1-- C35A05D.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-- CHECK THAT FOR FIXED POINT TYPES THE FORE AND AFT ATTRIBUTES YIELD
26-- THE CORRECT VALUES.
27
28-- CASE D: TYPES TYPICAL OF APPLICATIONS USING FIXED POINT ARITHMETIC.
29
30-- WRG 8/14/86
31
32WITH REPORT; USE REPORT;
33PROCEDURE C35A05D IS
34
35     PI      : CONSTANT := 3.14159_26535_89793_23846;
36     TWO_PI  : CONSTANT := 2 * PI;
37     HALF_PI : CONSTANT := PI / 2;
38
39     MM : CONSTANT := 23;
40
41     -- THE NAME OF EACH TYPE OR SUBTYPE ENDS WITH THAT TYPE'S
42     -- 'MANTISSA VALUE.
43
44     TYPE MICRO_ANGLE_ERROR_M15  IS
45          DELTA 16.0  RANGE -(2.0 ** 19) .. 2.0 ** 19;
46     TYPE TRACK_RANGE_M15        IS
47          DELTA 0.125 RANGE -(2.0 ** 12) .. 2.0 ** 12;
48     TYPE SECONDS_MM             IS
49          DELTA 2.0 ** (8 - MM) RANGE -(2.0 ** 8) .. 2.0 ** 8;
50     TYPE RANGE_CELL_MM          IS
51          DELTA 2.0 ** (-5)
52          RANGE -(2.0 ** (MM - 5) ) .. 2.0 ** (MM - 5);
53
54     TYPE PIXEL_M10 IS DELTA 1.0 / 1024.0 RANGE 0.0 ..  1.0;
55     TYPE RULER_M8  IS DELTA 1.0 / 16.0   RANGE 0.0 .. 12.0;
56
57     TYPE HOURS_M16 IS DELTA   24.0 * 2.0 ** (-15) RANGE 0.0 ..   24.0;
58     TYPE MILES_M16 IS DELTA 3000.0 * 2.0 ** (-15) RANGE 0.0 .. 3000.0;
59
60     TYPE SYMMETRIC_DEGREES_M7  IS
61          DELTA 2.0         RANGE -180.0 .. 180.0;
62     TYPE NATURAL_DEGREES_M15   IS
63          DELTA 2.0 ** (-6) RANGE    0.0 .. 360.0;
64     TYPE SYMMETRIC_RADIANS_M16 IS
65          DELTA     PI * 2.0 ** (-15) RANGE -PI .. PI;
66     TYPE NATURAL_RADIANS_M8    IS
67          DELTA TWO_PI * 2.0 ** ( -7) RANGE 0.0 .. TWO_PI;
68
69     -------------------------------------------------------------------
70
71     SUBTYPE ST_MILES_M8             IS MILES_M16
72          DELTA 3000.0 * 2.0 ** (-15) RANGE 0.0 .. 10.0;
73     SUBTYPE ST_NATURAL_DEGREES_M11  IS NATURAL_DEGREES_M15
74          DELTA 0.25 RANGE 0.0 .. 360.0;
75     SUBTYPE ST_SYMMETRIC_RADIANS_M8 IS SYMMETRIC_RADIANS_M16
76          DELTA HALF_PI * 2.0 ** (-7) RANGE -HALF_PI .. HALF_PI;
77
78     -------------------------------------------------------------------
79
80     PROCEDURE CHECK_FORE_AND_AFT
81         (NAME        : STRING;
82          ACTUAL_FORE : INTEGER; CORRECT_FORE : POSITIVE;
83          ACTUAL_AFT  : INTEGER; CORRECT_AFT  : POSITIVE) IS
84     BEGIN
85          IF ACTUAL_FORE /= IDENT_INT (CORRECT_FORE) THEN
86               FAILED (NAME & "'FORE =" & INTEGER'IMAGE(ACTUAL_FORE) );
87          END IF;
88          IF ACTUAL_AFT /= IDENT_INT (CORRECT_AFT) THEN
89               FAILED (NAME & "'AFT  =" & INTEGER'IMAGE(ACTUAL_AFT) );
90          END IF;
91     END CHECK_FORE_AND_AFT;
92
93BEGIN
94
95     TEST ("C35A05D", "CHECK THAT FOR FIXED POINT TYPES THE FORE AND " &
96                      "AFT ATTRIBUTES YIELD THE CORRECT VALUES - " &
97                      "TYPICAL TYPES");
98
99     CHECK_FORE_AND_AFT ("MICRO_ANGLE_ERROR_M15",
100                                         MICRO_ANGLE_ERROR_M15'FORE, 7,
101                                         MICRO_ANGLE_ERROR_M15'AFT,  1);
102
103     CHECK_FORE_AND_AFT ("TRACK_RANGE_M15", TRACK_RANGE_M15'FORE, 5,
104                                            TRACK_RANGE_M15'AFT,  1);
105
106     CHECK_FORE_AND_AFT ("SECONDS_MM",      SECONDS_MM'FORE, 4,
107                                            SECONDS_MM'AFT,  5);
108
109     CHECK_FORE_AND_AFT ("RANGE_CELL_MM",   RANGE_CELL_MM'FORE, 7,
110                                            RANGE_CELL_MM'AFT,  2);
111
112     CHECK_FORE_AND_AFT ("PIXEL_M10",       PIXEL_M10'FORE, 2,
113                                            PIXEL_M10'AFT,  4);
114
115     CHECK_FORE_AND_AFT ("RULER_M8",        RULER_M8'FORE, 3,
116                                            RULER_M8'AFT,  2);
117
118     CHECK_FORE_AND_AFT ("HOURS_M16",       HOURS_M16'FORE, 3,
119                                            HOURS_M16'AFT,  4);
120
121     CHECK_FORE_AND_AFT ("MILES_M16",       MILES_M16'FORE, 5,
122                                            MILES_M16'AFT,  2);
123
124     CHECK_FORE_AND_AFT ("SYMMETRIC_DEGREES_M7",
125                                         SYMMETRIC_DEGREES_M7'FORE, 4,
126                                         SYMMETRIC_DEGREES_M7'AFT,  1);
127
128     CHECK_FORE_AND_AFT ("NATURAL_DEGREES_M15",
129                                         NATURAL_DEGREES_M15'FORE, 4,
130                                         NATURAL_DEGREES_M15'AFT,  2);
131
132     CHECK_FORE_AND_AFT ("SYMMETRIC_RADIANS_M16",
133                                         SYMMETRIC_RADIANS_M16'FORE, 2,
134                                         SYMMETRIC_RADIANS_M16'AFT,  5);
135
136     CHECK_FORE_AND_AFT ("NATURAL_RADIANS_M8",
137                                         NATURAL_RADIANS_M8'FORE, 2,
138                                         NATURAL_RADIANS_M8'AFT,  2);
139
140     CHECK_FORE_AND_AFT ("ST_MILES_M8",  ST_MILES_M8'FORE, 3,
141                                         ST_MILES_M8'AFT,  2);
142
143     CHECK_FORE_AND_AFT ("ST_NATURAL_DEGREES_M11",
144                                       ST_NATURAL_DEGREES_M11'FORE, 4,
145                                       ST_NATURAL_DEGREES_M11'AFT,  1);
146
147     CHECK_FORE_AND_AFT ("ST_SYMMETRIC_RADIANS_M8",
148                                       ST_SYMMETRIC_RADIANS_M8'FORE, 2,
149                                       ST_SYMMETRIC_RADIANS_M8'AFT,  2);
150
151     RESULT;
152
153END C35A05D;
154