gcc/testsuite/ada/acats/tests/c4/c45531k.ada

   1 -- C45531K.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 = 32.
  29 --       THIS TEST USES VALUES OF DELTA WHICH ARE GREATER THAN OR
  30 --       EQUAL TO 0.5.
  31 --
  32 --     TEST CASES ARE:
  33 --       A) INTEGER * FIXED WHEN ALL VALUES ARE MODEL NUMBERS.
  34 --       B) FIXED * INTEGER WHEN ALL VALUES ARE MODEL NUMBERS.
  35 --       C) INTEGER * FIXED FOR NON-MODEL NUMBERS.
  36 --       D) FIXED * INTEGER FOR NON-MODEL NUMBERS.
  37 --
  38 --     REPEAT FOR MINIMUM REQUIRED WORD LENGTHS OF 12, 16, 32 AND 48,
  39 --     WITH RANGE <, =, AND > THAN 1.0 AND
  40 --     WITH DELTA <, =, AND > THAN 1.0.
  41
  42 -- HISTORY:
  43 --     NTW 09/08/86 CREATED ORIGINAL TEST.
  44 --     RJW 11/05/86 REVISED COMMENTS.
  45 --     DHH 01/13/88 ADDED APPLICABILITY CRITERIA AND STANDARD HEADER.
  46 --     BCB 04/27/90 REVISED APPLICABILITY CRITERIA.
  47 --     BCB 10/03/90 REMOVED APPLICABILITY CRITERIA AND N/A => ERROR
  48 --                  LINE.  CHANGED EXTENSION FROM '.DEP' TO '.ADA'.
  49
  50
  51 WITH REPORT;
  52 PROCEDURE C45531K IS
  53
  54      USE REPORT;
  55
  56      MIN_WORD_LENGTH : CONSTANT := 32;
  57      FULL_SCALE      : CONSTANT := 2 ** (MIN_WORD_LENGTH - 1);
  58      FORTH           : CONSTANT := FULL_SCALE / 4;
  59      RNG1            : CONSTANT := FULL_SCALE * 0.5;
  60      TYPE FX_0P5  IS DELTA 0.5 RANGE -RNG1 * 1 .. RNG1 * 1 - 0.5;
  61      TYPE FX_1    IS DELTA 1.0 RANGE -RNG1 * 2 .. RNG1 * 2 - 1.0;
  62      TYPE FX_RNG1 IS DELTA RNG1
  63                     RANGE -RNG1 * FULL_SCALE .. RNG1 * (FULL_SCALE - 1);
  64
  65 BEGIN TEST ("C45531K", "MIXED FIXED POINT AND INTEGER ""*"" "
  66                     &  "FOR DELTA <, =, > 1.0");
  67
  68      --------------------------------------------------
  69
  70      -- CASE A) INTEGER * FIXED WHEN ALL VALUES ARE MODEL NUMBERS.
  71
  72 A:   DECLARE
  73           A              : INTEGER := 0;
  74           B              : FX_0P5  := 0.0;
  75           RESULT_VALUE   : FX_0P5  := 0.0;
  76           LOWEST_ACCEPTABLE_VALUE  : FX_0P5 := FX_0P5 (7.5);
  77           HIGHEST_ACCEPTABLE_VALUE : FX_0P5 := FX_0P5 (7.5);
  78      BEGIN
  79           IF EQUAL (3, 3) THEN
  80                A := 3;
  81                B := FX_0P5 (2.5);               -- A MODEL NUMBER
  82           END IF;
  83
  84           RESULT_VALUE := A * B;
  85
  86           IF    (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
  87              OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
  88                FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
  89                     &  "FOR INTEGER * FIXED "
  90                     &  "WHEN ALL VALUES ARE MODEL NUMBERS");
  91           END IF;
  92      END A;
  93
  94      --------------------------------------------------
  95
  96      -- CASE B) FIXED * INTEGER WHEN ALL VALUES ARE MODEL NUMBERS.
  97
  98 B:   DECLARE
  99           A              : FX_1    := 0.0;
 100           B              : INTEGER := 0;
 101           RESULT_VALUE   : FX_1    := 0.0;
 102           LOWEST_ACCEPTABLE_VALUE  : FX_1 := FX_1 (3 * FORTH);
 103           HIGHEST_ACCEPTABLE_VALUE : FX_1 := FX_1 (3 * FORTH);
 104      BEGIN
 105           IF EQUAL (3, 3) THEN
 106                A := FX_1 (FULL_SCALE / 8);        -- A MODEL NUMBER
 107                B := 6;
 108           END IF;
 109
 110           RESULT_VALUE := A * B;
 111
 112           IF    (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
 113              OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
 114                FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
 115                     &  "FOR FIXED * INTEGER "
 116                     &  "WHEN ALL VALUES ARE MODEL NUMBERS");
 117           END IF;
 118      END B;
 119
 120      --------------------------------------------------
 121
 122      -- CASE C) INTEGER * FIXED FOR NON-MODEL NUMBERS.
 123
 124 C:   DECLARE
 125           A              : INTEGER := 0;
 126           B              : FX_RNG1 := 0.0;
 127           RESULT_VALUE   : FX_RNG1 := 0.0;
 128           LOW_COUNT     : CONSTANT := (3 * (FORTH + 0) );
 129           HIGH_COUNT    : CONSTANT := (3 * (FORTH + 1) );
 130           LOWEST_ACCEPTABLE_VALUE  :  FX_RNG1
 131                                    := FX_RNG1 (RNG1 * LOW_COUNT );
 132           HIGHEST_ACCEPTABLE_VALUE :  FX_RNG1
 133                                    := FX_RNG1 (RNG1 * HIGH_COUNT);
 134      BEGIN
 135           IF EQUAL (3, 3) THEN        -- B NOT A MODEL NUMBER
 136                A := 3;
 137                B := FX_RNG1 (RNG1 * FORTH + 0.5);
 138           END IF;
 139
 140           RESULT_VALUE := A * B;
 141
 142           IF    (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
 143              OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
 144                FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
 145                     &  "FOR INTEGER * FIXED FOR NON-MODEL NUMBERS");
 146
 147           END IF;
 148      END C;
 149
 150      --------------------------------------------------
 151
 152      -- CASE D) FIXED * INTEGER FOR NON-MODEL NUMBERS.
 153
 154 D:   DECLARE
 155           A              : FX_RNG1 := 0.0;
 156           B              : INTEGER := 0;
 157           RESULT_VALUE   : FX_RNG1 := 0.0;
 158           LOW_COUNT     : CONSTANT := (3 * (FORTH + 0) );
 159           HIGH_COUNT    : CONSTANT := (3 * (FORTH + 1) );
 160           LOWEST_ACCEPTABLE_VALUE  :  FX_RNG1
 161                                    := FX_RNG1 (RNG1 * LOW_COUNT );
 162           HIGHEST_ACCEPTABLE_VALUE :  FX_RNG1
 163                                    := FX_RNG1 (RNG1 * HIGH_COUNT);
 164      BEGIN
 165           IF EQUAL (3, 3) THEN        -- A NOT A MODEL NUMBER
 166                A := FX_RNG1 (RNG1 * FORTH + 0.5);
 167                B := 3;
 168           END IF;
 169
 170           RESULT_VALUE := A * B;
 171
 172           IF    (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
 173              OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
 174                FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
 175                     &  "FOR FIXED * INTEGER FOR NON-MODEL NUMBERS");
 176           END IF;
 177      END D;
 178
 179      --------------------------------------------------
 180
 181
 182      RESULT;
 183
 184 END C45531K;