gcc/testsuite/ada/acats/tests/c3/c35904a.ada

   1 -- C35904A.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 INCOMPATIBLE FIXED POINT CONSTRAINTS RAISE
  27 --     APPROPRIATE EXCEPTIONS.
  28
  29
  30 -- HISTORY:
  31 --     RJK 05/17/83  CREATED ORIGINAL TEST.
  32 --     PWB 02/03/86  CORRECTED TEST ERROR:
  33 --                   ADDED POSSIBLITY OF NUMERIC_ERROR
  34 --                   IN DECLARATIONS OF SFX3 AND SFX4.
  35 --     BCB 10/21/87  CHANGED HEADER TO STANDARD FORMAT.  CHANGED RANGE
  36 --                   CONSTRAINTS OF SUBTYPE SFX1.  CHANGED UPPER BOUND
  37 --                   OF THE CONSTRAINT OF SFX4.  CHANGED RANGE
  38 --                   CONSTRAINTS OF FIX.
  39 --     JRL 03/30/93  REMOVED NUMERIC_ERROR FROM TEST.
  40 --     PWN 10/27/95  REMOVED OUT OF RANGE STATIC VALUE CHECKS.
  41 --     EDS 07/16/98  AVOID OPTIMIZATION
  42
  43 WITH REPORT; USE REPORT;
  44 PROCEDURE C35904A IS
  45
  46      TYPE FIX IS DELTA 0.5 RANGE -3.0 .. 3.0;
  47
  48 BEGIN
  49
  50      TEST ("C35904A", "CHECK THAT INCOMPATIBLE FIXED POINT " &
  51                       "CONSTRAINTS RAISE APPROPRIATE EXCEPTION");
  52
  53 -- TEST FOR CORRECT SUBTYPE DEFINITION FOR COMPATIBILITY BETWEEN TYPE
  54 -- AND SUBTYPE CONSTRAINTS.
  55
  56      BEGIN
  57
  58           DECLARE
  59
  60                SUBTYPE SFX1 IS FIX DELTA 1.0 RANGE 0.0 .. 2.0;   -- OK.
  61                SFX1_VAR : SFX1;
  62
  63           BEGIN
  64                SFX1_VAR := 1.0;
  65           END;
  66
  67      EXCEPTION
  68           WHEN CONSTRAINT_ERROR =>
  69                 FAILED ("FIXED POINT CONSTRAINTS ARE NOT IN ERROR");
  70           WHEN OTHERS =>
  71                 FAILED ("EXCEPTION SHOULD NOT BE RAISED WHILE " &
  72                         "CHECKING DELTA CONSTRAINT");
  73      END;
  74
  75 -- TEST FOR INCORRECT SUBTYPE DEFINITION ON ACCURACY BETWEEN TYPE AND
  76 -- SUBTYPE DEFINITIONS.
  77
  78      BEGIN
  79
  80           DECLARE
  81
  82                SUBTYPE SFX IS FIX DELTA 0.1;  -- DELTA IS SMALLER FOR
  83                                               -- SUBTYPE THAN FOR TYPE.
  84                -- DEFINE AN OBJECT OF SUBTYPE SFX AND USE IT TO AVOID
  85                -- OPTIMIZATION OF SUBTYPE
  86                SFX_VAR : SFX := FIX(IDENT_INT(1));
  87
  88           BEGIN
  89                FAILED ("NO EXCEPTION RAISED FOR INCOMPATABLE DELTA " &
  90                        FIX'IMAGE(SFX_VAR) );  --USE SFX_VAR
  91           END;
  92
  93      EXCEPTION
  94           WHEN CONSTRAINT_ERROR =>
  95                NULL;
  96           WHEN OTHERS =>
  97                FAILED ("INCORRECT EXCEPTION RAISED WHILE CHECKING " &
  98                        "DELTA CONSTRAINT");
  99      END;
 100
 101      RESULT;
 102
 103 END C35904A;