------------------------------------------------------------------------------ -- -- -- GNAT LIBRARY COMPONENTS -- -- -- -- A D A . C O N T A I N E R S . B O U N D E D _ H A S H E D _ M A P S -- -- -- -- B o d y -- -- -- -- Copyright (C) 2004-2017, 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. -- ------------------------------------------------------------------------------ with Ada.Containers.Hash_Tables.Generic_Bounded_Operations; pragma Elaborate_All (Ada.Containers.Hash_Tables.Generic_Bounded_Operations); with Ada.Containers.Hash_Tables.Generic_Bounded_Keys; pragma Elaborate_All (Ada.Containers.Hash_Tables.Generic_Bounded_Keys); with Ada.Containers.Helpers; use Ada.Containers.Helpers; with Ada.Containers.Prime_Numbers; use Ada.Containers.Prime_Numbers; with System; use type System.Address; package body Ada.Containers.Bounded_Hashed_Maps is pragma Warnings (Off, "variable ""Busy*"" is not referenced"); pragma Warnings (Off, "variable ""Lock*"" is not referenced"); -- See comment in Ada.Containers.Helpers ----------------------- -- Local Subprograms -- ----------------------- function Equivalent_Key_Node (Key : Key_Type; Node : Node_Type) return Boolean; pragma Inline (Equivalent_Key_Node); function Hash_Node (Node : Node_Type) return Hash_Type; pragma Inline (Hash_Node); function Next (Node : Node_Type) return Count_Type; pragma Inline (Next); procedure Set_Next (Node : in out Node_Type; Next : Count_Type); pragma Inline (Set_Next); function Vet (Position : Cursor) return Boolean; -------------------------- -- Local Instantiations -- -------------------------- package HT_Ops is new Hash_Tables.Generic_Bounded_Operations (HT_Types => HT_Types, Hash_Node => Hash_Node, Next => Next, Set_Next => Set_Next); package Key_Ops is new Hash_Tables.Generic_Bounded_Keys (HT_Types => HT_Types, Next => Next, Set_Next => Set_Next, Key_Type => Key_Type, Hash => Hash, Equivalent_Keys => Equivalent_Key_Node); --------- -- "=" -- --------- function "=" (Left, Right : Map) return Boolean is function Find_Equal_Key (R_HT : Hash_Table_Type'Class; L_Node : Node_Type) return Boolean; function Is_Equal is new HT_Ops.Generic_Equal (Find_Equal_Key); -------------------- -- Find_Equal_Key -- -------------------- function Find_Equal_Key (R_HT : Hash_Table_Type'Class; L_Node : Node_Type) return Boolean is R_Index : constant Hash_Type := Key_Ops.Index (R_HT, L_Node.Key); R_Node : Count_Type := R_HT.Buckets (R_Index); begin while R_Node /= 0 loop if Equivalent_Keys (L_Node.Key, R_HT.Nodes (R_Node).Key) then return L_Node.Element = R_HT.Nodes (R_Node).Element; end if; R_Node := R_HT.Nodes (R_Node).Next; end loop; return False; end Find_Equal_Key; -- Start of processing for "=" begin return Is_Equal (Left, Right); end "="; ------------ -- Assign -- ------------ procedure Assign (Target : in out Map; Source : Map) is procedure Insert_Element (Source_Node : Count_Type); procedure Insert_Elements is new HT_Ops.Generic_Iteration (Insert_Element); -------------------- -- Insert_Element -- -------------------- procedure Insert_Element (Source_Node : Count_Type) is N : Node_Type renames Source.Nodes (Source_Node); C : Cursor; B : Boolean; begin Insert (Target, N.Key, N.Element, C, B); pragma Assert (B); end Insert_Element; -- Start of processing for Assign begin if Target'Address = Source'Address then return; end if; if Checks and then Target.Capacity < Source.Length then raise Capacity_Error with "Target capacity is less than Source length"; end if; HT_Ops.Clear (Target); Insert_Elements (Source); end Assign; -------------- -- Capacity -- -------------- function Capacity (Container : Map) return Count_Type is begin return Container.Capacity; end Capacity; ----------- -- Clear -- ----------- procedure Clear (Container : in out Map) is begin HT_Ops.Clear (Container); end Clear; ------------------------ -- Constant_Reference -- ------------------------ function Constant_Reference (Container : aliased Map; Position : Cursor) return Constant_Reference_Type is begin if Checks and then Position.Container = null then raise Constraint_Error with "Position cursor has no element"; end if; if Checks and then Position.Container /= Container'Unrestricted_Access then raise Program_Error with "Position cursor designates wrong map"; end if; pragma Assert (Vet (Position), "Position cursor in Constant_Reference is bad"); declare N : Node_Type renames Container.Nodes (Position.Node); TC : constant Tamper_Counts_Access := Container.TC'Unrestricted_Access; begin return R : constant Constant_Reference_Type := (Element => N.Element'Access, Control => (Controlled with TC)) do Lock (TC.all); end return; end; end Constant_Reference; function Constant_Reference (Container : aliased Map; Key : Key_Type) return Constant_Reference_Type is Node : constant Count_Type := Key_Ops.Find (Container'Unrestricted_Access.all, Key); begin if Checks and then Node = 0 then raise Constraint_Error with "key not in map"; end if; declare N : Node_Type renames Container.Nodes (Node); TC : constant Tamper_Counts_Access := Container.TC'Unrestricted_Access; begin return R : constant Constant_Reference_Type := (Element => N.Element'Access, Control => (Controlled with TC)) do Lock (TC.all); end return; end; end Constant_Reference; -------------- -- Contains -- -------------- function Contains (Container : Map; Key : Key_Type) return Boolean is begin return Find (Container, Key) /= No_Element; end Contains; ---------- -- Copy -- ---------- function Copy (Source : Map; Capacity : Count_Type := 0; Modulus : Hash_Type := 0) return Map is C : Count_Type; M : Hash_Type; begin if Capacity = 0 then C := Source.Length; elsif Capacity >= Source.Length then C := Capacity; elsif Checks then raise Capacity_Error with "Capacity value too small"; end if; if Modulus = 0 then M := Default_Modulus (C); else M := Modulus; end if; return Target : Map (Capacity => C, Modulus => M) do Assign (Target => Target, Source => Source); end return; end Copy; --------------------- -- Default_Modulus -- --------------------- function Default_Modulus (Capacity : Count_Type) return Hash_Type is begin return To_Prime (Capacity); end Default_Modulus; ------------ -- Delete -- ------------ procedure Delete (Container : in out Map; Key : Key_Type) is X : Count_Type; begin Key_Ops.Delete_Key_Sans_Free (Container, Key, X); if Checks and then X = 0 then raise Constraint_Error with "attempt to delete key not in map"; end if; HT_Ops.Free (Container, X); end Delete; procedure Delete (Container : in out Map; Position : in out Cursor) is begin if Checks and then Position.Node = 0 then raise Constraint_Error with "Position cursor of Delete equals No_Element"; end if; if Checks and then Position.Container /= Container'Unrestricted_Access then raise Program_Error with "Position cursor of Delete designates wrong map"; end if; TC_Check (Container.TC); pragma Assert (Vet (Position), "bad cursor in Delete"); HT_Ops.Delete_Node_Sans_Free (Container, Position.Node); HT_Ops.Free (Container, Position.Node); Position := No_Element; end Delete; ------------- -- Element -- ------------- function Element (Container : Map; Key : Key_Type) return Element_Type is Node : constant Count_Type := Key_Ops.Find (Container'Unrestricted_Access.all, Key); begin if Checks and then Node = 0 then raise Constraint_Error with "no element available because key not in map"; end if; return Container.Nodes (Node).Element; end Element; function Element (Position : Cursor) return Element_Type is begin if Checks and then Position.Node = 0 then raise Constraint_Error with "Position cursor of function Element equals No_Element"; end if; pragma Assert (Vet (Position), "bad cursor in function Element"); return Position.Container.Nodes (Position.Node).Element; end Element; ------------------------- -- Equivalent_Key_Node -- ------------------------- function Equivalent_Key_Node (Key : Key_Type; Node : Node_Type) return Boolean is begin return Equivalent_Keys (Key, Node.Key); end Equivalent_Key_Node; --------------------- -- Equivalent_Keys -- --------------------- function Equivalent_Keys (Left, Right : Cursor) return Boolean is begin if Checks and then Left.Node = 0 then raise Constraint_Error with "Left cursor of Equivalent_Keys equals No_Element"; end if; if Checks and then Right.Node = 0 then raise Constraint_Error with "Right cursor of Equivalent_Keys equals No_Element"; end if; pragma Assert (Vet (Left), "Left cursor of Equivalent_Keys is bad"); pragma Assert (Vet (Right), "Right cursor of Equivalent_Keys is bad"); declare LN : Node_Type renames Left.Container.Nodes (Left.Node); RN : Node_Type renames Right.Container.Nodes (Right.Node); begin return Equivalent_Keys (LN.Key, RN.Key); end; end Equivalent_Keys; function Equivalent_Keys (Left : Cursor; Right : Key_Type) return Boolean is begin if Checks and then Left.Node = 0 then raise Constraint_Error with "Left cursor of Equivalent_Keys equals No_Element"; end if; pragma Assert (Vet (Left), "Left cursor in Equivalent_Keys is bad"); declare LN : Node_Type renames Left.Container.Nodes (Left.Node); begin return Equivalent_Keys (LN.Key, Right); end; end Equivalent_Keys; function Equivalent_Keys (Left : Key_Type; Right : Cursor) return Boolean is begin if Checks and then Right.Node = 0 then raise Constraint_Error with "Right cursor of Equivalent_Keys equals No_Element"; end if; pragma Assert (Vet (Right), "Right cursor of Equivalent_Keys is bad"); declare RN : Node_Type renames Right.Container.Nodes (Right.Node); begin return Equivalent_Keys (Left, RN.Key); end; end Equivalent_Keys; ------------- -- Exclude -- ------------- procedure Exclude (Container : in out Map; Key : Key_Type) is X : Count_Type; begin Key_Ops.Delete_Key_Sans_Free (Container, Key, X); HT_Ops.Free (Container, X); end Exclude; -------------- -- Finalize -- -------------- procedure Finalize (Object : in out Iterator) is begin if Object.Container /= null then Unbusy (Object.Container.TC); end if; end Finalize; ---------- -- Find -- ---------- function Find (Container : Map; Key : Key_Type) return Cursor is Node : constant Count_Type := Key_Ops.Find (Container'Unrestricted_Access.all, Key); begin if Node = 0 then return No_Element; else return Cursor'(Container'Unrestricted_Access, Node); end if; end Find; ----------- -- First -- ----------- function First (Container : Map) return Cursor is Node : constant Count_Type := HT_Ops.First (Container); begin if Node = 0 then return No_Element; else return Cursor'(Container'Unrestricted_Access, Node); end if; end First; function First (Object : Iterator) return Cursor is begin return Object.Container.First; end First; ------------------------ -- Get_Element_Access -- ------------------------ function Get_Element_Access (Position : Cursor) return not null Element_Access is begin return Position.Container.Nodes (Position.Node).Element'Access; end Get_Element_Access; ----------------- -- Has_Element -- ----------------- function Has_Element (Position : Cursor) return Boolean is begin pragma Assert (Vet (Position), "bad cursor in Has_Element"); return Position.Node /= 0; end Has_Element; --------------- -- Hash_Node -- --------------- function Hash_Node (Node : Node_Type) return Hash_Type is begin return Hash (Node.Key); end Hash_Node; ------------- -- Include -- ------------- procedure Include (Container : in out Map; Key : Key_Type; New_Item : Element_Type) is Position : Cursor; Inserted : Boolean; begin Insert (Container, Key, New_Item, Position, Inserted); if not Inserted then TE_Check (Container.TC); declare N : Node_Type renames Container.Nodes (Position.Node); begin N.Key := Key; N.Element := New_Item; end; end if; end Include; ------------ -- Insert -- ------------ procedure Insert (Container : in out Map; Key : Key_Type; Position : out Cursor; Inserted : out Boolean) is procedure Assign_Key (Node : in out Node_Type); pragma Inline (Assign_Key); function New_Node return Count_Type; pragma Inline (New_Node); procedure Local_Insert is new Key_Ops.Generic_Conditional_Insert (New_Node); procedure Allocate is new HT_Ops.Generic_Allocate (Assign_Key); ----------------- -- Assign_Key -- ----------------- procedure Assign_Key (Node : in out Node_Type) is pragma Warnings (Off); Default_Initialized_Item : Element_Type; pragma Unmodified (Default_Initialized_Item); -- Default-initialized element (ok to reference, see below) begin Node.Key := Key; -- There is no explicit element provided, but in an instance the -- element type may be a scalar with a Default_Value aspect, or a -- composite type with such a scalar component, or components with -- default initialization, so insert a possibly initialized element -- under the given key. Node.Element := Default_Initialized_Item; pragma Warnings (On); end Assign_Key; -------------- -- New_Node -- -------------- function New_Node return Count_Type is Result : Count_Type; begin Allocate (Container, Result); return Result; end New_Node; -- Start of processing for Insert begin -- The buckets array length is specified by the user as a discriminant -- of the container type, so it is possible for the buckets array to -- have a length of zero. We must check for this case specifically, in -- order to prevent divide-by-zero errors later, when we compute the -- buckets array index value for a key, given its hash value. if Checks and then Container.Buckets'Length = 0 then raise Capacity_Error with "No capacity for insertion"; end if; Local_Insert (Container, Key, Position.Node, Inserted); Position.Container := Container'Unchecked_Access; end Insert; procedure Insert (Container : in out Map; Key : Key_Type; New_Item : Element_Type; Position : out Cursor; Inserted : out Boolean) is procedure Assign_Key (Node : in out Node_Type); pragma Inline (Assign_Key); function New_Node return Count_Type; pragma Inline (New_Node); procedure Local_Insert is new Key_Ops.Generic_Conditional_Insert (New_Node); procedure Allocate is new HT_Ops.Generic_Allocate (Assign_Key); ----------------- -- Assign_Key -- ----------------- procedure Assign_Key (Node : in out Node_Type) is begin Node.Key := Key; Node.Element := New_Item; end Assign_Key; -------------- -- New_Node -- -------------- function New_Node return Count_Type is Result : Count_Type; begin Allocate (Container, Result); return Result; end New_Node; -- Start of processing for Insert begin -- The buckets array length is specified by the user as a discriminant -- of the container type, so it is possible for the buckets array to -- have a length of zero. We must check for this case specifically, in -- order to prevent divide-by-zero errors later, when we compute the -- buckets array index value for a key, given its hash value. if Checks and then Container.Buckets'Length = 0 then raise Capacity_Error with "No capacity for insertion"; end if; Local_Insert (Container, Key, Position.Node, Inserted); Position.Container := Container'Unchecked_Access; end Insert; procedure Insert (Container : in out Map; Key : Key_Type; New_Item : Element_Type) is Position : Cursor; pragma Unreferenced (Position); Inserted : Boolean; begin Insert (Container, Key, New_Item, Position, Inserted); if Checks and then not Inserted then raise Constraint_Error with "attempt to insert key already in map"; end if; end Insert; -------------- -- Is_Empty -- -------------- function Is_Empty (Container : Map) return Boolean is begin return Container.Length = 0; end Is_Empty; ------------- -- Iterate -- ------------- procedure Iterate (Container : Map; Process : not null access procedure (Position : Cursor)) is procedure Process_Node (Node : Count_Type); pragma Inline (Process_Node); procedure Local_Iterate is new HT_Ops.Generic_Iteration (Process_Node); ------------------ -- Process_Node -- ------------------ procedure Process_Node (Node : Count_Type) is begin Process (Cursor'(Container'Unrestricted_Access, Node)); end Process_Node; Busy : With_Busy (Container.TC'Unrestricted_Access); -- Start of processing for Iterate begin Local_Iterate (Container); end Iterate; function Iterate (Container : Map) return Map_Iterator_Interfaces.Forward_Iterator'Class is begin return It : constant Iterator := (Limited_Controlled with Container => Container'Unrestricted_Access) do Busy (Container.TC'Unrestricted_Access.all); end return; end Iterate; --------- -- Key -- --------- function Key (Position : Cursor) return Key_Type is begin if Checks and then Position.Node = 0 then raise Constraint_Error with "Position cursor of function Key equals No_Element"; end if; pragma Assert (Vet (Position), "bad cursor in function Key"); return Position.Container.Nodes (Position.Node).Key; end Key; ------------ -- Length -- ------------ function Length (Container : Map) return Count_Type is begin return Container.Length; end Length; ---------- -- Move -- ---------- procedure Move (Target : in out Map; Source : in out Map) is begin if Target'Address = Source'Address then return; end if; TC_Check (Source.TC); Target.Assign (Source); Source.Clear; end Move; ---------- -- Next -- ---------- function Next (Node : Node_Type) return Count_Type is begin return Node.Next; end Next; function Next (Position : Cursor) return Cursor is begin if Position.Node = 0 then return No_Element; end if; pragma Assert (Vet (Position), "bad cursor in function Next"); declare M : Map renames Position.Container.all; Node : constant Count_Type := HT_Ops.Next (M, Position.Node); begin if Node = 0 then return No_Element; else return Cursor'(Position.Container, Node); end if; end; end Next; procedure Next (Position : in out Cursor) is begin Position := Next (Position); end Next; function Next (Object : Iterator; Position : Cursor) return Cursor is begin if Position.Container = null then return No_Element; end if; if Checks and then Position.Container /= Object.Container then raise Program_Error with "Position cursor of Next designates wrong map"; end if; return Next (Position); end Next; ---------------------- -- Pseudo_Reference -- ---------------------- function Pseudo_Reference (Container : aliased Map'Class) return Reference_Control_Type is TC : constant Tamper_Counts_Access := Container.TC'Unrestricted_Access; begin return R : constant Reference_Control_Type := (Controlled with TC) do Lock (TC.all); end return; end Pseudo_Reference; ------------------- -- Query_Element -- ------------------- procedure Query_Element (Position : Cursor; Process : not null access procedure (Key : Key_Type; Element : Element_Type)) is begin if Checks and then Position.Node = 0 then raise Constraint_Error with "Position cursor of Query_Element equals No_Element"; end if; pragma Assert (Vet (Position), "bad cursor in Query_Element"); declare M : Map renames Position.Container.all; N : Node_Type renames M.Nodes (Position.Node); Lock : With_Lock (M.TC'Unrestricted_Access); begin Process (N.Key, N.Element); end; end Query_Element; ---------- -- Read -- ---------- procedure Read (Stream : not null access Root_Stream_Type'Class; Container : out Map) is function Read_Node (Stream : not null access Root_Stream_Type'Class) return Count_Type; -- pragma Inline (Read_Node); ??? procedure Read_Nodes is new HT_Ops.Generic_Read (Read_Node); --------------- -- Read_Node -- --------------- function Read_Node (Stream : not null access Root_Stream_Type'Class) return Count_Type is procedure Read_Element (Node : in out Node_Type); -- pragma Inline (Read_Element); ??? procedure Allocate is new HT_Ops.Generic_Allocate (Read_Element); procedure Read_Element (Node : in out Node_Type) is begin Key_Type'Read (Stream, Node.Key); Element_Type'Read (Stream, Node.Element); end Read_Element; Node : Count_Type; -- Start of processing for Read_Node begin Allocate (Container, Node); return Node; end Read_Node; -- Start of processing for Read begin Read_Nodes (Stream, Container); end Read; procedure Read (Stream : not null access Root_Stream_Type'Class; Item : out Cursor) is begin raise Program_Error with "attempt to stream map cursor"; end Read; procedure Read (Stream : not null access Root_Stream_Type'Class; Item : out Reference_Type) is begin raise Program_Error with "attempt to stream reference"; end Read; procedure Read (Stream : not null access Root_Stream_Type'Class; Item : out Constant_Reference_Type) is begin raise Program_Error with "attempt to stream reference"; end Read; --------------- -- Reference -- --------------- function Reference (Container : aliased in out Map; Position : Cursor) return Reference_Type is begin if Checks and then Position.Container = null then raise Constraint_Error with "Position cursor has no element"; end if; if Checks and then Position.Container /= Container'Unrestricted_Access then raise Program_Error with "Position cursor designates wrong map"; end if; pragma Assert (Vet (Position), "Position cursor in function Reference is bad"); declare N : Node_Type renames Container.Nodes (Position.Node); TC : constant Tamper_Counts_Access := Container.TC'Unrestricted_Access; begin return R : constant Reference_Type := (Element => N.Element'Access, Control => (Controlled with TC)) do Lock (TC.all); end return; end; end Reference; function Reference (Container : aliased in out Map; Key : Key_Type) return Reference_Type is Node : constant Count_Type := Key_Ops.Find (Container, Key); begin if Checks and then Node = 0 then raise Constraint_Error with "key not in map"; end if; declare N : Node_Type renames Container.Nodes (Node); TC : constant Tamper_Counts_Access := Container.TC'Unrestricted_Access; begin return R : constant Reference_Type := (Element => N.Element'Access, Control => (Controlled with TC)) do Lock (TC.all); end return; end; end Reference; ------------- -- Replace -- ------------- procedure Replace (Container : in out Map; Key : Key_Type; New_Item : Element_Type) is Node : constant Count_Type := Key_Ops.Find (Container, Key); begin if Checks and then Node = 0 then raise Constraint_Error with "attempt to replace key not in map"; end if; TE_Check (Container.TC); declare N : Node_Type renames Container.Nodes (Node); begin N.Key := Key; N.Element := New_Item; end; end Replace; --------------------- -- Replace_Element -- --------------------- procedure Replace_Element (Container : in out Map; Position : Cursor; New_Item : Element_Type) is begin if Checks and then Position.Node = 0 then raise Constraint_Error with "Position cursor of Replace_Element equals No_Element"; end if; if Checks and then Position.Container /= Container'Unrestricted_Access then raise Program_Error with "Position cursor of Replace_Element designates wrong map"; end if; TE_Check (Position.Container.TC); pragma Assert (Vet (Position), "bad cursor in Replace_Element"); Container.Nodes (Position.Node).Element := New_Item; end Replace_Element; ---------------------- -- Reserve_Capacity -- ---------------------- procedure Reserve_Capacity (Container : in out Map; Capacity : Count_Type) is begin if Checks and then Capacity > Container.Capacity then raise Capacity_Error with "requested capacity is too large"; end if; end Reserve_Capacity; -------------- -- Set_Next -- -------------- procedure Set_Next (Node : in out Node_Type; Next : Count_Type) is begin Node.Next := Next; end Set_Next; -------------------- -- Update_Element -- -------------------- procedure Update_Element (Container : in out Map; Position : Cursor; Process : not null access procedure (Key : Key_Type; Element : in out Element_Type)) is begin if Checks and then Position.Node = 0 then raise Constraint_Error with "Position cursor of Update_Element equals No_Element"; end if; if Checks and then Position.Container /= Container'Unrestricted_Access then raise Program_Error with "Position cursor of Update_Element designates wrong map"; end if; pragma Assert (Vet (Position), "bad cursor in Update_Element"); declare N : Node_Type renames Container.Nodes (Position.Node); Lock : With_Lock (Container.TC'Unrestricted_Access); begin Process (N.Key, N.Element); end; end Update_Element; --------- -- Vet -- --------- function Vet (Position : Cursor) return Boolean is begin if Position.Node = 0 then return Position.Container = null; end if; if Position.Container = null then return False; end if; declare M : Map renames Position.Container.all; X : Count_Type; begin if M.Length = 0 then return False; end if; if M.Capacity = 0 then return False; end if; if M.Buckets'Length = 0 then return False; end if; if Position.Node > M.Capacity then return False; end if; if M.Nodes (Position.Node).Next = Position.Node then return False; end if; X := M.Buckets (Key_Ops.Checked_Index (M, M.Nodes (Position.Node).Key)); for J in 1 .. M.Length loop if X = Position.Node then return True; end if; if X = 0 then return False; end if; if X = M.Nodes (X).Next then -- to prevent unnecessary looping return False; end if; X := M.Nodes (X).Next; end loop; return False; end; end Vet; ----------- -- Write -- ----------- procedure Write (Stream : not null access Root_Stream_Type'Class; Container : Map) is procedure Write_Node (Stream : not null access Root_Stream_Type'Class; Node : Node_Type); pragma Inline (Write_Node); procedure Write_Nodes is new HT_Ops.Generic_Write (Write_Node); ---------------- -- Write_Node -- ---------------- procedure Write_Node (Stream : not null access Root_Stream_Type'Class; Node : Node_Type) is begin Key_Type'Write (Stream, Node.Key); Element_Type'Write (Stream, Node.Element); end Write_Node; -- Start of processing for Write begin Write_Nodes (Stream, Container); end Write; procedure Write (Stream : not null access Root_Stream_Type'Class; Item : Cursor) is begin raise Program_Error with "attempt to stream map cursor"; end Write; procedure Write (Stream : not null access Root_Stream_Type'Class; Item : Reference_Type) is begin raise Program_Error with "attempt to stream reference"; end Write; procedure Write (Stream : not null access Root_Stream_Type'Class; Item : Constant_Reference_Type) is begin raise Program_Error with "attempt to stream reference"; end Write; end Ada.Containers.Bounded_Hashed_Maps;