Subversion Repositories openrisc

-- 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;