| -- 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; |