1-- C95095B.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 OVERLOADED ENTRY DECLARATIONS
26-- ARE PERMITTED IN WHICH THERE IS A MINIMAL
27-- DIFFERENCE BETWEEN THE DECLARATIONS.
28
29--     (B) ONE ENTRY HAS ONE LESS PARAMETER THAN THE OTHER.
30
31-- JWC 7/24/85
32-- JRK 10/2/85
33
34WITH REPORT; USE REPORT;
35PROCEDURE C95095B IS
36
37BEGIN
38     TEST ("C95095B", "ENTRY OVERLOADING WITH " &
39                      "MINIMAL DIFFERENCES");
40
41     --------------------------------------------------
42
43     -- ONE ENTRY HAS ONE MORE PARAMETER
44     -- THAN THE OTHER.  THIS IS TESTED IN THE
45     -- CASE IN WHICH THAT PARAMETER HAS A DEFAULT
46     -- VALUE, AND THE CASE IN WHICH IT DOES NOT.
47
48     DECLARE
49          I, J : INTEGER := 0;
50          B : BOOLEAN := TRUE;
51          S : STRING (1..2) := "12";
52
53          TASK T IS
54               ENTRY E1 (I1, I2 : INTEGER; B1 : IN OUT BOOLEAN);
55               ENTRY E1 (I1, I2 : INTEGER);
56               ENTRY E2 (B1 : IN OUT BOOLEAN; I1 : INTEGER := 0);
57               ENTRY E2 (B1 : IN OUT BOOLEAN);
58          END T;
59
60          TASK BODY T IS
61          BEGIN
62               LOOP
63                    SELECT
64                         ACCEPT E1 (I1, I2 : INTEGER;
65                                    B1 : IN OUT BOOLEAN) DO
66                              S (1) := 'A';
67                         END E1;
68                    OR
69                         ACCEPT E1 (I1, I2 : INTEGER) DO
70                              S (2) := 'B';
71                         END E1;
72                    OR
73                         ACCEPT E2 (B1 : IN OUT BOOLEAN;
74                                    I1 : INTEGER := 0) DO
75                              S (1) := 'C';
76                         END E2;
77                    OR
78                         ACCEPT E2 (B1 : IN OUT BOOLEAN) DO
79                              S (2) := 'D';
80                         END E2;
81                    OR
82                         TERMINATE;
83                    END SELECT;
84               END LOOP;
85          END T;
86
87     BEGIN
88          T.E1 (I, J, B);
89          T.E1 (I, J);
90
91          IF S /= "AB" THEN
92               FAILED ("ENTRIES DIFFERING ONLY IN " &
93                       "NUMBER OF PARAMETERS (NO DEFAULTS) " &
94                       "CAUSED CONFUSION");
95          END IF;
96
97          S := "12";
98          T.E2 (B, I);
99          -- NOTE THAT A CALL TO T.E2 WITH ONLY
100          -- ONE PARAMETER IS AMBIGUOUS.
101
102          IF S /= "C2" THEN
103               FAILED ("ENTRIES DIFFERING ONLY IN " &
104                       "EXISTENCE OF ONE PARAMETER (WITH " &
105                       "DEFAULT) CAUSED CONFUSION");
106          END IF;
107     END;
108
109     --------------------------------------------------
110
111     RESULT;
112END C95095B;
113