-- --
-- S p e c --
-- --
--- Copyright (C) 2004-2005, Free Software Foundation, Inc. --
--- --
--- This specification is derived from the Ada Reference Manual for use with --
--- GNAT. The copyright notice above, and the license provisions that follow --
--- apply solely to the contents of the part following the private keyword. --
+-- 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 2, or (at your option) any later ver- --
+-- 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. See the GNU General Public License --
--- for more details. You should have received a copy of the GNU General --
--- Public License distributed with GNAT; see file COPYING. If not, write --
--- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
--- Boston, MA 02110-1301, USA. --
--- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
+-- 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 Preelaborate;
+ pragma Pure;
+ -- Declare Pure so this can be imported by Remote_Types packages
generic
type Node_Type (<>) is limited private;
package Generic_Hash_Table_Types is
type Buckets_Type is array (Hash_Type range <>) of Node_Access;
- type Buckets_Access is access Buckets_Type;
+ 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;
+ 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;
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