1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT RUN-TIME COMPONENTS                         --
4--                                                                          --
5--      A D A . W I D E _ W I D E _ T E X T _ I O . I N T E G E R _ I O     --
6--                                                                          --
7--                                 B o d y                                  --
8--                                                                          --
9--          Copyright (C) 1992-2009, 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-- GNAT was originally developed  by the GNAT team at  New York University. --
28-- Extensive contributions were provided by Ada Core Technologies Inc.      --
29--                                                                          --
30------------------------------------------------------------------------------
31
32with Ada.Wide_Wide_Text_IO.Integer_Aux;
33with System.WCh_Con; use System.WCh_Con;
34with System.WCh_WtS; use System.WCh_WtS;
35
36package body Ada.Wide_Wide_Text_IO.Integer_IO is
37
38   Need_LLI : constant Boolean := Num'Base'Size > Integer'Size;
39   --  Throughout this generic body, we distinguish between the case where type
40   --  Integer is acceptable, and where a Long_Long_Integer is needed. This
41   --  Boolean is used to test for these cases and since it is a constant, only
42   --  code for the relevant case will be included in the instance.
43
44   subtype TFT is Ada.Wide_Wide_Text_IO.File_Type;
45   --  File type required for calls to routines in Aux
46
47   package Aux renames Ada.Wide_Wide_Text_IO.Integer_Aux;
48
49   ---------
50   -- Get --
51   ---------
52
53   procedure Get
54     (File  : File_Type;
55      Item  : out Num;
56      Width : Field := 0)
57   is
58   begin
59      if Need_LLI then
60         Aux.Get_LLI (TFT (File), Long_Long_Integer (Item), Width);
61      else
62         Aux.Get_Int (TFT (File), Integer (Item), Width);
63      end if;
64
65   exception
66      when Constraint_Error => raise Data_Error;
67   end Get;
68
69   procedure Get
70     (Item  : out Num;
71      Width : Field := 0)
72   is
73   begin
74      Get (Current_Input, Item, Width);
75   end Get;
76
77   procedure Get
78     (From : Wide_Wide_String;
79      Item : out Num;
80      Last : out Positive)
81   is
82      S : constant String := Wide_Wide_String_To_String (From, WCEM_Upper);
83      --  String on which we do the actual conversion. Note that the method
84      --  used for wide character encoding is irrelevant, since if there is
85      --  a character outside the Standard.Character range then the call to
86      --  Aux.Gets will raise Data_Error in any case.
87
88   begin
89      if Need_LLI then
90         Aux.Gets_LLI (S, Long_Long_Integer (Item), Last);
91      else
92         Aux.Gets_Int (S, Integer (Item), Last);
93      end if;
94
95   exception
96      when Constraint_Error => raise Data_Error;
97   end Get;
98
99   ---------
100   -- Put --
101   ---------
102
103   procedure Put
104     (File  : File_Type;
105      Item  : Num;
106      Width : Field := Default_Width;
107      Base  : Number_Base := Default_Base)
108   is
109   begin
110      if Need_LLI then
111         Aux.Put_LLI (TFT (File), Long_Long_Integer (Item), Width, Base);
112      else
113         Aux.Put_Int (TFT (File), Integer (Item), Width, Base);
114      end if;
115   end Put;
116
117   procedure Put
118     (Item  : Num;
119      Width : Field := Default_Width;
120      Base  : Number_Base := Default_Base)
121   is
122   begin
123      Put (Current_Output, Item, Width, Base);
124   end Put;
125
126   procedure Put
127     (To   : out Wide_Wide_String;
128      Item : Num;
129      Base : Number_Base := Default_Base)
130   is
131      S : String (To'First .. To'Last);
132
133   begin
134      if Need_LLI then
135         Aux.Puts_LLI (S, Long_Long_Integer (Item), Base);
136      else
137         Aux.Puts_Int (S, Integer (Item), Base);
138      end if;
139
140      for J in S'Range loop
141         To (J) := Wide_Wide_Character'Val (Character'Pos (S (J)));
142      end loop;
143   end Put;
144
145end Ada.Wide_Wide_Text_IO.Integer_IO;
146