1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT RUN-TIME COMPONENTS                         --
4--                                                                          --
5--           A D A . W I D E _ T E X T _ I O . D E C I M A L _ I O          --
6--                                                                          --
7--                                 B o d y                                  --
8--                                                                          --
9--          Copyright (C) 1992-2018, 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.Decimal_Aux;
33
34with System.WCh_Con; use System.WCh_Con;
35with System.WCh_WtS; use System.WCh_WtS;
36
37package body Ada.Wide_Text_IO.Decimal_IO is
38
39   subtype TFT is Ada.Wide_Text_IO.File_Type;
40   --  File type required for calls to routines in Aux
41
42   package Aux renames Ada.Wide_Text_IO.Decimal_Aux;
43
44   Scale : constant Integer := Num'Scale;
45
46   ---------
47   -- Get --
48   ---------
49
50   procedure Get
51     (File  : File_Type;
52      Item  : out Num;
53      Width : Field := 0)
54   is
55   begin
56      if Num'Size > Integer'Size then
57         Item := Num'Fixed_Value (Aux.Get_LLD (TFT (File), Width, Scale));
58      else
59         Item := Num'Fixed_Value (Aux.Get_Dec (TFT (File), Width, Scale));
60      end if;
61   exception
62      when Constraint_Error => raise Data_Error;
63   end Get;
64
65   procedure Get
66     (Item  : out Num;
67      Width : Field := 0)
68   is
69   begin
70      Get (Current_Input, Item, Width);
71   end Get;
72
73   procedure Get
74     (From : Wide_String;
75      Item : out Num;
76      Last : out Positive)
77   is
78      S : constant String := Wide_String_To_String (From, WCEM_Upper);
79      --  String on which we do the actual conversion. Note that the method
80      --  used for wide character encoding is irrelevant, since if there is
81      --  a character outside the Standard.Character range then the call to
82      --  Aux.Gets will raise Data_Error in any case.
83
84   begin
85      if Num'Size > Integer'Size then
86         --  Item := Num'Fixed_Value
87         --  should write above, but gets assert error ???
88         Item := Num
89                   (Aux.Gets_LLD (S, Last'Unrestricted_Access, Scale));
90      else
91         --  Item := Num'Fixed_Value
92         --  should write above, but gets assert error ???
93         Item := Num
94                   (Aux.Gets_Dec (S, Last'Unrestricted_Access, Scale));
95      end if;
96
97   exception
98      when Constraint_Error => raise Data_Error;
99   end Get;
100
101   ---------
102   -- Put --
103   ---------
104
105   procedure Put
106     (File : File_Type;
107      Item : Num;
108      Fore : Field := Default_Fore;
109      Aft  : Field := Default_Aft;
110      Exp  : Field := Default_Exp)
111   is
112   begin
113      if Num'Size > Integer'Size then
114         Aux.Put_LLD
115           (TFT (File), Long_Long_Integer'Integer_Value (Item),
116            Fore, Aft, Exp, Scale);
117      else
118         Aux.Put_Dec
119           (TFT (File), Integer'Integer_Value (Item), Fore, Aft, Exp, Scale);
120      end if;
121   end Put;
122
123   procedure Put
124     (Item : Num;
125      Fore : Field := Default_Fore;
126      Aft  : Field := Default_Aft;
127      Exp  : Field := Default_Exp)
128   is
129   begin
130      Put (Current_Output, Item, Fore, Aft, Exp);
131   end Put;
132
133   procedure Put
134     (To   : out Wide_String;
135      Item : Num;
136      Aft  : Field := Default_Aft;
137      Exp  : Field := Default_Exp)
138   is
139      S : String (To'First .. To'Last);
140
141   begin
142      if Num'Size > Integer'Size then
143         Aux.Puts_LLD
144           (S, Long_Long_Integer'Integer_Value (Item), Aft, Exp, Scale);
145
146      else
147         Aux.Puts_Dec (S, Integer'Integer_Value (Item), Aft, Exp, Scale);
148      end if;
149
150      for J in S'Range loop
151         To (J) := Wide_Character'Val (Character'Pos (S (J)));
152      end loop;
153   end Put;
154
155end Ada.Wide_Text_IO.Decimal_IO;
156