c35904b.ada

来自「用于进行gcc测试」· ADA 代码 · 共 137 行

-- C35904B.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 INCOMPATIBLE FIXED POINT CONSTRAINTS RAISE
-- CONSTRAINT_ERROR FOR GENERIC FORMAL TYPES.

-- *** NOTE: This test has been modified since ACVC version 1.11 to    -- 9X
-- ***       remove incompatibilities associated with the transition   -- 9X
-- ***       to Ada 9X.                                                -- 9X

-- RJW 6/20/86
-- DWC 07/24/87     -- ADDED NUMERIC_ERROR HANDLERS.
-- JRL 03/30/93 REMOVED NUMERIC_ERROR FROM TEST.
-- EDS 07/16/98 AVOID OPTIMIZATION 

WITH REPORT; USE REPORT;
PROCEDURE C35904B IS

     GENERIC
          TYPE FIX IS DELTA <>;
     PROCEDURE PROC (STR : STRING);

     PROCEDURE PROC (STR : STRING) IS
          SUBTYPE SFIX IS FIX DELTA 0.1 RANGE -1.0 .. 1.0;
          -- DEFINE AN OBJECT OF SUBTYPE SFIX AND USE IT TO AVOID 
          -- OPTIMIZATION OF SUBTYPE
          SFIX_VAR : SFIX := SFIX(IDENT_INT(0));
     BEGIN
          FAILED ("NO EXCEPTION RAISED FOR " & STR & " " &
                  SFIX'IMAGE(SFIX_VAR) );  --USE SFIX_VAR
     END PROC;

BEGIN

     TEST ( "C35904B", "CHECK THAT INCOMPATIBLE FIXED POINT " &
                       "CONSTRAINTS RAISE CONSTRAINT_ERROR " &
                       "FOR GENERIC FORMAL TYPES" );

-- TEST FOR INCORRECT SUBTYPE DEFINITION ON ACCURACY BETWEEN TYPE AND
-- SUBTYPE DEFINITIONS.

     BEGIN

          DECLARE

               TYPE FIX1 IS DELTA 0.5          -- DELTA IS SMALLER FOR
                         RANGE -2.0 .. 2.0;    -- SUBTYPE THEN FOR
                                               -- TYPE.

               PROCEDURE NPROC IS NEW PROC (FIX1);

          BEGIN
               NPROC ( "INCOMPATIBLE DELTA" );
          END;

     EXCEPTION
          WHEN CONSTRAINT_ERROR =>
               NULL;
          WHEN OTHERS =>
               FAILED ("INCORRECT EXCEPTION RAISED WHILE CHECKING " &
                       "DELTA CONSTRAINT");
     END;

-- TEST THAT CONSTRAINT_ERROR IS RAISED
-- FOR A RANGE VIOLATION.

     BEGIN

          DECLARE

               TYPE FIX2 IS DELTA 0.1 RANGE 0.0 .. 2.0; -- LOWER
                                                        -- BOUND.

               PROCEDURE NPROC IS NEW PROC (FIX2);

          BEGIN
               NPROC ("FIXED POINT LOWER BOUND CONSTRAINT VIOLATION");
          END;

     EXCEPTION
          WHEN CONSTRAINT_ERROR =>
               COMMENT ("CONSTRAINT_ERROR RAISED FOR " &
                        "LOWER BOUND VIOLATION");
          WHEN OTHERS =>
               FAILED ("INCORRECT EXCEPTION RAISED WHILE CHECKING " &
                       "FIXED POINT LOWER BOUND CONSTRAINT");
     END;

-- TEST THAT CONSTRAINT_ERROR IS RAISED
-- FOR A RANGE VIOLATION.

     BEGIN

          DECLARE

               TYPE FIX3 IS DELTA 0.1 RANGE -2.0 .. 0.0;  -- UPPER
                                                          -- BOUND.

               PROCEDURE NPROC IS NEW PROC (FIX3);
          BEGIN
               NPROC ("FIXED POINT UPPER BOUND CONSTRAINT VIOLATION");
          END;

     EXCEPTION
          WHEN CONSTRAINT_ERROR =>
               COMMENT ("CONSTRAINT_ERROR RAISED FOR " &
                        "UPPER BOUND VIOLATION");
          WHEN OTHERS =>
               FAILED ("INCORRECT EXCEPTION RAISED WHILE CHECKING " &
                       "FIXED POINT UPPER BOUND CONSTRAINT");
     END;

     RESULT;

END C35904B;