1-- C87B45C.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-- FOR A DEFAULT ENTRY PARAMETER, THE TYPE OF THE INITIALIZATION
28-- EXPRESSION MUST MATCH THE PARAMETERS'S EXPLICIT TYPEMARK.
29--
30-- THE FOUR KINDS OF EXPRESSIONS TESTED HERE ARE:
31--
32--    (A): A CALL TO AN OVERLOADED FUNCTION.
33--    (B): AN OVERLOADED OPERATOR SYMBOL.
34--    (C): AN OVERLOADED (INFIX) OPERATOR.
35--    (D): AN OVERLOADED ENUMERATION LITERAL.
36
37-- TRH  7 JULY 82
38
39WITH REPORT; USE REPORT;
40
41PROCEDURE C87B45C 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 ("C87B45C","OVERLOADED INITIALIZATION EXPRESSIONS" &
69           " IN DEFAULT ENTRY PARAMETERS");
70     DECLARE
71
72          FUNCTION "*" (X, Y : INTEGER) RETURN INTEGER
73               RENAMES F1;
74
75          FUNCTION "*" (X, Y : WHOLE)   RETURN WHOLE
76               RENAMES F1;
77
78          FUNCTION "*" (X, Y : INTEGER) RETURN HUE
79               RENAMES F1;
80
81          FUNCTION "*" (X, Y : INTEGER) RETURN CITRUS
82               RENAMES F1;
83
84          TASK T1 IS
85               ENTRY E1 (I1 : INTEGER := F1  (0, 0);
86                         W1 : WHOLE   := F1  (0, 0);
87                         C1 : CITRUS  := F1  (0, 0);
88                         H1 : HUE     := F1  (0, 0);
89                         I2 : INTEGER := "*" (0, 0);
90                         W2 : WHOLE   := "*" (0, 0);
91                         C2 : CITRUS  := "*" (0, 0);
92                         H2 : HUE     := "*" (0, 0);
93                         I3 : INTEGER := (0 * 0);
94                         W3 : WHOLE   := (0 * 0);
95                         C3 : CITRUS  := (0 * 0);
96                         H3 : HUE     := (0 * 0);
97                         C4 : CITRUS  := ORANGE;
98                         H4 : HUE     := ORANGE);
99          END T1;
100
101          TASK BODY T1 IS
102          BEGIN
103               ACCEPT E1 (I1 : INTEGER := F1  (0, 0);
104                          W1 : WHOLE   := F1  (0, 0);
105                          C1 : CITRUS  := F1  (0, 0);
106                          H1 : HUE     := F1  (0, 0);
107                          I2 : INTEGER := "*" (0, 0);
108                          W2 : WHOLE   := "*" (0, 0);
109                          C2 : CITRUS  := "*" (0, 0);
110                          H2 : HUE     := "*" (0, 0);
111                          I3 : INTEGER := (0 * 0);
112                          W3 : WHOLE   := (0 * 0);
113                          C3 : CITRUS  := (0 * 0);
114                          H3 : HUE     := (0 * 0);
115                          C4 : CITRUS  := ORANGE;
116                          H4 : HUE     := ORANGE) DO
117
118                    IF I1              /= -1 OR W1           /= 0 OR
119                       CITRUS'POS (C1) /=  2 OR HUE'POS (H1) /= 1 THEN
120                       FAILED ("(A): RESOLUTION INCORRECT - FUNCTION");
121                    END IF;
122
123                    IF I2              /= -1 OR W2           /= 0 OR
124                       CITRUS'POS (C2) /=  2 OR HUE'POS (H2) /= 1 THEN
125                       FAILED ("(B): RESOLUTION INCORRECT " &
126                               "- OPERATOR SYMBOL");
127                    END IF;
128
129                    IF I3              /= -1 OR W3           /= 0 OR
130                       CITRUS'POS (C3) /=  2 OR HUE'POS (H3) /= 1 THEN
131                       FAILED ("(C): RESOLUTION INCORRECT - INFIX " &
132                               "OPERATOR");
133                    END IF;
134
135                    IF CITRUS'POS (C4) /=  2 OR HUE'POS (H4) /= 1 THEN
136                       FAILED ("(D): RESOLUTION INCORRECT - " &
137                          "ENUMERATION LITERAL");
138                    END IF;
139
140               END E1;
141          END T1;
142
143     BEGIN
144          T1.E1;
145     END;
146
147     RESULT;
148END C87B45C;
149