gcc/testsuite/ada/acats/tests/c4/c45531e.ada

   1 -- C45531E.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 THE OPERATOR "*" PRODUCES CORRECT RESULTS
  27 --     FOR MIXED FIXED POINT AND INTEGER TYPES USING 4 SUBTESTS.
  28 --       THIS TEST REQUIRES MIN_WORD_LENGTH = 16.
  29 --       THIS TEST USES VALUES OF DELTA WHICH ARE LESS THAN 0.5.
  30 --
  31 --     TEST CASES ARE:
  32 --       A) INTEGER * FIXED WHEN ALL VALUES ARE MODEL NUMBERS.
  33 --       B) FIXED * INTEGER WHEN ALL VALUES ARE MODEL NUMBERS.
  34 --       C) INTEGER * FIXED FOR NON-MODEL NUMBERS.
  35 --       D) FIXED * INTEGER FOR NON-MODEL NUMBERS.
  36 --
  37 --     REPEAT FOR MINIMUM REQUIRED WORD LENGTHS OF 12, 16, 32 AND 48,
  38 --     WITH RANGE <, =, AND > THAN 1.0 AND
  39 --     WITH DELTA <, =, AND > THAN 1.0.
  40
  41 -- HISTORY:
  42 --     NTW 09/08/86 CREATED ORIGINAL TEST.
  43 --     RJW 11/05/86 REVISED COMMENTS.
  44 --     DHH 01/13/88 ADDED APPLICABILITY CRITERIA AND STANDARD HEADER.
  45 --     BCB 04/27/90 REVISED APPLICABILITY CRITERIA.
  46 --     BCB 10/03/90 REMOVED APPLICABILITY CRITERIA AND N/A => ERROR
  47 --                  LINE.  CHANGED EXTENSION FROM '.DEP' TO '.ADA'.
  48
  49 WITH REPORT;
  50 PROCEDURE C45531E IS
  51
  52      USE REPORT;
  53
  54      MIN_WORD_LENGTH : CONSTANT := 16;
  55      FULL_SCALE      : CONSTANT := 2 ** (MIN_WORD_LENGTH - 1);
  56      FORTH           : CONSTANT := FULL_SCALE / 4;
  57      DEL1            : CONSTANT := 0.5 / FULL_SCALE;
  58      DEL4            : CONSTANT := 4.0 * DEL1;
  59      TYPE FX_0P5 IS DELTA DEL1 * 1 RANGE -0.5 .. 0.5 - DEL1 * 1;
  60      TYPE FX_1   IS DELTA DEL1 * 2 RANGE -1.0 .. 1.0 - DEL1 * 2;
  61      TYPE FX_2   IS DELTA DEL1 * 4 RANGE -2.0 .. 2.0 - DEL1 * 4;
  62
  63 BEGIN TEST ("C45531E", "MIXED FIXED POINT AND INTEGER ""*"" "
  64                      & "FOR RANGE <, =, > 1.0");
  65
  66      --------------------------------------------------
  67
  68      -- CASE A) INTEGER * FIXED WHEN ALL VALUES ARE MODEL NUMBERS.
  69
  70 A:   DECLARE
  71           A              : INTEGER := 0;
  72           B              : FX_0P5  := 0.0;
  73           RESULT_VALUE   : FX_0P5  := 0.0;
  74           LOWEST_ACCEPTABLE_VALUE  : FX_0P5 := FX_0P5 (0.375);
  75           HIGHEST_ACCEPTABLE_VALUE : FX_0P5 := FX_0P5 (0.375);
  76      BEGIN
  77           IF EQUAL (3, 3) THEN
  78                A := 3;
  79                B := FX_0P5 (0.125);               -- A MODEL NUMBER
  80           END IF;
  81
  82           RESULT_VALUE := A * B;
  83
  84           IF    (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
  85              OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
  86                FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
  87                     &  "FOR INTEGER * FIXED "
  88                     &  "WHEN ALL VALUES ARE MODEL NUMBERS");
  89           END IF;
  90      END A;
  91
  92      --------------------------------------------------
  93
  94      -- CASE B) FIXED * INTEGER WHEN ALL VALUES ARE MODEL NUMBERS.
  95
  96 B:   DECLARE
  97           A              : FX_1    := 0.0;
  98           B              : INTEGER := 0;
  99           RESULT_VALUE   : FX_1    := 0.0;
 100           LOWEST_ACCEPTABLE_VALUE  : FX_1 := FX_1 (0.75);
 101           HIGHEST_ACCEPTABLE_VALUE : FX_1 := FX_1 (0.75);
 102      BEGIN
 103           IF EQUAL (3, 3) THEN
 104                A := FX_1 (0.125);                 -- A MODEL NUMBER
 105                B := 6;
 106           END IF;
 107
 108           RESULT_VALUE := A * B;
 109
 110           IF    (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
 111              OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
 112                FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
 113                     &  "FOR FIXED * INTEGER "
 114                     &  "WHEN ALL VALUES ARE MODEL NUMBERS");
 115           END IF;
 116      END B;
 117
 118      --------------------------------------------------
 119
 120      -- CASE C) INTEGER * FIXED FOR NON-MODEL NUMBERS.
 121
 122 C:   DECLARE
 123           A               : INTEGER   := 0;
 124           B               : FX_2      := 0.0;
 125           RESULT_VALUE    : FX_2      := 0.0;
 126           LOW_COUNT       : CONSTANT  := (3 * (FORTH + 0) );
 127           HIGH_COUNT      : CONSTANT  := (3 * (FORTH + 1) );
 128           LOWEST_ACCEPTABLE_VALUE     :  FX_2
 129                                       := FX_2 (DEL4 * LOW_COUNT );
 130           HIGHEST_ACCEPTABLE_VALUE    :  FX_2
 131                                       := FX_2 (DEL4 * HIGH_COUNT);
 132      BEGIN
 133           IF EQUAL (3, 3) THEN        -- B NOT A MODEL NUMBER
 134                A := 3;
 135                B := FX_2 (DEL4 * FORTH + DEL1 );
 136           END IF;
 137
 138           RESULT_VALUE := A * B;
 139
 140           IF    (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
 141              OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
 142                FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
 143                     &  "FOR INTEGER * FIXED FOR NON-MODEL NUMBERS");
 144
 145           END IF;
 146      END C;
 147
 148      --------------------------------------------------
 149
 150      -- CASE D) FIXED * INTEGER FOR NON-MODEL NUMBERS.
 151
 152 D:   DECLARE
 153           A               : FX_2      := 0.0;
 154           B               : INTEGER   := 0;
 155           RESULT_VALUE    : FX_2      := 0.0;
 156           LOW_COUNT       : CONSTANT  := (3 * (FORTH + 0) );
 157           HIGH_COUNT      : CONSTANT  := (3 * (FORTH + 1) );
 158           LOWEST_ACCEPTABLE_VALUE     :  FX_2
 159                                       := FX_2 (DEL4 * LOW_COUNT );
 160           HIGHEST_ACCEPTABLE_VALUE    :  FX_2
 161                                       := FX_2 (DEL4 * HIGH_COUNT);
 162      BEGIN
 163           IF EQUAL (3, 3) THEN        -- A NOT A MODEL NUMBER
 164                A := FX_2 (DEL4 * FORTH + DEL1 );
 165                B := 3;
 166           END IF;
 167
 168           RESULT_VALUE := A * B;
 169
 170           IF    (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
 171              OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
 172                FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
 173                     &  "FOR FIXED * INTEGER FOR NON-MODEL NUMBERS");
 174           END IF;
 175      END D;
 176
 177      --------------------------------------------------
 178
 179
 180      RESULT;
 181
 182 END C45531E;