| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT LIBRARY COMPONENTS -- |
| -- -- |
| -- A D A . C O N T A I N E R S . H A S H _ T A B L E S -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 2004-2011, Free Software Foundation, Inc. -- |
| -- -- |
| -- GNAT is free software; you can redistribute it and/or modify it under -- |
| -- terms of the GNU General Public License as published by the Free Soft- -- |
| -- ware Foundation; either version 3, or (at your option) any later ver- -- |
| -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
| -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- |
| -- or FITNESS FOR A PARTICULAR PURPOSE. -- |
| -- -- |
| -- As a special exception under Section 7 of GPL version 3, you are granted -- |
| -- additional permissions described in the GCC Runtime Library Exception, -- |
| -- version 3.1, as published by the Free Software Foundation. -- |
| -- -- |
| -- You should have received a copy of the GNU General Public License and -- |
| -- a copy of the GCC Runtime Library Exception along with this program; -- |
| -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- |
| -- <http://www.gnu.org/licenses/>. -- |
| -- -- |
| -- This unit was originally developed by Matthew J Heaney. -- |
| ------------------------------------------------------------------------------ |
| |
| -- This package declares the hash-table type used to implement hashed |
| -- containers. |
| |
| package Ada.Containers.Hash_Tables is |
| pragma Pure; |
| -- Declare Pure so this can be imported by Remote_Types packages |
| |
| generic |
| type Node_Type (<>) is limited private; |
| |
| type Node_Access is access Node_Type; |
| |
| package Generic_Hash_Table_Types is |
| type Buckets_Type is array (Hash_Type range <>) of Node_Access; |
| |
| type Buckets_Access is access all Buckets_Type; |
| for Buckets_Access'Storage_Size use 0; |
| -- Storage_Size of zero so this package can be Pure |
| |
| type Hash_Table_Type is tagged record |
| Buckets : Buckets_Access; |
| Length : Count_Type := 0; |
| Busy : Natural := 0; |
| Lock : Natural := 0; |
| end record; |
| end Generic_Hash_Table_Types; |
| |
| generic |
| type Node_Type is private; |
| package Generic_Bounded_Hash_Table_Types is |
| type Nodes_Type is array (Count_Type range <>) of Node_Type; |
| type Buckets_Type is array (Hash_Type range <>) of Count_Type; |
| |
| type Hash_Table_Type |
| (Capacity : Count_Type; |
| Modulus : Hash_Type) is |
| tagged record |
| Length : Count_Type := 0; |
| Busy : Natural := 0; |
| Lock : Natural := 0; |
| Free : Count_Type'Base := -1; |
| Nodes : Nodes_Type (1 .. Capacity) := (others => <>); |
| Buckets : Buckets_Type (1 .. Modulus) := (others => 0); |
| end record; |
| end Generic_Bounded_Hash_Table_Types; |
| |
| end Ada.Containers.Hash_Tables; |
