1-- C87B17A.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 OVERLOADING RESOLUTION USES THE RULE THAT:
26
27-- THE INITIALIZATION EXPRESSION FOR A DEFAULT DISCRIMINANT
28-- IN A TYPE DECLARATION MUST MATCH THE DISCRIMINANT'S EXPLICIT
29-- TYPEMARK.
30--
31-- THE THREE KINDS OF TYPE DECLARATIONS TESTED HERE ARE:
32--
33--    (A): RECORD TYPE.
34--    (B): PRIVATE TYPE.
35--    (C): INCOMPLETE RECORD TYPE.
36
37-- TRH  18 JUNE 82
38
39WITH REPORT; USE REPORT;
40
41PROCEDURE C87B17A IS
42
43     TYPE WHOLE  IS NEW INTEGER RANGE 0..INTEGER'LAST;
44     TYPE CITRUS IS (LEMON, LIME, ORANGE);
45     TYPE HUE    IS (RED, ORANGE, YELLOW);
46
47     FUNCTION F1 (X, Y : INTEGER) RETURN INTEGER IS
48     BEGIN
49          RETURN -1;
50     END F1;
51
52     FUNCTION F1 (X, Y : WHOLE) RETURN WHOLE IS
53     BEGIN
54          RETURN 0;
55     END F1;
56
57     FUNCTION F1 (X, Y : INTEGER) RETURN HUE IS
58     BEGIN
59          RETURN ORANGE;
60     END F1;
61
62     FUNCTION F1 (X, Y : INTEGER) RETURN CITRUS IS
63     BEGIN
64          RETURN ORANGE;
65     END F1;
66
67BEGIN
68     TEST ("C87B17A","OVERLOADED INITIALIZATION EXPRESSIONS" &
69           " IN DEFAULT DISCRIMINANTS");
70
71     DECLARE
72
73          FUNCTION "+" (X, Y : INTEGER) RETURN INTEGER
74               RENAMES F1;
75
76          FUNCTION "+" (X, Y : WHOLE)   RETURN WHOLE
77               RENAMES F1;
78
79          FUNCTION "+" (X, Y : INTEGER) RETURN HUE
80               RENAMES F1;
81
82          FUNCTION "+" (X, Y : INTEGER) RETURN CITRUS
83               RENAMES F1;
84
85          TYPE REC1 (I1 : INTEGER := 0 + 0; H1 : HUE := F1 (0, 0) ) IS
86               RECORD
87                    NULL;
88               END RECORD;
89
90          PACKAGE PVT IS
91               TYPE REC2 (H2 : HUE := ORANGE; W2 : WHOLE := 0 + 0 )
92                    IS PRIVATE;
93          PRIVATE
94               TYPE REC2 (H2 : HUE := ORANGE; W2 : WHOLE := 0 + 0 ) IS
95                    RECORD
96                         NULL;
97                    END RECORD;
98          END PVT;
99          USE PVT;
100
101          TYPE REC3 (C1 : CITRUS := ORANGE; W1 : WHOLE := "+" (0, 0));
102
103          TYPE LINK IS ACCESS REC3;
104
105          TYPE REC3 (C1 : CITRUS := ORANGE; W1 : WHOLE := "+" (0, 0)) IS
106               RECORD
107                    NULL;
108               END RECORD;
109
110          R1 : REC1;
111          R2 : REC2;
112          R3 : REC3;
113
114     BEGIN
115          IF R1.I1 /= -1 OR HUE'POS (R1.H1) /= 1 THEN
116             FAILED ("(A): RESOLUTION INCORRECT FOR RECORD TYPES");
117          END IF;
118
119          IF HUE'POS (R2.H2) /=  1 OR R2.W2 /= 0 THEN
120             FAILED ("(B): RESOLUTION INCORRECT FOR PRIVATE TYPES");
121          END IF;
122
123          IF CITRUS'POS (R3.C1) /= 2 OR R3.W1 /= 0 THEN
124             FAILED ("(C): RESOLUTION INCORRECT FOR INCOMPLETE" &
125                     " RECORD TYPES");
126          END IF;
127     END;
128
129     RESULT;
130END C87B17A;
131