|
111
|
1 ------------------------------------------------------------------------------
|
|
|
2 -- --
|
|
|
3 -- GNAT LIBRARY COMPONENTS --
|
|
|
4 -- --
|
|
|
5 -- A D A . C O N T A I N E R S . H A S H _ T A B L E S --
|
|
|
6 -- --
|
|
|
7 -- S p e c --
|
|
|
8 -- --
|
|
|
9 -- Copyright (C) 2004-2017, Free Software Foundation, Inc. --
|
|
|
10 -- --
|
|
|
11 -- GNAT is free software; you can redistribute it and/or modify it under --
|
|
|
12 -- terms of the GNU General Public License as published by the Free Soft- --
|
|
|
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
|
|
|
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
|
|
|
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
|
|
|
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
|
|
|
17 -- --
|
|
|
18 -- As a special exception under Section 7 of GPL version 3, you are granted --
|
|
|
19 -- additional permissions described in the GCC Runtime Library Exception, --
|
|
|
20 -- version 3.1, as published by the Free Software Foundation. --
|
|
|
21 -- --
|
|
|
22 -- You should have received a copy of the GNU General Public License and --
|
|
|
23 -- a copy of the GCC Runtime Library Exception along with this program; --
|
|
|
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
|
|
|
25 -- <http://www.gnu.org/licenses/>. --
|
|
|
26 -- --
|
|
|
27 -- This unit was originally developed by Matthew J Heaney. --
|
|
|
28 ------------------------------------------------------------------------------
|
|
|
29
|
|
|
30 -- This package declares the hash-table type used to implement hashed
|
|
|
31 -- containers.
|
|
|
32
|
|
|
33 with Ada.Containers.Helpers;
|
|
|
34
|
|
|
35 package Ada.Containers.Hash_Tables is
|
|
|
36 pragma Pure;
|
|
|
37 -- Declare Pure so this can be imported by Remote_Types packages
|
|
|
38
|
|
|
39 generic
|
|
|
40 type Node_Type (<>) is limited private;
|
|
|
41
|
|
|
42 type Node_Access is access Node_Type;
|
|
|
43
|
|
|
44 package Generic_Hash_Table_Types is
|
|
|
45
|
|
|
46 type Buckets_Type is array (Hash_Type range <>) of Node_Access;
|
|
|
47
|
|
|
48 type Buckets_Access is access all Buckets_Type;
|
|
|
49 for Buckets_Access'Storage_Size use 0;
|
|
|
50 -- Storage_Size of zero so this package can be Pure
|
|
|
51
|
|
|
52 type Hash_Table_Type is tagged record
|
|
|
53 Buckets : Buckets_Access := null;
|
|
|
54 Length : Count_Type := 0;
|
|
|
55 TC : aliased Helpers.Tamper_Counts;
|
|
|
56 end record;
|
|
|
57
|
|
|
58 package Implementation is new Helpers.Generic_Implementation;
|
|
|
59 end Generic_Hash_Table_Types;
|
|
|
60
|
|
|
61 generic
|
|
|
62 type Node_Type is private;
|
|
|
63 package Generic_Bounded_Hash_Table_Types is
|
|
|
64
|
|
|
65 type Nodes_Type is array (Count_Type range <>) of Node_Type;
|
|
|
66 type Buckets_Type is array (Hash_Type range <>) of Count_Type;
|
|
|
67
|
|
|
68 type Hash_Table_Type
|
|
|
69 (Capacity : Count_Type;
|
|
|
70 Modulus : Hash_Type) is
|
|
|
71 tagged record
|
|
|
72 Length : Count_Type := 0;
|
|
|
73 TC : aliased Helpers.Tamper_Counts;
|
|
|
74 Free : Count_Type'Base := -1;
|
|
|
75 Nodes : Nodes_Type (1 .. Capacity) := (others => <>);
|
|
|
76 Buckets : Buckets_Type (1 .. Modulus) := (others => 0);
|
|
|
77 end record;
|
|
|
78
|
|
|
79 package Implementation is new Helpers.Generic_Implementation;
|
|
|
80 end Generic_Bounded_Hash_Table_Types;
|
|
|
81
|
|
|
82 end Ada.Containers.Hash_Tables;
|
