File : a-ztinio.adb
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 -- --
19 -- --
20 -- --
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
32 with Ada.Wide_Wide_Text_IO.Integer_Aux;
33 with System.WCh_Con; use System.WCh_Con;
34 with System.WCh_WtS; use System.WCh_WtS;
35
36 package 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
145 end Ada.Wide_Wide_Text_IO.Integer_IO;