1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- A D A . T E X T _ I O . E N U M E R A T I O N _ I O --
-- --
-- B o d y --
-- --
-- Copyright (C) 1992-2012, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 3, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with Ada.Text_IO.Enumeration_Aux;
package body Ada.Text_IO.Enumeration_IO is
package Aux renames Ada.Text_IO.Enumeration_Aux;
---------
-- Get --
---------
procedure Get (File : File_Type; Item : out Enum) is
Buf : String (1 .. Enum'Width + 1);
Buflen : Natural;
begin
Aux.Get_Enum_Lit (File, Buf, Buflen);
declare
Buf_Str : String renames Buf (1 .. Buflen);
pragma Unsuppress (Range_Check);
begin
Item := Enum'Value (Buf_Str);
end;
exception
when Constraint_Error => raise Data_Error;
end Get;
procedure Get (Item : out Enum) is
pragma Unsuppress (Range_Check);
begin
Get (Current_In, Item);
end Get;
procedure Get
(From : String;
Item : out Enum;
Last : out Positive)
is
Start : Natural;
begin
Aux.Scan_Enum_Lit (From, Start, Last);
declare
From_Str : String renames From (Start .. Last);
pragma Unsuppress (Range_Check);
begin
Item := Enum'Value (From_Str);
end;
exception
when Constraint_Error => raise Data_Error;
end Get;
---------
-- Put --
---------
procedure Put
(File : File_Type;
Item : Enum;
Width : Field := Default_Width;
Set : Type_Set := Default_Setting)
is
begin
-- Ensure that Item is valid before attempting to retrieve the Image, to
-- prevent the possibility of out-of-bounds addressing of index or image
-- tables. Units in the run-time library are normally compiled with
-- checks suppressed, which includes instantiated generics.
if not Item'Valid then
raise Constraint_Error with "invalid enumeration value";
end if;
Aux.Put (File, Enum'Image (Item), Width, Set);
end Put;
procedure Put
(Item : Enum;
Width : Field := Default_Width;
Set : Type_Set := Default_Setting)
is
begin
Put (Current_Out, Item, Width, Set);
end Put;
procedure Put
(To : out String;
Item : Enum;
Set : Type_Set := Default_Setting)
is
begin
-- Ensure that Item is valid before attempting to retrieve the Image, to
-- prevent the possibility of out-of-bounds addressing of index or image
-- tables. Units in the run-time library are normally compiled with
-- checks suppressed, which includes instantiated generics.
if not Item'Valid then
raise Constraint_Error with "invalid enumeration value";
end if;
Aux.Puts (To, Enum'Image (Item), Set);
end Put;
end Ada.Text_IO.Enumeration_IO;
|
