Subversion Repositories openrisc

-- C87B24B.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 RANGE BOUNDS FOR A SLICE MUST BE DISCRETE AND OF THE SAME BASE

-- TYPE AS THE ARRAY INDEX.

-- TRH  15 JULY 82

WITH REPORT; USE REPORT;

PROCEDURE C87B24B IS

     TYPE PIECE IS ARRAY (INTEGER RANGE <>) OF INTEGER;

     PI  : PIECE (1 .. 8) := (3, 1, 4, 1, 5, 9, 2, 6);

     S1  : PIECE (1 .. 3);

     S2  : PIECE (4 .. 8);

     ERR : BOOLEAN := FALSE;

     FUNCTION F1 (X : INTEGER) RETURN INTEGER IS

     BEGIN

          RETURN X;

     END F1;

     FUNCTION F1 (X : INTEGER) RETURN FLOAT IS

     BEGIN

          ERR := TRUE;

          RETURN 0.0;

     END F1;

     FUNCTION F2 (X : INTEGER) RETURN INTEGER IS

     BEGIN

          RETURN X;

     END F2;

     FUNCTION F2 (X :INTEGER) RETURN CHARACTER IS

     BEGIN

          ERR := TRUE;

          RETURN 'A';

     END F2;

BEGIN

     TEST ("C87B24B","OVERLOADING RESOLUTION OF RANGE " &

           "CONSTRAINTS FOR SLICES");

     DECLARE

          FUNCTION "+" (X : INTEGER) RETURN INTEGER

               RENAMES F1;

          FUNCTION "+" (X : INTEGER) RETURN FLOAT

               RENAMES F1;

          FUNCTION "-" (X : INTEGER) RETURN INTEGER

               RENAMES F2;

          FUNCTION "-" (X : INTEGER) RETURN CHARACTER

               RENAMES F2;

     BEGIN

          S1 := PI ("+" (3) .. "-" (5));

          S1 := PI (F2  (2) .. "+" (4));

          S1 := PI ("-" (6) .. F1  (8));

          S1 := PI (F2  (1) .. F2  (3));

          S2 := PI (F2  (4) .. F1  (8));

          S2 := PI (2       .. "+" (6));

          S2 := PI (F1  (1) ..       5);

          S2 := PI ("+" (3) .. "+" (7));

          IF ERR THEN

               FAILED (" OVERLOADING RESOLUTION INCORRECT FOR SLICES");

          END IF;

     END;

     RESULT;

END C87B24B;