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-- C84009A.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.

--*

-- OBJECTIVE:

--     CHECK THAT A USE CLAUSE MAKES AN IMPLICITLY OR EXPLICITLY

--     DECLARED OPERATOR DIRECTLY VISIBLE IF NO HOMOGRAPH OF THE

--     OPERATOR IS ALREADY DIRECTLY VISIBLE.

-- HISTORY:

--     JET 03/10/88  CREATED ORIGINAL TEST.

WITH REPORT; USE REPORT;

PROCEDURE C84009A IS

     TYPE INT IS NEW INTEGER RANGE -100 .. 100;

     PACKAGE PACK IS

          FUNCTION "+" (LEFT : INTEGER; RIGHT : INT) RETURN INTEGER;

          FUNCTION "-" (LEFT, RIGHT : INT) RETURN INT;

          FUNCTION "-" (RIGHT : INT) RETURN INTEGER;

          FUNCTION "+" (RIGHT : INT) RETURN INTEGER;

     END PACK;

     FUNCTION "+" (RIGHT : INT) RETURN INTEGER IS

     BEGIN

          RETURN INTEGER'(1) + INTEGER(RIGHT);

     END "+";

     PACKAGE BODY PACK IS

          FUNCTION "+" (LEFT : INTEGER; RIGHT : INT) RETURN INTEGER IS

          BEGIN

               RETURN LEFT + INTEGER(RIGHT);

          END "+";

          FUNCTION "-" (LEFT, RIGHT : INT) RETURN INT IS

          BEGIN

               FAILED ("BINARY ""-"" ALREADY VISIBLE FOR TYPE INT");

               RETURN LEFT + (-RIGHT);

          END "-";

          FUNCTION "-" (RIGHT : INT) RETURN INTEGER IS

          BEGIN

               RETURN INTEGER'(0) - INTEGER(RIGHT);

          END "-";

          FUNCTION "+" (RIGHT : INT) RETURN INTEGER IS

          BEGIN

               FAILED ("UNARY ""+"" ALREADY VISIBLE FOR TYPE INT");

               RETURN INTEGER'(0) + INTEGER(RIGHT);

          END "+";

     END PACK;

     USE PACK;

BEGIN

     TEST ("C84009A", "CHECK THAT A USE CLAUSE MAKES AN IMPLICITLY " &

                      "OR EXPLICITLY DECLARED OPERATOR DIRECTLY " &

                      "VISIBLE IF NO HOMOGRAPH OF THE OPERATOR IS " &

                      "ALREADY DIRECTLY VISIBLE");

     IF INTEGER'(10) + INT'(10) /= IDENT_INT(20) THEN

          FAILED ("INCORRECT RESULT FROM BINARY ""+""");

     END IF;

     IF INT'(5) - INT'(3) /= INT'(2) THEN

          FAILED ("INCORRECT RESULT FROM BINARY ""-""");

     END IF;

     IF -INT'(20) /= IDENT_INT(-INTEGER'(20)) THEN

          FAILED ("INCORRECT RESULT FROM UNARY ""-""");

     END IF;

     IF +INT'(20) /= IDENT_INT(+INTEGER'(21)) THEN

          FAILED ("INCORRECT RESULT FROM UNARY ""+""");

     END IF;

     RESULT;

END C84009A;