1-- CE2201E.DEP
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 WHETHER READ, WRITE, AND END_OF_FILE ARE SUPPORTED FOR
27--     SEQUENTIAL FILES WITH VARIANT RECORDS WITH NON-DEFAULT
28--     DISCRIMINANTS.
29
30--     IF I/O IS NOT SUPPORTED, THEN CREATE AND OPEN CAN RAISE USE_ERROR
31--     OR NAME_ERROR. SEE (AI-00332).
32
33-- APPLICABILITY CRITERIA:
34--     THIS TEST IS NON-APPLICABLE IF THE INSTANTIATION OF
35--     SEQUENTIAL_IO WITH VARIANT RECORDS HAVING NO DEFAULT
36--     DISCRIMINANT VALUES IS REJECTED.
37
38-- HISTORY:
39--     JBG 1/6/83
40--     JBG 5/2/83
41--     TBN 11/18/85     RENAMED FROM CE2201E.DEP AND MODIFIED COMMENTS.
42--                      SPLIT DEFAULT DISCRIMINANT CASE INTO
43--                      CE2201G.ADA.
44--     TBN 11/04/86     REVISED TEST TO OUTPUT A NON_APPLICABLE
45--                      RESULT WHEN FILES ARE NOT SUPPORTED.
46--     THS 03/30/90     RENAMED FROM EE2201E.ADA.
47
48WITH REPORT; USE REPORT;
49WITH SEQUENTIAL_IO;
50
51PROCEDURE CE2201E IS
52     INCOMPLETE : EXCEPTION;
53
54BEGIN
55
56     TEST ("CE2201E", "CHECK WHETHER READ, WRITE, AND END_OF_FILE " &
57                      "ARE SUPPORTED FOR SEQUENTIAL FILES WITH " &
58                      "UNCONSTRAINED VARIANT RECORD TYPES WITH " &
59                      "NON-DEFAULT DISCRIMINANTS.");
60
61     DECLARE
62          TYPE VAR_REC (DISCR : BOOLEAN) IS
63               RECORD
64                    CASE DISCR IS
65                         WHEN TRUE =>
66                              A : INTEGER;
67                         WHEN FALSE =>
68                              B : STRING (1..20);
69                    END CASE;
70               END RECORD;
71
72          PACKAGE SEQ_VAR_REC
73               IS NEW SEQUENTIAL_IO (VAR_REC);  -- N/A => ERROR.
74          USE SEQ_VAR_REC;
75
76          FILE_VAR_REC : FILE_TYPE;
77          ITEM_TRUE  : VAR_REC(TRUE);
78          ITEM_FALSE : VAR_REC(FALSE);
79
80     BEGIN
81
82          BEGIN
83               CREATE (FILE_VAR_REC);
84          EXCEPTION
85               WHEN USE_ERROR =>
86                    NOT_APPLICABLE ("USE_ERROR RAISED; SEQUENTIAL " &
87                                    "CREATE");
88                    RAISE INCOMPLETE;
89               WHEN NAME_ERROR =>
90                    NOT_APPLICABLE ("NAME_ERROR RAISED; SEQUENTIAL " &
91                                    "CREATE");
92                    RAISE INCOMPLETE;
93               WHEN OTHERS =>
94                    FAILED ("UNEXPECTED EXCEPTION RAISED; SEQUENTIAL " &
95                            "CREATE");
96                    RAISE INCOMPLETE;
97          END;
98
99          BEGIN
100               WRITE (FILE_VAR_REC, (TRUE, -6));
101               WRITE (FILE_VAR_REC, (FALSE, (1..20 => 'C')));
102          EXCEPTION
103               WHEN OTHERS =>
104                    FAILED ("WRITE FOR RECORD WITH DISCRIMINANT");
105          END;
106
107          BEGIN
108               RESET (FILE_VAR_REC,IN_FILE);
109          EXCEPTION
110               WHEN USE_ERROR =>
111                    NOT_APPLICABLE ("USE_ERROR FOR RESET");
112                    RAISE INCOMPLETE;
113          END;
114
115          IF END_OF_FILE (FILE_VAR_REC) THEN
116               FAILED ("WRONG END_OF_FILE VALUE FOR RECORD" &
117                       "WITH DISCRIMINANT");
118          END IF;
119
120          BEGIN
121               READ (FILE_VAR_REC,ITEM_TRUE);
122
123               IF ITEM_TRUE /= (TRUE, IDENT_INT(-6)) THEN
124                    FAILED ("READ WRONG VALUE - 1");
125               END IF;
126
127               IF END_OF_FILE (FILE_VAR_REC) THEN
128                    FAILED ("PREMATURE END OF FILE");
129               END IF;
130
131               READ (FILE_VAR_REC, ITEM_FALSE);
132
133               IF ITEM_FALSE /= (FALSE, (1..IDENT_INT(20) => 'C')) THEN
134                    FAILED ("READ WRONG VALUE - 2");
135               END IF;
136
137               IF NOT END_OF_FILE(FILE_VAR_REC) THEN
138                    FAILED ("NOT AT END OF FILE");
139               END IF;
140
141          EXCEPTION
142               WHEN OTHERS =>
143                    FAILED ("READ FOR VARIANT RECORD");
144          END;
145
146          CLOSE (FILE_VAR_REC);
147
148     END;
149     RESULT;
150
151EXCEPTION
152     WHEN INCOMPLETE =>
153          RESULT;
154
155END CE2201E;
156