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-- C87B18A.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 OVERLOADING RESOLUTION USES THE RULE THAT:

--

-- THE TYPES OF THE EXPRESSIONS IN A DISCRIMINANT CONSTRAINT IN

-- A SUBTYPE INDICATION MUST MATCH THE DISCRIMINANT'S EXPLICIT

-- TYPEMARK.

-- TRH  1 JULY 82

WITH REPORT; USE REPORT;

PROCEDURE C87B18A IS

     ERR : BOOLEAN := FALSE;

     FUNCTION F1 RETURN INTEGER IS

     BEGIN

          RETURN 1;

     END F1;

     FUNCTION F1 RETURN FLOAT IS

     BEGIN

          ERR := TRUE;

          RETURN 0.0;

     END F1;

     FUNCTION F2 RETURN BOOLEAN IS

     BEGIN

          RETURN TRUE;

     END F2;

     FUNCTION F2 RETURN STRING IS

     BEGIN

          ERR := TRUE;

          RETURN "STRING";

     END F2;

BEGIN

     TEST ("C87B18A","OVERLOADED EXPRESSIONS IN DISCRIMINANT " &

           "CONSTRAINTS");

     DECLARE

          TYPE REC (X : INTEGER := 0; Y : BOOLEAN := TRUE) IS

               RECORD

                    NULL;

               END RECORD;

          R1 : REC (F1, F2);

          R2 : REC (Y => F2, X => F1);

     BEGIN

          IF ERR THEN

               FAILED ("RESOLUTION INCORRECT - DISCRIMINANT " &

                       "CONSTRAINT MUST MATCH DISCRIMINANT TYPE");

          END IF;

     END;

     RESULT;

END C87B18A;