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
|
------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- S Y S T E M . I M G _ E N U M --
-- --
-- B o d y --
-- --
-- Copyright (C) 2000-2009, 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. --
-- --
------------------------------------------------------------------------------
pragma Compiler_Unit;
with Ada.Unchecked_Conversion;
package body System.Img_Enum is
-------------------------
-- Image_Enumeration_8 --
-------------------------
function Image_Enumeration_8
(Pos : Natural;
Names : String;
Indexes : System.Address)
return String
is
type Natural_8 is range 0 .. 2 ** 7 - 1;
type Index_Table is array (Natural) of Natural_8;
type Index_Table_Ptr is access Index_Table;
function To_Index_Table_Ptr is
new Ada.Unchecked_Conversion (System.Address, Index_Table_Ptr);
IndexesT : constant Index_Table_Ptr := To_Index_Table_Ptr (Indexes);
Start : constant Natural := Natural (IndexesT (Pos));
Next : constant Natural := Natural (IndexesT (Pos + 1));
subtype Result_Type is String (1 .. Next - Start);
-- We need this result type to force the result to have the
-- required lower bound of 1, rather than the slice bounds.
begin
return Result_Type (Names (Start .. Next - 1));
end Image_Enumeration_8;
--------------------------
-- Image_Enumeration_16 --
--------------------------
function Image_Enumeration_16
(Pos : Natural;
Names : String;
Indexes : System.Address)
return String
is
type Natural_16 is range 0 .. 2 ** 15 - 1;
type Index_Table is array (Natural) of Natural_16;
type Index_Table_Ptr is access Index_Table;
function To_Index_Table_Ptr is
new Ada.Unchecked_Conversion (System.Address, Index_Table_Ptr);
IndexesT : constant Index_Table_Ptr := To_Index_Table_Ptr (Indexes);
Start : constant Natural := Natural (IndexesT (Pos));
Next : constant Natural := Natural (IndexesT (Pos + 1));
subtype Result_Type is String (1 .. Next - Start);
-- We need this result type to force the result to have the
-- required lower bound of 1, rather than the slice bounds.
begin
return Result_Type (Names (Start .. Next - 1));
end Image_Enumeration_16;
--------------------------
-- Image_Enumeration_32 --
--------------------------
function Image_Enumeration_32
(Pos : Natural;
Names : String;
Indexes : System.Address)
return String
is
type Natural_32 is range 0 .. 2 ** 31 - 1;
type Index_Table is array (Natural) of Natural_32;
type Index_Table_Ptr is access Index_Table;
function To_Index_Table_Ptr is
new Ada.Unchecked_Conversion (System.Address, Index_Table_Ptr);
IndexesT : constant Index_Table_Ptr := To_Index_Table_Ptr (Indexes);
Start : constant Natural := Natural (IndexesT (Pos));
Next : constant Natural := Natural (IndexesT (Pos + 1));
subtype Result_Type is String (1 .. Next - Start);
-- We need this result type to force the result to have the
-- required lower bound of 1, rather than the slice bounds.
begin
return Result_Type (Names (Start .. Next - 1));
end Image_Enumeration_32;
end System.Img_Enum;
|
