|
111
|
1 -- F730A000.A
|
|
|
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 -- FOUNDATION DESCRIPTION:
|
|
|
27 -- This file simulates a generic linked list abstraction for use in tests
|
|
|
28 -- covering tagged types and type extensions.
|
|
|
29 --
|
|
|
30 -- TEST FILES:
|
|
|
31 -- This foundation consists of the following files:
|
|
|
32 --
|
|
|
33 -- => F730A000.A
|
|
|
34 -- F730A001.A
|
|
|
35 --
|
|
|
36 -- CHANGE HISTORY:
|
|
|
37 -- 06 Dec 94 SAIC ACVC 2.0
|
|
|
38 -- 03 Aug 96 SAIC ACVC 2.1: Modified prologue. Added pragma
|
|
|
39 -- Elaborate_Body. Removed extraneous record
|
|
|
40 -- extension.
|
|
|
41 --
|
|
|
42 --!
|
|
|
43
|
|
|
44 generic -- Singly-linked list abstraction.
|
|
|
45 type Parent_Type is tagged private; -- Actual is parent
|
|
|
46 package F730A000 is -- tagged type.
|
|
|
47
|
|
|
48 pragma Elaborate_Body;
|
|
|
49
|
|
|
50
|
|
|
51 -- Declarations for private linked list nodes:
|
|
|
52
|
|
|
53 type Priv_Node_Type is new Parent_Type with private; -- Private extension
|
|
|
54 -- of parent type.
|
|
|
55
|
|
|
56 -- Inherits primitive operations of actual parameter corresponding
|
|
|
57 -- to Parent_Type.
|
|
|
58
|
|
|
59
|
|
|
60 type Priv_Node_Ptr is access Priv_Node_Type;
|
|
|
61
|
|
|
62
|
|
|
63 -- Add node at head of list.
|
|
|
64 procedure Add (Item : in Priv_Node_Ptr;
|
|
|
65 Head : in out Priv_Node_Ptr);
|
|
|
66
|
|
|
67 -- Remove node from head of list and return it.
|
|
|
68 procedure Remove (Head : in out Priv_Node_Ptr;
|
|
|
69 Item : out Priv_Node_Ptr);
|
|
|
70
|
|
|
71
|
|
|
72 private
|
|
|
73
|
|
|
74 type Priv_Node_Type is new Parent_Type with record
|
|
|
75 Next : Priv_Node_Ptr := null;
|
|
|
76 end record;
|
|
|
77
|
|
|
78 end F730A000;
|
|
|
79
|
|
|
80
|
|
|
81 --==================================================================--
|
|
|
82
|
|
|
83
|
|
|
84 package body F730A000 is -- Singly-linked list abstraction.
|
|
|
85
|
|
|
86
|
|
|
87 procedure Add (Item : in Priv_Node_Ptr;
|
|
|
88 Head : in out Priv_Node_Ptr) is
|
|
|
89 begin
|
|
|
90 if Item /= null then
|
|
|
91 Item.Next := Head;
|
|
|
92 Head := Item;
|
|
|
93 end if;
|
|
|
94 end Add;
|
|
|
95
|
|
|
96
|
|
|
97 procedure Remove (Head : in out Priv_Node_Ptr;
|
|
|
98 Item : out Priv_Node_Ptr) is
|
|
|
99 begin
|
|
|
100 Item := Head;
|
|
|
101 if Head /= null then
|
|
|
102 Head := Head.Next;
|
|
|
103 end if;
|
|
|
104 end Remove;
|
|
|
105
|
|
|
106
|
|
|
107 end F730A000;
|
