old-autovect-branch/gcc/testsuite/ada/acats/tests/cd/cda201e.ada

   1 -- CDA201E.ADA
   2
   3 --                             Grant of Unlimited Rights
   4 --
   5 --     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
   6 --     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
   7 --     unlimited rights in the software and documentation contained herein.
   8 --     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making
   9 --     this public release, the Government intends to confer upon all
  10 --     recipients unlimited rights  equal to those held by the Government.
  11 --     These rights include rights to use, duplicate, release or disclose the
  12 --     released technical data and computer software in whole or in part, in
  13 --     any manner and for any purpose whatsoever, and to have or permit others
  14 --     to do so.
  15 --
  16 --                                    DISCLAIMER
  17 --
  18 --     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
  19 --     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
  20 --     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
  21 --     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
  22 --     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
  23 --     PARTICULAR PURPOSE OF SAID MATERIAL.
  24 --*
  25 -- OBJECTIVE:
  26 --     CHECK THAT UNCHECKED_CONVERSION CAN BE INSTANTIATED FOR THE
  27 --     CONVERSION OF AN ENUMERATION TYPE WITH A REPRESENTATION CLAUSE TO
  28 --     INTEGER.
  29
  30 -- HISTORY:
  31 --     JET 09/23/88  CREATED ORIGINAL TEST.
  32 --     DHH 05/17/89  CHANGED FROM '.DEP' TEST TO '.ADA' TEST.
  33 --     RJW 02/28/90  ADDED SIZE CLAUSE FOR TYPE STOOGE.
  34 --     LDC 09/20/90  ADDED CHECK FOR CONVERSION FROM INT TO STOOGE,
  35 --                   ADDED COMMENT WHEN SIZES AREN'T EQUAL.
  36
  37 WITH REPORT; USE REPORT;
  38 WITH UNCHECKED_CONVERSION;
  39 PROCEDURE CDA201E IS
  40
  41      TYPE STOOGE IS (CURLY, MOE, LARRY);
  42      FOR STOOGE USE (CURLY => -5, MOE => 13, LARRY => 127);
  43      FOR STOOGE'SIZE USE 8;
  44
  45      TYPE INT IS RANGE -128 .. 127;
  46      FOR INT'SIZE USE 8;
  47
  48      I    : INT := 0;
  49      NAME : STOOGE := CURLY;
  50
  51      FUNCTION E_TO_I IS NEW UNCHECKED_CONVERSION(STOOGE, INT);
  52      FUNCTION I_TO_E IS NEW UNCHECKED_CONVERSION(INT, STOOGE);
  53
  54      FUNCTION ID(E : STOOGE) RETURN STOOGE IS
  55      BEGIN
  56           RETURN STOOGE'VAL(STOOGE'POS(E) + IDENT_INT(0));
  57      END ID;
  58
  59      FUNCTION ID_INT (X : INT) RETURN INT IS
  60           A : INTEGER := IDENT_INT(3);
  61      BEGIN
  62           IF EQUAL (A, IDENT_INT(3)) THEN    -- ALWAYS EQUAL.
  63                RETURN X;                     -- ALWAYS EXECUTED.
  64           END IF;
  65           RETURN 0;                          -- NEVER EXECUTED.
  66      END ID_INT;
  67
  68 BEGIN
  69      TEST ("CDA201E", "CHECK THAT UNCHECKED_CONVERSION CAN BE " &
  70                       "INSTANTIATED FOR THE CONVERSION OF AN " &
  71                       "ENUMERATION TYPE WITH A REPRESENTATION " &
  72                       "CLAUSE TO INTEGER");
  73
  74      IF I'SIZE /= NAME'SIZE THEN
  75           COMMENT( "UNCHECKED_CONVERSION MIGHT BE INSTANTIATED WITH " &
  76                    "DIFFERNT SIZES");
  77      END IF;
  78
  79      BEGIN
  80           I := E_TO_I(ID(CURLY));
  81           IF I /= -5 THEN
  82                FAILED ("INCORRECT VALUE OF CURLY: " & INT'IMAGE(I));
  83           END IF;
  84
  85           I := E_TO_I(ID(MOE));
  86           IF I /= 13 THEN
  87                FAILED ("INCORRECT VALUE OF MOE: " & INT'IMAGE(I));
  88           END IF;
  89
  90           I := E_TO_I(ID(LARRY));
  91           IF I /= 127 THEN
  92                FAILED ("INCORRECT VALUE OF LARRY: " & INT'IMAGE(I));
  93           END IF;
  94      EXCEPTION
  95           WHEN OTHERS =>
  96                FAILED ("UNEXPECTED EXCEPTION RAISED BY CONVERSION");
  97      END;
  98
  99      BEGIN     -- 2
 100           NAME := I_TO_E(ID_INT(-5));
 101           IF NAME /= CURLY THEN
 102                FAILED ("INCORRECT VALUE OF -5 : " & STOOGE'IMAGE(NAME));
 103           END IF;
 104
 105           NAME := I_TO_E(ID_INT(13));
 106           IF NAME /= MOE THEN
 107                FAILED ("INCORRECT VALUE OF 13: " & STOOGE'IMAGE(NAME));
 108           END IF;
 109
 110           NAME := I_TO_E(ID_INT(127));
 111           IF NAME /= LARRY THEN
 112                FAILED ("INCORRECT VALUE OF 127: " & STOOGE'IMAGE(NAME));
 113           END IF;
 114      EXCEPTION
 115           WHEN OTHERS =>
 116                FAILED ("UNEXPECTED EXCEPTION RAISED BY CONVERSION - 2");
 117      END;
 118
 119      RESULT;
 120 END CDA201E;