gcc/testsuite/ada/acats/tests/c5/c55b04a.ada

   1 --  C55B04A.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 -- CHECK THAT A LOOP IS NOT ENTERED IF THE LOWER BOUND OF THE DISCRETE
  26 --   RANGE IS GREATER THAN THE UPPER BOUND, WHETHER REVERSE IS PRESENT
  27 --   OR NOT.
  28
  29 -- CHECK THAT LOOP BOUNDS ARE EVALUATED ONLY ONCE, UPON ENTRY TO
  30 --   THE LOOP.
  31
  32 -- DAS  01/12/81
  33 -- SPS 3/2/83
  34 -- JBG 8/21/83
  35
  36 WITH REPORT;
  37 PROCEDURE C55B04A IS
  38
  39      USE REPORT;
  40
  41      C10 : CONSTANT INTEGER := 10;
  42      I10 : INTEGER;
  43
  44 BEGIN
  45      TEST ( "C55B04A", "CHECK OPERATION OF A FOR LOOP OVER A NULL " &
  46                        "DISCRETE RANGE" );
  47
  48      -- NOTE: EXIT STATEMENTS ARE INCLUDED TO AID IN RECOVERY FROM
  49      --   TEST FAILURE.
  50
  51      -- SUBTESTS INVOLVING STATIC BOUNDS:
  52
  53      FOR I IN 10..1 LOOP
  54           FAILED ( "LOOPING OVER NULL RANGE 10..1" );
  55           EXIT;
  56      END LOOP;
  57
  58      FOR I IN REVERSE INTEGER RANGE -1..-10 LOOP
  59           FAILED ( "LOOPING OVER NULL RANGE -1..-10" );
  60           EXIT;
  61      END LOOP;
  62
  63      FOR I IN (C10 + 3)..(-3 * C10 + 27) LOOP     -- 13..-3
  64           FAILED ("LOOPING OVER NULL RANGE (C10 + 3)..(-3 * C10 + 27)");
  65           EXIT;
  66      END LOOP;
  67
  68
  69      -- SUBTESTS INVOLVING DYNAMIC BOUNDS:
  70
  71      I10 := IDENT_INT(10);
  72
  73      FOR I IN REVERSE I10..(I10-1) LOOP           -- 10..9
  74           FAILED ( "LOOPING OVER NULL RANGE I10..(I10-1)");
  75           EXIT;
  76      END LOOP;
  77
  78
  79      FOR I IN (C10 - I10)..(I10 - 11) LOOP        -- 0..-1
  80           FAILED ( "LOOPING OVER NULL RANGE (C10 - I10)..(I10 - 11)" );
  81           EXIT;
  82      END LOOP;
  83
  84
  85      -- SUBTEST OF BOUNDS EVALUTION ONLY AT ENTRY:
  86
  87      FOR I IN 1..I10 LOOP
  88           I10 := I10 - 1;
  89      END LOOP;
  90      IF (I10 /= 0) THEN
  91           FAILED ( "LOOP BOUNDS NOT FIXED AT LOOP ENTRY" );
  92      END IF;
  93
  94      RESULT;
  95
  96 END C55B04A;