c35502n.ada

来自「用于进行gcc测试」· ADA 代码 · 共 159 行

-- C35502N.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 'POS' AND 'VAL' YIELD THE CORRECT RESULTS WHEN
--     THE PREFIX IS A FORMAL DISCRETE TYPE WHOSE ACTUAL ARGUMENT IS
--     AN ENUMERATION TYPE, OTHER THAN A BOOLEAN OR A CHARACTER TYPE,
--     WITH AN ENUMERATION REPRESENTATION CLAUSE.

-- HISTORY:
--     RJW 05/27/86
--     DWC 07/22/87  ADDED THE PARAMETER 'N' TO FUNCTION F.
--     PWB 05/11/89  CHANGED EXTENSION FROM '.DEP' TO '.ADA'.

WITH REPORT; USE REPORT;

PROCEDURE C35502N IS

     TYPE ENUM IS (A, BC, ABC, A_B_C, ABCD);
     FOR ENUM USE (A => 1, BC => 4, ABC => 5, A_B_C => 6,
                   ABCD => 8);

     SUBTYPE SUBENUM IS ENUM RANGE A .. BC;

     TYPE NEWENUM IS NEW ENUM;
     SUBTYPE SUBNEW IS NEWENUM RANGE A .. BC;

BEGIN
     TEST ("C35502N", "CHECK THAT 'POS' AND 'VAL' YIELD THE " &
                      "CORRECT RESULTS WHEN THE PREFIX IS A " &
                      "FORMAL DISCRETE TYPE WHOSE ACTUAL ARGUMENT " &
                      "IS AN ENUMERATION TYPE, OTHER THAN A " &
                      "CHARACTER OR A BOOLEAN TYPE, WITH AN " &
                      "ENUMERATION REPRESENTATION CLAUSE" );

     DECLARE

          GENERIC
               TYPE E IS (<>);
               STR : STRING;
          PROCEDURE P;

          PROCEDURE P IS
               SUBTYPE SE IS E RANGE E'VAL(0) .. E'VAL(1);
               POSITION : INTEGER;
          BEGIN

               POSITION := 0;

               FOR E1 IN E LOOP
                    IF SE'POS (E1) /= POSITION THEN
                         FAILED ( "INCORRECT " & STR & "'POS (" &
                                   E'IMAGE (E1) & ")" );
                    END IF;

                    IF SE'VAL (POSITION) /= E1 THEN
                         FAILED ( "INCORRECT " & STR & "'VAL (" &
                                   INTEGER'IMAGE (POSITION) &
                                   ")" );
                    END IF;

                    POSITION := POSITION + 1;
               END LOOP;

               BEGIN
                    IF E'VAL (-1) = E'VAL (1) THEN
                         FAILED ( "NO EXCEPTION RAISED FOR " &
                                   STR & "'VAL (-1) - 1" );
                    ELSE
                         FAILED ( "NO EXCEPTION RAISED FOR " &
                                   STR & "'VAL (-1) - 2" );
                    END IF;
               EXCEPTION
                     WHEN CONSTRAINT_ERROR =>
                         NULL;
               WHEN OTHERS =>
                         FAILED ( "WRONG EXCEPTION RAISED FOR " &
                                   STR & "'VAL (-1)" );
               END;

               BEGIN
                    IF E'VAL (5) = E'VAL (4) THEN
                         FAILED ( "NO EXCEPTION RAISED FOR " &
                                   STR & "'VAL (5) - 1" );
                    ELSE
                         FAILED ( "NO EXCEPTION RAISED FOR " &
                                   STR & "'VAL (5) - 2" );
                    END IF;
               EXCEPTION
                    WHEN CONSTRAINT_ERROR =>
                         NULL;
                    WHEN OTHERS =>
                         FAILED ( "WRONG EXCEPTION RAISED FOR " &
                                   STR & "'VAL (5)" );
               END;
          END P;

          PROCEDURE PE IS NEW P ( ENUM, "ENUM" );
          PROCEDURE PN IS NEW P ( NEWENUM, "NEWENUM" );
     BEGIN
          PE;
          PN;
     END;

     DECLARE
          FUNCTION A_B_C RETURN ENUM IS
          BEGIN
               RETURN ENUM'VAL (IDENT_INT (0));
          END A_B_C;

          GENERIC
               TYPE E IS (<>);
          FUNCTION F (N : INTEGER;
                      E1 : E) RETURN BOOLEAN;

          FUNCTION F (N : INTEGER;
                      E1 : E) RETURN BOOLEAN IS
          BEGIN
               RETURN E'VAL (N) = E1;
          END F;

          FUNCTION FE IS NEW F (ENUM);

     BEGIN

     IF NOT FE (0, A_B_C) THEN
          FAILED ( "INCORRECT VAL FOR A_B_C WHEN HIDDEN " &
                   "BY A FUNCTION" );
     END IF;

     IF NOT FE (3, C35502N.A_B_C) THEN
                    FAILED ( "INCORRECT VAL FOR C35502N.A_B_C" );
     END IF;
     END;

     RESULT;
END C35502N;