gcc/testsuite/ada/acats/tests/c4/c45624b.ada

   1 -- C45624B.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 --     FOR FLOATING POINT TYPES, CHECK THAT
  27 --     CONSTRAINT_ERROR IS RAISED IF THE RESULT OF A FLOATING POINT
  28 --     EXPONENTIATION IS OUTSIDE THE RANGE OF THE BASE TYPE AND
  29 --     MACHINE_OVERFLOWS IS FALSE.  THIS TESTS DIGITS 6.
  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 COMPATIBILITY
  39
  40 WITH REPORT; USE REPORT;
  41
  42 PROCEDURE C45624B IS
  43
  44      TYPE FLT IS DIGITS 6;
  45
  46      F : FLT;
  47
  48      FUNCTION EQUAL_FLT (ONE, TWO : FLT) RETURN BOOLEAN IS
  49      BEGIN
  50           RETURN ONE = TWO * FLT (IDENT_INT(1));
  51      END EQUAL_FLT;
  52
  53 BEGIN
  54      TEST ("C45624B", "FOR FLOATING POINT TYPES, CHECK THAT " &
  55                       "CONSTRAINT_ERROR IS RAISED " &
  56                       "IF MACHINE_OVERFLOWS IS FALSE.  THIS TESTS " &
  57                       "DIGITS 6");
  58
  59      IF FLT'MACHINE_OVERFLOWS THEN
  60           NOT_APPLICABLE ("THIS TEST IS NOT APPLICABLE DUE TO " &
  61                           "MACHINE_OVERFLOWS BEING TRUE");
  62      ELSE
  63           BEGIN
  64                F := FLT'BASE'LAST**IDENT_INT (2);
  65                COMMENT ("CONSTRAINT_ERROR WAS NOT RAISED WHEN " &
  66                         "MACHINE_OVERFLOWS WAS FALSE");
  67                IF NOT EQUAL_FLT(F,F**IDENT_INT(1)) THEN
  68                     COMMENT ("DON'T OPTIMIZE F");
  69                END IF;
  70           EXCEPTION
  71                WHEN CONSTRAINT_ERROR =>
  72                     COMMENT ("CONSTRAINT_ERROR WAS RAISED WHEN " &
  73                              "MACHINE_OVERFLOWS WAS FALSE");
  74                WHEN OTHERS =>
  75                     FAILED ("AN EXCEPTION OTHER THAN CONSTRAINT_ERROR " &
  76                             "WAS RAISED");
  77           END;
  78      END IF;
  79
  80      RESULT;
  81 END C45624B;