USE REPORT ;
INTVAR : INTEGER ;
BEGIN
TEST( "C58005A" , "CHECK THAT EXCEPTIONS ARE RAISED BY A RETURN" &
" STATEMENT IF AND ONLY IF THE CONSTRAINTS ARE" &
" VIOLATED" );
DECLARE
SUBTYPE I1 IS INTEGER RANGE -10..90;
SUBTYPE I2 IS INTEGER RANGE 1..10;
FUNCTION FN1( X : I1 )
RETURN I2 IS
BEGIN
RETURN 0 ;
END FN1 ;
FUNCTION FN2( X : I1 )
RETURN I2 IS
BEGIN
RETURN X + IDENT_INT(0) ;
END FN2 ;
FUNCTION FN3( X : I1 )
RETURN I2 IS
HUNDRED : INTEGER RANGE -100..100 := IDENT_INT(100) ;
BEGIN
RETURN HUNDRED - 90 ;
END FN3 ;
BEGIN
INTVAR := 0 ;
BEGIN
INTVAR := FN1( 0 ) + INTVAR ; -- EXCEPTION.
FAILED( "EXCEPTION NOT RAISED - 1" );
EXCEPTION
WHEN CONSTRAINT_ERROR => INTVAR := INTVAR + 10 ;
WHEN OTHERS => FAILED( "WRONG EXCEPTION RAISED - 1" ) ;
END ;
BEGIN
INTVAR := FN2( 1 ) + INTVAR ; -- 10+1=11 -- NO EXCEPTION.
INTVAR := INTVAR + 100 ; -- 11+100=111
EXCEPTION
WHEN OTHERS => FAILED( "EXCEPTION RAISED - 2" ) ;
END ;
BEGIN
INTVAR := FN2(11 ) + INTVAR ; -- EXCEPTION.
FAILED( "EXCEPTION NOT RAISED - 3" );
EXCEPTION
WHEN CONSTRAINT_ERROR => INTVAR := INTVAR + 10 ; -- 121
WHEN OTHERS => FAILED( "WRONG EXCEPTION RAISED - 3" ) ;
END ;
BEGIN
INTVAR := FN3( 0 ) + INTVAR ;--121+10=131 --NO EXCEPTION.
INTVAR := INTVAR + 1000 ;-- 131+1000=1131
EXCEPTION
WHEN OTHERS => FAILED( "EXCEPTION RAISED - 4" ) ;
END ;
END ;
IF INTVAR /= 1131 THEN
FAILED("WRONG FLOW OF CONTROL" );
END IF;
RESULT ;
END C58005A;
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