1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT RUN-TIME COMPONENTS                         --
4--                                                                          --
5--                       S Y S T E M . I M G _ B I U                        --
6--                                                                          --
7--                                 S p e c                                  --
8--                                                                          --
9--           Copyright (C) 1992-2009 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-- As a special exception under Section 7 of GPL version 3, you are granted --
19-- additional permissions described in the GCC Runtime Library Exception,   --
20-- version 3.1, as published by the Free Software Foundation.               --
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--  Contains the routine for computing the image in based format of signed and
33--  unsigned integers whose size <= Integer'Size for use by Text_IO.Integer_IO
34--  and Text_IO.Modular_IO.
35
36with System.Unsigned_Types;
37
38package System.Img_BIU is
39   pragma Pure;
40
41   procedure Set_Image_Based_Integer
42     (V : Integer;
43      B : Natural;
44      W : Integer;
45      S : out String;
46      P : in out Natural);
47   --  Sets the signed image of V in based format, using base value B (2..16)
48   --  starting at S (P + 1), updating P to point to the last character stored.
49   --  The image includes a leading minus sign if necessary, but no leading
50   --  spaces unless W is positive, in which case leading spaces are output if
51   --  necessary to ensure that the output string is no less than W characters
52   --  long. The caller promises that the buffer is large enough and no check
53   --  is made for this. Constraint_Error will not necessarily be raised if
54   --  this is violated, since it is perfectly valid to compile this unit with
55   --  checks off.
56
57   procedure Set_Image_Based_Unsigned
58     (V : System.Unsigned_Types.Unsigned;
59      B : Natural;
60      W : Integer;
61      S : out String;
62      P : in out Natural);
63   --  Sets the unsigned image of V in based format, using base value B (2..16)
64   --  starting at S (P + 1), updating P to point to the last character stored.
65   --  The image includes no leading spaces unless W is positive, in which case
66   --  leading spaces are output if necessary to ensure that the output string
67   --  is no less than W characters long. The caller promises that the buffer
68   --  is large enough and no check is made for this. Constraint_Error will not
69   --  necessarily be raised if this is violated, since it is perfectly valid
70   --  to compile this unit with checks off).
71
72end System.Img_BIU;
73