1-- C3A00122.AM
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--
26-- OBJECTIVE:
27--      Check that an access-to-subprogram object can be used to invoke a
28--      subprogram when the subprogram body had been declared and implemented
29--      as a subunit.
30--
31-- TEST DESCRIPTION:
32--      Declare an access to procedure type in a main program.  Declare
33--      three different log subprogram body stubs that can be referred to by
34--      the access to procedure type.
35--
36--      Complete bodies of the log procedures.
37--
38--      In the main program, each procedure will be called indirectly by
39--      dereferencing the access value.
40--
41-- TEST FILES:
42--      The following files comprise this test:
43--
44--         C3A00120.A
45--         C3A00121.A
46--      => C3A00122.AM
47--
48--
49-- CHANGE HISTORY:
50--      06 Dec 94   SAIC    ACVC 2.0
51--
52--!
53
54 with Report;
55
56 with C3A0012_0;
57
58 procedure C3A00122 is
59
60    function "="( A,B: C3A0012_0.Call_Kind ) return Boolean
61             renames C3A0012_0."=";
62
63    Log_Access  : C3A0012_0.Log_Procedure_Ptr;
64    Theta       : Float := 0.0;
65    Method      : C3A0012_0.Call_Kind := C3A0012_0.No_Call_Made;
66
67
68
69   function Due_Process( LA: C3A0012_0.Log_Procedure_Ptr )
70            return C3A0012_0.Call_Kind is
71     Result : C3A0012_0.Call_Kind := C3A0012_0.No_Call_Made;
72   begin
73     LA( Theta, Result );
74     return Result;
75   end Due_Process;
76
77 begin
78
79    Report.Test ("C3A0012", "Check that an access to a subprogram object " &
80                 "can be used to select and invoke an operation with " &
81                 "appropriate arguments");
82
83    Log_Access := C3A0012_0.Log_Calc_Fast'Access;
84
85    -- Invoking Log procedure designated by access value
86    Method := Due_Process( Log_Access );
87
88    If Method /= C3A0012_0.Fast_Call then
89       Report.Failed ("Incorrect Log_Calc_Fast result");
90    end if;
91
92    Log_Access := C3A0012_0.Log_Calc_Acc'Access;
93
94    -- Invoking Log procedure designated by access value
95    Method := Due_Process( Log_Access );
96
97    If Method /= C3A0012_0.Accurate_Call then
98       Report.Failed ("Incorrect Log_Calc_Acc result");
99    end if;
100
101    Log_Access := C3A0012_0.Log_Calc_Table'Access;
102
103    -- Invoking Log procedure designated by access value
104    Method := Due_Process( Log_Access );
105
106    If Method /= C3A0012_0.Table_Lookup_Call then
107       Report.Failed ("Incorrect Log_Calc_Table result");
108    end if;
109
110    Report.Result;
111
112 end C3A00122;
113
114