File : s-imenne.adb
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT RUN-TIME COMPONENTS --
4 -- --
5 -- S Y S T E M . I M G _ E N U M _ N E W --
6 -- --
7 -- B o d y --
8 -- --
9 -- Copyright (C) 2000-2013, 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 pragma Compiler_Unit_Warning;
33
34 with Ada.Unchecked_Conversion;
35
36 package body System.Img_Enum_New is
37
38 -------------------------
39 -- Image_Enumeration_8 --
40 -------------------------
41
42 procedure Image_Enumeration_8
43 (Pos : Natural;
44 S : in out String;
45 P : out Natural;
46 Names : String;
47 Indexes : System.Address)
48 is
49 pragma Assert (S'First = 1);
50
51 type Natural_8 is range 0 .. 2 ** 7 - 1;
52 type Index_Table is array (Natural) of Natural_8;
53 type Index_Table_Ptr is access Index_Table;
54
55 function To_Index_Table_Ptr is
56 new Ada.Unchecked_Conversion (System.Address, Index_Table_Ptr);
57
58 IndexesT : constant Index_Table_Ptr := To_Index_Table_Ptr (Indexes);
59
60 Start : constant Natural := Natural (IndexesT (Pos));
61 Next : constant Natural := Natural (IndexesT (Pos + 1));
62
63 begin
64 S (1 .. Next - Start) := Names (Start .. Next - 1);
65 P := Next - Start;
66 end Image_Enumeration_8;
67
68 --------------------------
69 -- Image_Enumeration_16 --
70 --------------------------
71
72 procedure Image_Enumeration_16
73 (Pos : Natural;
74 S : in out String;
75 P : out Natural;
76 Names : String;
77 Indexes : System.Address)
78 is
79 pragma Assert (S'First = 1);
80
81 type Natural_16 is range 0 .. 2 ** 15 - 1;
82 type Index_Table is array (Natural) of Natural_16;
83 type Index_Table_Ptr is access Index_Table;
84
85 function To_Index_Table_Ptr is
86 new Ada.Unchecked_Conversion (System.Address, Index_Table_Ptr);
87
88 IndexesT : constant Index_Table_Ptr := To_Index_Table_Ptr (Indexes);
89
90 Start : constant Natural := Natural (IndexesT (Pos));
91 Next : constant Natural := Natural (IndexesT (Pos + 1));
92
93 begin
94 S (1 .. Next - Start) := Names (Start .. Next - 1);
95 P := Next - Start;
96 end Image_Enumeration_16;
97
98 --------------------------
99 -- Image_Enumeration_32 --
100 --------------------------
101
102 procedure Image_Enumeration_32
103 (Pos : Natural;
104 S : in out String;
105 P : out Natural;
106 Names : String;
107 Indexes : System.Address)
108 is
109 pragma Assert (S'First = 1);
110
111 type Natural_32 is range 0 .. 2 ** 31 - 1;
112 type Index_Table is array (Natural) of Natural_32;
113 type Index_Table_Ptr is access Index_Table;
114
115 function To_Index_Table_Ptr is
116 new Ada.Unchecked_Conversion (System.Address, Index_Table_Ptr);
117
118 IndexesT : constant Index_Table_Ptr := To_Index_Table_Ptr (Indexes);
119
120 Start : constant Natural := Natural (IndexesT (Pos));
121 Next : constant Natural := Natural (IndexesT (Pos + 1));
122
123 begin
124 S (1 .. Next - Start) := Names (Start .. Next - 1);
125 P := Next - Start;
126 end Image_Enumeration_32;
127
128 end System.Img_Enum_New;