From 1bc5aee63eb72b341f506ad058502cd0361f0d10 Mon Sep 17 00:00:00 2001 From: Ben Cheng Date: Tue, 25 Mar 2014 22:37:19 -0700 Subject: Initial checkin of GCC 4.9.0 from trunk (r208799). Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba --- gcc-4.9/gcc/ada/a-chtgbk.ads | 120 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 120 insertions(+) create mode 100644 gcc-4.9/gcc/ada/a-chtgbk.ads (limited to 'gcc-4.9/gcc/ada/a-chtgbk.ads') diff --git a/gcc-4.9/gcc/ada/a-chtgbk.ads b/gcc-4.9/gcc/ada/a-chtgbk.ads new file mode 100644 index 000000000..d6d207780 --- /dev/null +++ b/gcc-4.9/gcc/ada/a-chtgbk.ads @@ -0,0 +1,120 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT LIBRARY COMPONENTS -- +-- -- +-- ADA.CONTAINERS.HASH_TABLES.GENERIC_BOUNDED_KEYS -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 2004-2013, 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 -- +-- . -- +-- -- +-- This unit was originally developed by Matthew J Heaney. -- +------------------------------------------------------------------------------ + +-- Hash_Table_Type is used to implement hashed containers. This package +-- declares hash-table operations that depend on keys. + +generic + with package HT_Types is + new Generic_Bounded_Hash_Table_Types (<>); + + use HT_Types; + + with function Next (Node : Node_Type) return Count_Type; + + with procedure Set_Next + (Node : in out Node_Type; + Next : Count_Type); + + type Key_Type (<>) is limited private; + + with function Hash (Key : Key_Type) return Hash_Type; + + with function Equivalent_Keys + (Key : Key_Type; + Node : Node_Type) return Boolean; + +package Ada.Containers.Hash_Tables.Generic_Bounded_Keys is + pragma Pure; + + function Index + (HT : Hash_Table_Type'Class; + Key : Key_Type) return Hash_Type; + pragma Inline (Index); + -- Returns the bucket number (array index value) for the given key + + function Checked_Index + (HT : aliased in out Hash_Table_Type'Class; + Key : Key_Type) return Hash_Type; + pragma Inline (Checked_Index); + -- Calls Index, but also locks and unlocks the container, per AI05-0022, in + -- order to detect element tampering by the generic actual Hash function. + + function Checked_Equivalent_Keys + (HT : aliased in out Hash_Table_Type'Class; + Key : Key_Type; + Node : Count_Type) return Boolean; + -- Calls Equivalent_Keys, but locks and unlocks the container, per + -- AI05-0022, in order to detect element tampering by that generic actual. + + procedure Delete_Key_Sans_Free + (HT : in out Hash_Table_Type'Class; + Key : Key_Type; + X : out Count_Type); + -- Removes the node (if any) with the given key from the hash table, + -- without deallocating it. Program_Error is raised if the hash + -- table is busy. + + function Find + (HT : Hash_Table_Type'Class; + Key : Key_Type) return Count_Type; + -- Returns the node (if any) corresponding to the given key + + generic + with function New_Node return Count_Type; + procedure Generic_Conditional_Insert + (HT : in out Hash_Table_Type'Class; + Key : Key_Type; + Node : out Count_Type; + Inserted : out Boolean); + -- Attempts to insert a new node with the given key into the hash table. + -- If a node with that key already exists in the table, then that node + -- is returned and Inserted returns False. Otherwise New_Node is called + -- to allocate a new node, and Inserted returns True. Program_Error is + -- raised if the hash table is busy. + + generic + with function Hash (Node : Node_Type) return Hash_Type; + with procedure Assign (Node : in out Node_Type; Key : Key_Type); + procedure Generic_Replace_Element + (HT : in out Hash_Table_Type'Class; + Node : Count_Type; + Key : Key_Type); + -- Assigns Key to Node, possibly changing its equivalence class. If Node + -- is in the same equivalence class as Key (that is, it's already in the + -- bucket implied by Key), then if the hash table is locked then + -- Program_Error is raised; otherwise Assign is called to assign Key to + -- Node. If Node is in a different bucket from Key, then Program_Error is + -- raised if the hash table is busy. Otherwise it Assigns Key to Node and + -- moves the Node from its current bucket to the bucket implied by Key. + -- Note that it is never proper to assign to Node a key value already + -- in the map, and so if Key is equivalent to some other node then + -- Program_Error is raised. + +end Ada.Containers.Hash_Tables.Generic_Bounded_Keys; -- cgit v1.2.3