gcc/testsuite/ada/acats/tests/c4/c45534b.ada

   1 -- C45534B.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 CONSTRAINT_ERROR IS RAISED WHEN A
  27 --     FIXED POINT VALUE IS DIVIDED BY ZERO (EITHER AN INTEGER ZERO OR
  28 --     A FIXED POINT ZERO).
  29
  30
  31 -- *** NOTE: This test has been modified since ACVC version 1.11 to    -- 9X
  32 -- ***       remove incompatibilities associated with the transition   -- 9X
  33 -- ***       to Ada 9X.                                                -- 9X
  34 -- ***                                                                 -- 9X
  35
  36 -- HISTORY:
  37 --     BCB 07/14/88  CREATED ORIGINAL TEST.
  38 --     MRM 03/30/93  REMOVED NUMERIC ERROR FOR 9X CONSISTENCY
  39
  40 WITH REPORT; USE REPORT;
  41
  42 PROCEDURE C45534B IS
  43
  44      TYPE FIX IS DELTA 2.0**(-1) RANGE -2.0 .. 2.0;
  45      TYPE FIX2 IS DELTA 2.0**(-1) RANGE -3.0 .. 3.0;
  46
  47      A : FIX := 1.0;
  48      B : FIX;
  49      ZERO : FIX := 0.0;
  50      ZERO2 : FIX2 := 0.0;
  51
  52      FUNCTION IDENT_FLT (ONE, TWO : FIX) RETURN BOOLEAN IS
  53      BEGIN
  54           RETURN ONE = FIX (TWO * FIX (IDENT_INT(1)));
  55      END IDENT_FLT;
  56
  57 BEGIN
  58      TEST ("C45534B", "CHECK THAT CONSTRAINT_ERROR IS RAISED WHEN " &
  59                       "A FIXED POINT VALUE IS " &
  60                       "DIVIDED BY ZERO (EITHER AN INTEGER ZERO OR A " &
  61                       "FIXED POINT ZERO)");
  62
  63      BEGIN
  64           B := A / IDENT_INT (0);
  65           FAILED ("NO EXCEPTION RAISED FOR DIVISION BY INTEGER ZERO");
  66           IF IDENT_FLT (B,B) THEN
  67                COMMENT ("DON'T OPTIMIZE B");
  68           END IF;
  69      EXCEPTION
  70           WHEN CONSTRAINT_ERROR =>
  71                NULL;
  72           WHEN OTHERS =>
  73                FAILED ("OTHER EXCEPTION RAISED");
  74      END;
  75
  76      BEGIN
  77           B := FIX (A / ZERO);
  78           FAILED ("NO EXCEPTION RAISED FOR DIVISION BY FIXED POINT " &
  79                   "ZERO - 1");
  80           IF IDENT_FLT (B,B) THEN
  81                COMMENT ("DON'T OPTIMIZE B");
  82           END IF;
  83      EXCEPTION
  84           WHEN CONSTRAINT_ERROR =>
  85                NULL;
  86           WHEN OTHERS =>
  87                FAILED ("OTHER EXCEPTION RAISED");
  88       END;
  89
  90      BEGIN
  91           B := FIX (A / ZERO2);
  92           FAILED ("NO EXCEPTION RAISED FOR DIVISION BY FIXED POINT " &
  93                   "ZERO - 2");
  94           IF IDENT_FLT (B,B) THEN
  95                COMMENT ("DON'T OPTIMIZE B");
  96           END IF;
  97      EXCEPTION
  98           WHEN CONSTRAINT_ERROR =>
  99                NULL;
 100           WHEN OTHERS =>
 101                FAILED ("OTHER EXCEPTION RAISED");
 102       END;
 103
 104      RESULT;
 105 END C45534B;