1-- C92006A.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 TASK OBJECTS CAN BE INTERCHANGED BY ASSIGNMENT OF
26-- CORRESPONDING ACCESS TYPE OBJECTS.
27
28-- WEI  3/ 4/82
29-- JWC 6/28/85   RENAMED FROM C920BIA-B.ADA
30
31WITH REPORT;
32 USE REPORT;
33PROCEDURE C92006A IS
34
35     TASK TYPE TT1 IS
36          ENTRY E1;
37          ENTRY E2;
38     END TT1;
39
40     TYPE ATT1 IS ACCESS TT1;
41     POINTER_TT1_1, POINTER_TT1_2 : ATT1;
42
43     SUBTYPE ARG IS NATURAL RANGE 0..9;
44     SPYNUMB : NATURAL := 0;
45
46     PROCEDURE PSPY_NUMB (DIGT: IN ARG) IS
47     BEGIN
48          SPYNUMB := 10*SPYNUMB+DIGT;
49     END PSPY_NUMB;
50
51     PROCEDURE PROC (P1, P2 : IN OUT ATT1) IS
52     -- SWAP TASK OBJECTS P1, P2.
53          SCRATCH : ATT1;
54     BEGIN
55          SCRATCH := P1;
56          P1 := P2;
57          P2 := SCRATCH;
58
59          P1.E2;  -- ENTRY2 SECOND OBJECT.
60          P2.E1;  -- VICE VERSA.
61
62     END PROC;
63
64     TASK BODY TT1 IS
65     BEGIN
66          ACCEPT E1 DO
67               PSPY_NUMB (1);
68          END E1;
69          ACCEPT E2 DO
70               PSPY_NUMB (2);
71          END E2;
72     END TT1;
73
74BEGIN
75
76     TEST ("C92006A", "INTERCHANGING TASK OBJECTS");
77     POINTER_TT1_1 := NEW TT1;
78     POINTER_TT1_2 := NEW TT1;
79
80     POINTER_TT1_2.ALL.E1;
81     PROC (POINTER_TT1_1, POINTER_TT1_2);
82     POINTER_TT1_2.E2;        -- E2 OF FIRST OBJECT
83-- EACH ENTRY OF EACH TASK OBJECT SHOULD HAVE BEEN CALLED.
84
85     IF SPYNUMB /= 1212 THEN
86          FAILED ("FAILURE TO SWAP TASK OBJECTS " &
87                  "IN PROCEDURE PROC");
88          COMMENT ("ACTUAL ORDER WAS:" & INTEGER'IMAGE(SPYNUMB));
89     END IF;
90
91     RESULT;
92
93END C92006A;
94