File : a-wtflio.adb
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT RUN-TIME COMPONENTS --
4 -- --
5 -- A D A . 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_Text_IO.Float_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_Text_IO.Float_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.Float_Aux;
43
44 ---------
45 -- Get --
46 ---------
47
48 procedure Get
49 (File : File_Type;
50 Item : out Num;
51 Width : Field := 0)
52 is
53 begin
54 Aux.Get (TFT (File), Long_Long_Float (Item), Width);
55
56 exception
57 when Constraint_Error => raise Data_Error;
58 end Get;
59
60 procedure Get
61 (Item : out Num;
62 Width : Field := 0)
63 is
64 begin
65 Get (Current_Input, Item, Width);
66 end Get;
67
68 procedure Get
69 (From : Wide_String;
70 Item : out Num;
71 Last : out Positive)
72 is
73 S : constant String := Wide_String_To_String (From, WCEM_Upper);
74 -- String on which we do the actual conversion. Note that the method
75 -- used for wide character encoding is irrelevant, since if there is
76 -- a character outside the Standard.Character range then the call to
77 -- Aux.Gets will raise Data_Error in any case.
78
79 begin
80 Aux.Gets (S, Long_Long_Float (Item), Last);
81
82 exception
83 when Constraint_Error => raise Data_Error;
84 end Get;
85
86 ---------
87 -- Put --
88 ---------
89
90 procedure Put
91 (File : File_Type;
92 Item : Num;
93 Fore : Field := Default_Fore;
94 Aft : Field := Default_Aft;
95 Exp : Field := Default_Exp)
96 is
97 begin
98 Aux.Put (TFT (File), Long_Long_Float (Item), Fore, Aft, Exp);
99 end Put;
100
101 procedure Put
102 (Item : Num;
103 Fore : Field := Default_Fore;
104 Aft : Field := Default_Aft;
105 Exp : Field := Default_Exp)
106 is
107 begin
108 Put (Current_Output, Item, Fore, Aft, Exp);
109 end Put;
110
111 procedure Put
112 (To : out Wide_String;
113 Item : Num;
114 Aft : Field := Default_Aft;
115 Exp : Field := Default_Exp)
116 is
117 S : String (To'First .. To'Last);
118
119 begin
120 Aux.Puts (S, Long_Long_Float (Item), Aft, Exp);
121
122 for J in S'Range loop
123 To (J) := Wide_Character'Val (Character'Pos (S (J)));
124 end loop;
125 end Put;
126
127 end Ada.Wide_Text_IO.Float_IO;