blob: 8ffb8f036038ab185f36b013defaafe16350cc3f (
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
|
------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- S Y S T E M . I M A G E _ U --
-- --
-- B o d y --
-- --
-- Copyright (C) 1992-2020, 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. --
-- --
------------------------------------------------------------------------------
package body System.Image_U is
--------------------
-- Image_Unsigned --
--------------------
procedure Image_Unsigned
(V : Uns;
S : in out String;
P : out Natural)
is
pragma Assert (S'First = 1);
begin
S (1) := ' ';
P := 1;
Set_Image_Unsigned (V, S, P);
end Image_Unsigned;
------------------------
-- Set_Image_Unsigned --
------------------------
procedure Set_Image_Unsigned
(V : Uns;
S : in out String;
P : in out Natural)
is
Nb_Digits : Natural := 0;
Value : Uns := V;
begin
pragma Assert (P >= S'First - 1 and then P < S'Last and then
P < Natural'Last);
-- No check is done since, as documented in the specification, the
-- caller guarantees that S is long enough to hold the result.
-- First we compute the number of characters needed for representing
-- the number.
loop
Value := Value / 10;
Nb_Digits := Nb_Digits + 1;
exit when Value = 0;
end loop;
Value := V;
-- We now populate digits from the end of the string to the beginning
for J in reverse 1 .. Nb_Digits loop
S (P + J) := Character'Val (48 + (Value rem 10));
Value := Value / 10;
end loop;
P := P + Nb_Digits;
end Set_Image_Unsigned;
end System.Image_U;
|
