1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT RUN-TIME COMPONENTS                         --
4--                                                                          --
5--           A D A . 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) 1992-2020, 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_Text_IO.Integer_Aux;
33with System.Img_BIU; use System.Img_BIU;
34with System.Img_Int; use System.Img_Int;
35with System.Img_LLB; use System.Img_LLB;
36with System.Img_LLI; use System.Img_LLI;
37with System.Img_LLW; use System.Img_LLW;
38with System.Img_WIU; use System.Img_WIU;
39with System.Val_Int; use System.Val_Int;
40with System.Val_LLI; use System.Val_LLI;
41with System.WCh_Con; use System.WCh_Con;
42with System.WCh_WtS; use System.WCh_WtS;
43
44package body Ada.Wide_Text_IO.Integer_IO is
45
46   package Aux_Int is new
47     Ada.Wide_Text_IO.Integer_Aux
48       (Integer,
49        Scan_Integer,
50        Set_Image_Integer,
51        Set_Image_Width_Integer,
52        Set_Image_Based_Integer);
53
54   package Aux_LLI is new
55     Ada.Wide_Text_IO.Integer_Aux
56       (Long_Long_Integer,
57        Scan_Long_Long_Integer,
58        Set_Image_Long_Long_Integer,
59        Set_Image_Width_Long_Long_Integer,
60        Set_Image_Based_Long_Long_Integer);
61
62   Need_LLI : constant Boolean := Num'Base'Size > Integer'Size;
63   --  Throughout this generic body, we distinguish between the case where type
64   --  Integer is acceptable, and where a Long_Long_Integer is needed. This
65   --  Boolean is used to test for these cases and since it is a constant, only
66   --  code for the relevant case will be included in the instance.
67
68   ---------
69   -- Get --
70   ---------
71
72   procedure Get
73     (File  : File_Type;
74      Item  : out Num;
75      Width : Field := 0)
76   is
77      --  We depend on a range check to get Data_Error
78
79      pragma Unsuppress (Range_Check);
80      pragma Unsuppress (Overflow_Check);
81
82   begin
83      if Need_LLI then
84         Aux_LLI.Get (File, Long_Long_Integer (Item), Width);
85      else
86         Aux_Int.Get (File, Integer (Item), Width);
87      end if;
88
89   exception
90      when Constraint_Error => raise Data_Error;
91   end Get;
92
93   procedure Get
94     (Item  : out Num;
95      Width : Field := 0)
96   is
97   begin
98      Get (Current_In, Item, Width);
99   end Get;
100
101   procedure Get
102     (From : Wide_String;
103      Item : out Num;
104      Last : out Positive)
105   is
106      --  We depend on a range check to get Data_Error
107
108      pragma Unsuppress (Range_Check);
109      pragma Unsuppress (Overflow_Check);
110
111      S : constant String := Wide_String_To_String (From, WCEM_Upper);
112      --  String on which we do the actual conversion. Note that the method
113      --  used for wide character encoding is irrelevant, since if there is
114      --  a character outside the Standard.Character range then the call to
115      --  Aux.Gets will raise Data_Error in any case.
116
117   begin
118      if Need_LLI then
119         Aux_LLI.Gets (S, Long_Long_Integer (Item), Last);
120      else
121         Aux_Int.Gets (S, Integer (Item), Last);
122      end if;
123
124   exception
125      when Constraint_Error => raise Data_Error;
126   end Get;
127
128   ---------
129   -- Put --
130   ---------
131
132   procedure Put
133     (File  : File_Type;
134      Item  : Num;
135      Width : Field := Default_Width;
136      Base  : Number_Base := Default_Base)
137   is
138   begin
139      if Need_LLI then
140         Aux_LLI.Put (File, Long_Long_Integer (Item), Width, Base);
141      else
142         Aux_Int.Put (File, Integer (Item), Width, Base);
143      end if;
144   end Put;
145
146   procedure Put
147     (Item  : Num;
148      Width : Field := Default_Width;
149      Base  : Number_Base := Default_Base)
150   is
151   begin
152      Put (Current_Out, Item, Width, Base);
153   end Put;
154
155   procedure Put
156     (To   : out Wide_String;
157      Item : Num;
158      Base : Number_Base := Default_Base)
159   is
160      S : String (To'First .. To'Last);
161
162   begin
163      if Need_LLI then
164         Aux_LLI.Puts (S, Long_Long_Integer (Item), Base);
165      else
166         Aux_Int.Puts (S, Integer (Item), Base);
167      end if;
168
169      for J in S'Range loop
170         To (J) := Wide_Character'Val (Character'Pos (S (J)));
171      end loop;
172   end Put;
173
174end Ada.Wide_Text_IO.Integer_IO;
175