File : a-ztflio.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 . F L O A T _ 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.Float_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.Float_IO is
37
38 subtype TFT is Ada.Wide_Wide_Text_IO.File_Type;
39 -- File type required for calls to routines in Aux
40
41 package Aux renames Ada.Wide_Wide_Text_IO.Float_Aux;
42
43 ---------
44 -- Get --
45 ---------
46
47 procedure Get
48 (File : File_Type;
49 Item : out Num;
50 Width : Field := 0)
51 is
52 begin
53 Aux.Get (TFT (File), Long_Long_Float (Item), Width);
54
55 exception
56 when Constraint_Error => raise Data_Error;
57 end Get;
58
59 procedure Get
60 (Item : out Num;
61 Width : Field := 0)
62 is
63 begin
64 Get (Current_Input, Item, Width);
65 end Get;
66
67 procedure Get
68 (From : Wide_Wide_String;
69 Item : out Num;
70 Last : out Positive)
71 is
72 S : constant String := Wide_Wide_String_To_String (From, WCEM_Upper);
73 -- String on which we do the actual conversion. Note that the method
74 -- used for wide character encoding is irrelevant, since if there is
75 -- a character outside the Standard.Character range then the call to
76 -- Aux.Gets will raise Data_Error in any case.
77
78 begin
79 Aux.Gets (S, Long_Long_Float (Item), Last);
80
81 exception
82 when Constraint_Error => raise Data_Error;
83 end Get;
84
85 ---------
86 -- Put --
87 ---------
88
89 procedure Put
90 (File : File_Type;
91 Item : Num;
92 Fore : Field := Default_Fore;
93 Aft : Field := Default_Aft;
94 Exp : Field := Default_Exp)
95 is
96 begin
97 Aux.Put (TFT (File), Long_Long_Float (Item), Fore, Aft, Exp);
98 end Put;
99
100 procedure Put
101 (Item : Num;
102 Fore : Field := Default_Fore;
103 Aft : Field := Default_Aft;
104 Exp : Field := Default_Exp)
105 is
106 begin
107 Put (Current_Output, Item, Fore, Aft, Exp);
108 end Put;
109
110 procedure Put
111 (To : out Wide_Wide_String;
112 Item : Num;
113 Aft : Field := Default_Aft;
114 Exp : Field := Default_Exp)
115 is
116 S : String (To'First .. To'Last);
117
118 begin
119 Aux.Puts (S, Long_Long_Float (Item), Aft, Exp);
120
121 for J in S'Range loop
122 To (J) := Wide_Wide_Character'Val (Character'Pos (S (J)));
123 end loop;
124 end Put;
125
126 end Ada.Wide_Wide_Text_IO.Float_IO;