c87b04b.ada

用于进行gcc测试

-- C87B04B.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 OVERLOADING RESOLUTION USES THE RULE THAT:

--      IN AN ACCURACY CONSTRAINT OF A SUBTYPE INDICATION, THE
--      EXPRESSIONS FOR THE LOWER AND UPPER BOUNDS MUST BE COMPATIBLE
--      WITH THE SUBTYPE'S EXPLICIT TYPEMARK.

-- HISTORY:
--      TRH 06/29/82  CREATED ORIGINAL TEST.
--      BCB 11/12/87  CHANGED HEADER TO STANDARD FORMAT.  CORRECTED
--                    CONSTRAINT ERRORS.
--      KAS 11/24/95  DELETED SUBTYPE DIGITS CONSTRAINT

WITH REPORT; USE REPORT;

PROCEDURE C87B04B IS

     TYPE EXACT IS DIGITS 5     RANGE -1.0 .. 1.0;
     TYPE HEX IS DELTA  2.0 ** (-4) RANGE -1.0 .. 1.0;

     FUNCTION F1 RETURN EXACT IS
     BEGIN
          RETURN 0.0;
     END F1;

     FUNCTION F1 RETURN FLOAT IS
     BEGIN
          FAILED ("RESOLUTION INCORRECT - ACCURACY CONSTRAINT OF " &
                  "SUBTYPE INDICATION - F1");
          RETURN 0.0;
     END F1;

     FUNCTION "+" (X : INTEGER) RETURN HEX IS
     BEGIN
          RETURN 0.0;
     END "+";

     FUNCTION "+" (X : INTEGER) RETURN FLOAT IS
     BEGIN
          FAILED ("RESOLUTION INCORRECT - ACCURACY CONSTRAINT OF " &
                  "SUBTYPE INDICATION - +");
          RETURN 0.0;
     END "+";

BEGIN
     TEST ("C87B04B","OVERLOADED EXPRESSIONS IN ACCURACY CONTRAINTS" &
           " OF FLOATING/FIXED POINT SUBTYPE INDICATIONS");

     DECLARE
          SUBTYPE CLOSE IS EXACT RANGE -1.0 .. F1;
          SUBTYPE BIN IS HEX DELTA 2.0 ** (-1) RANGE "+" (0) .. 0.5;

     BEGIN
          NULL;
     END;

     RESULT;
END C87B04B;