File : a-ztdeio.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 . D E C I M A L _ 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.Decimal_Aux;
33
34 with System.WCh_Con; use System.WCh_Con;
35 with System.WCh_WtS; use System.WCh_WtS;
36
37 package body Ada.Wide_Wide_Text_IO.Decimal_IO is
38
39 subtype TFT is Ada.Wide_Wide_Text_IO.File_Type;
40 -- File type required for calls to routines in Aux
41
42 package Aux renames Ada.Wide_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_Wide_String;
75 Item : out Num;
76 Last : out Positive)
77 is
78 S : constant String := Wide_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 -- ???
117 (TFT (File), Long_Long_Integer (Item),
118 Fore, Aft, Exp, Scale);
119 else
120 Aux.Put_Dec
121 -- (TFT (File), Integer'Integer_Value (Item), Fore, Aft, Exp, Scale);
122 -- ???
123 (TFT (File), Integer (Item), Fore, Aft, Exp, Scale);
124
125 end if;
126 end Put;
127
128 procedure Put
129 (Item : Num;
130 Fore : Field := Default_Fore;
131 Aft : Field := Default_Aft;
132 Exp : Field := Default_Exp)
133 is
134 begin
135 Put (Current_Output, Item, Fore, Aft, Exp);
136 end Put;
137
138 procedure Put
139 (To : out Wide_Wide_String;
140 Item : Num;
141 Aft : Field := Default_Aft;
142 Exp : Field := Default_Exp)
143 is
144 S : String (To'First .. To'Last);
145
146 begin
147 if Num'Size > Integer'Size then
148 -- Aux.Puts_LLD
149 -- (S, Long_Long_Integer'Integer_Value (Item), Aft, Exp, Scale);
150 -- ???
151 Aux.Puts_LLD
152 (S, Long_Long_Integer (Item), Aft, Exp, Scale);
153 else
154 -- Aux.Puts_Dec (S, Integer'Integer_Value (Item), Aft, Exp, Scale);
155 -- ???
156 Aux.Puts_Dec (S, Integer (Item), Aft, Exp, Scale);
157 end if;
158
159 for J in S'Range loop
160 To (J) := Wide_Wide_Character'Val (Character'Pos (S (J)));
161 end loop;
162 end Put;
163
164 end Ada.Wide_Wide_Text_IO.Decimal_IO;