1-- C34009F.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 DERIVED NON-LIMITED PRIVATE TYPES WITH DISCRIMINANTS:
27
28--        CHECK THAT ALL VALUES OF THE PARENT (BASE) TYPE ARE PRESENT
29--        FOR THE DERIVED (BASE) TYPE WHEN THE DERIVED TYPE DEFINITION
30--        IS CONSTRAINED.
31
32--        CHECK THAT ANY CONSTRAINT IMPOSED ON THE PARENT SUBTYPE IS
33--        ALSO IMPOSED ON THE DERIVED SUBTYPE.
34
35-- HISTORY:
36--     JRK 08/31/87  CREATED ORIGINAL TEST.
37
38WITH REPORT; USE REPORT;
39
40PROCEDURE C34009F IS
41
42     PACKAGE PKG IS
43
44          MAX_LEN : CONSTANT := 10;
45
46          SUBTYPE LENGTH IS NATURAL RANGE 0 .. MAX_LEN;
47
48          TYPE PARENT (B : BOOLEAN := TRUE; L : LENGTH := 1) IS PRIVATE;
49
50          FUNCTION CREATE ( B : BOOLEAN;
51                            L : LENGTH;
52                            I : INTEGER;
53                            S : STRING;
54                            J : INTEGER;
55                            F : FLOAT;
56                            X : PARENT  -- TO RESOLVE OVERLOADING.
57                          ) RETURN PARENT;
58
59          FUNCTION CON ( B : BOOLEAN;
60                         L : LENGTH;
61                         I : INTEGER;
62                         S : STRING;
63                         J : INTEGER
64                       ) RETURN PARENT;
65
66          FUNCTION CON ( B : BOOLEAN;
67                         L : LENGTH;
68                         I : INTEGER;
69                         F : FLOAT
70                       ) RETURN PARENT;
71
72     PRIVATE
73
74          TYPE PARENT (B : BOOLEAN := TRUE; L : LENGTH := 1) IS
75               RECORD
76                    I : INTEGER;
77                    CASE B IS
78                         WHEN TRUE =>
79                              S : STRING (1 .. L);
80                              J : INTEGER;
81                         WHEN FALSE =>
82                              F : FLOAT := 5.0;
83                    END CASE;
84               END RECORD;
85
86     END PKG;
87
88     USE PKG;
89
90     TYPE T IS NEW PARENT (IDENT_BOOL (TRUE), IDENT_INT (3));
91
92     SUBTYPE SUBPARENT IS PARENT (TRUE, 3);
93
94     TYPE S IS NEW SUBPARENT;
95
96     X : T;
97     Y : S;
98
99     PACKAGE BODY PKG IS
100
101          FUNCTION CREATE
102             ( B : BOOLEAN;
103               L : LENGTH;
104               I : INTEGER;
105               S : STRING;
106               J : INTEGER;
107               F : FLOAT;
108               X : PARENT
109             ) RETURN PARENT
110          IS
111          BEGIN
112               CASE B IS
113                    WHEN TRUE =>
114                         RETURN (TRUE, L, I, S, J);
115                    WHEN FALSE =>
116                         RETURN (FALSE, L, I, F);
117               END CASE;
118          END CREATE;
119
120          FUNCTION CON
121             ( B : BOOLEAN;
122               L : LENGTH;
123               I : INTEGER;
124               S : STRING;
125               J : INTEGER
126             ) RETURN PARENT
127          IS
128          BEGIN
129               RETURN (TRUE, L, I, S, J);
130          END CON;
131
132          FUNCTION CON
133             ( B : BOOLEAN;
134               L : LENGTH;
135               I : INTEGER;
136               F : FLOAT
137             ) RETURN PARENT
138          IS
139          BEGIN
140               RETURN (FALSE, L, I, F);
141          END CON;
142
143     END PKG;
144
145BEGIN
146     TEST ("C34009F", "CHECK THAT ALL VALUES OF THE PARENT (BASE) " &
147                      "TYPE ARE PRESENT FOR THE DERIVED (BASE) TYPE " &
148                      "WHEN THE DERIVED TYPE DEFINITION IS " &
149                      "CONSTRAINED.  ALSO CHECK THAT ANY CONSTRAINT " &
150                      "IMPOSED ON THE PARENT SUBTYPE IS ALSO IMPOSED " &
151                      "ON THE DERIVED SUBTYPE.  CHECK FOR DERIVED " &
152                      "NON-LIMITED PRIVATE TYPES WITH DISCRIMINANTS");
153
154     X := CON (TRUE, 3, 2, "AAA", 2);
155     Y := CON (TRUE, 3, 2, "AAA", 2);
156
157     -- CHECK THAT BASE TYPE VALUES NOT IN THE SUBTYPE ARE PRESENT.
158
159     IF CREATE (FALSE, 2, 3, "ZZ", 5, 6.0, X) /=
160        CON (FALSE, 2, 3, 6.0) OR
161        CREATE (FALSE, 2, 3, "ZZ", 5, 6.0, Y) /=
162        CON (FALSE, 2, 3, 6.0) THEN
163          FAILED ("CAN'T CREATE BASE TYPE VALUES OUTSIDE THE SUBTYPE");
164     END IF;
165
166     IF CREATE (FALSE, 2, 3, "ZZ", 5, 6.0, X) IN T OR
167        CREATE (FALSE, 2, 3, "ZZ", 5, 6.0, Y) IN S THEN
168          FAILED ("INCORRECT ""IN""");
169     END IF;
170
171     -- CHECK THE DERIVED SUBTYPE CONSTRAINT.
172
173     IF X.B /= TRUE OR X.L /= 3 OR
174        Y.B /= TRUE OR Y.L /= 3 THEN
175          FAILED ("INCORRECT SELECTION OF DISCRIMINANT VALUES");
176     END IF;
177
178     IF NOT X'CONSTRAINED OR NOT Y'CONSTRAINED THEN
179          FAILED ("INCORRECT 'CONSTRAINED");
180     END IF;
181
182     BEGIN
183          X := CON (TRUE, 3, 1, "ABC", 4);
184          Y := CON (TRUE, 3, 1, "ABC", 4);
185          IF PARENT (X) /= PARENT (Y) THEN  -- USE X AND Y.
186               FAILED ("INCORRECT CONVERSION TO PARENT");
187          END IF;
188     EXCEPTION
189          WHEN OTHERS =>
190               FAILED ("EXCEPTION RAISED BY OK ASSIGNMENT");
191     END;
192
193     BEGIN
194          X := CON (FALSE, 3, 2, 6.0);
195          FAILED ("CONSTRAINT_ERROR NOT RAISED -- " &
196                  "X := CON (FALSE, 3, 2, 6.0)");
197          IF X = CON (FALSE, 3, 2, 6.0) THEN  -- USE X.
198               COMMENT ("X ALTERED -- X := CON (FALSE, 3, 2, 6.0)");
199          END IF;
200     EXCEPTION
201          WHEN CONSTRAINT_ERROR =>
202               NULL;
203          WHEN OTHERS =>
204               FAILED ("WRONG EXCEPTION RAISED -- " &
205                       "X := CON (FALSE, 3, 2, 6.0)");
206     END;
207
208     BEGIN
209          X := CON (TRUE, 4, 2, "ZZZZ", 6);
210          FAILED ("CONSTRAINT_ERROR NOT RAISED -- " &
211                  "X := CON (TRUE, 4, 2, ""ZZZZ"", 6)");
212          IF X = CON (TRUE, 4, 2, "ZZZZ", 6) THEN  -- USE X.
213               COMMENT ("X ALTERED -- " &
214                        "X := CON (TRUE, 4, 2, ""ZZZZ"", 6)");
215          END IF;
216     EXCEPTION
217          WHEN CONSTRAINT_ERROR =>
218               NULL;
219          WHEN OTHERS =>
220               FAILED ("WRONG EXCEPTION RAISED -- " &
221                       "X := CON (TRUE, 4, 2, ""ZZZZ"", 6)");
222     END;
223
224     BEGIN
225          Y := CON (FALSE, 3, 2, 6.0);
226          FAILED ("CONSTRAINT_ERROR NOT RAISED -- " &
227                  "Y := CON (FALSE, 3, 2, 6.0)");
228          IF Y = CON (FALSE, 3, 2, 6.0) THEN  -- USE Y.
229               COMMENT ("Y ALTERED -- Y := CON (FALSE, 3, 2, 6.0)");
230          END IF;
231     EXCEPTION
232          WHEN CONSTRAINT_ERROR =>
233               NULL;
234          WHEN OTHERS =>
235               FAILED ("WRONG EXCEPTION RAISED -- " &
236                       "Y := CON (FALSE, 3, 2, 6.0)");
237     END;
238
239     BEGIN
240          Y := CON (TRUE, 4, 2, "ZZZZ", 6);
241          FAILED ("CONSTRAINT_ERROR NOT RAISED -- " &
242                  "Y := CON (TRUE, 4, 2, ""ZZZZ"", 6)");
243          IF Y = CON (TRUE, 4, 2, "ZZZZ", 6) THEN  -- USE Y.
244               COMMENT ("Y ALTERED -- " &
245                        "Y := CON (TRUE, 4, 2, ""ZZZZ"", 6)");
246          END IF;
247     EXCEPTION
248          WHEN CONSTRAINT_ERROR =>
249               NULL;
250          WHEN OTHERS =>
251               FAILED ("WRONG EXCEPTION RAISED -- " &
252                       "Y := CON (TRUE, 4, 2, ""ZZZZ"", 6)");
253     END;
254
255     RESULT;
256END C34009F;
257