summaryrefslogtreecommitdiff
path: root/src/lib/gnat/s-imenne.adb
blob: 0c82dfd54d300030cb87a1416c38bdbc34dda4e5 (plain)
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
------------------------------------------------------------------------------
--                                                                          --
--                         GNAT RUN-TIME COMPONENTS                         --
--                                                                          --
--                  S Y S T E M . I M G _ E N U M _ N E W                   --
--                                                                          --
--                                 B o d y                                  --
--                                                                          --
--          Copyright (C) 2000-2013, 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_Warning;
pragma Assertion_Policy (Statement_Assertions => Ignore);

with Ada.Unchecked_Conversion;

package body System.Img_Enum_New is

   -------------------------
   -- Image_Enumeration_8 --
   -------------------------

   procedure Image_Enumeration_8
     (Pos     : Natural;
      S       : in out String;
      P       : out Natural;
      Names   : String;
      Indexes : System.Address)
   is
      pragma Assert (S'First = 1);

      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));

   begin
      S (1 .. Next - Start) := Names (Start .. Next - 1);
      P := Next - Start;
   end Image_Enumeration_8;

   --------------------------
   -- Image_Enumeration_16 --
   --------------------------

   procedure Image_Enumeration_16
     (Pos     : Natural;
      S       : in out String;
      P       : out Natural;
      Names   : String;
      Indexes : System.Address)
   is
      pragma Assert (S'First = 1);

      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));

   begin
      S (1 .. Next - Start) := Names (Start .. Next - 1);
      P := Next - Start;
   end Image_Enumeration_16;

   --------------------------
   -- Image_Enumeration_32 --
   --------------------------

   procedure Image_Enumeration_32
     (Pos     : Natural;
      S       : in out String;
      P       : out Natural;
      Names   : String;
      Indexes : System.Address)
   is
      pragma Assert (S'First = 1);

      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));

   begin
      S (1 .. Next - Start) := Names (Start .. Next - 1);
      P := Next - Start;
   end Image_Enumeration_32;

end System.Img_Enum_New;