1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME COMPONENTS --
5 -- S Y S T E M . I M G _ B I U --
9 -- Copyright (C) 1992-2005 Free Software Foundation, Inc. --
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 2, 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. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
20 -- Boston, MA 02110-1301, USA. --
22 -- As a special exception, if other files instantiate generics from this --
23 -- unit, or you link this unit with other files to produce an executable, --
24 -- this unit does not by itself cause the resulting executable to be --
25 -- covered by the GNU General Public License. This exception does not --
26 -- however invalidate any other reasons why the executable file might be --
27 -- covered by the GNU Public License. --
29 -- GNAT was originally developed by the GNAT team at New York University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
32 ------------------------------------------------------------------------------
34 -- Contains the routine for computing the image in based format of signed and
35 -- unsigned integers whose size <= Integer'Size for use by Text_IO.Integer_IO
36 -- and Text_IO.Modular_IO.
38 with System.Unsigned_Types;
40 package System.Img_BIU is
43 procedure Set_Image_Based_Integer
49 -- Sets the signed image of V in based format, using base value B (2..16)
50 -- starting at S (P + 1), updating P to point to the last character stored.
51 -- The image includes a leading minus sign if necessary, but no leading
52 -- spaces unless W is positive, in which case leading spaces are output if
53 -- necessary to ensure that the output string is no less than W characters
54 -- long. The caller promises that the buffer is large enough and no check
55 -- is made for this. Constraint_Error will not necessarily be raised if
56 -- this is violated, since it is perfectly valid to compile this unit with
59 procedure Set_Image_Based_Unsigned
60 (V : System.Unsigned_Types.Unsigned;
65 -- Sets the unsigned image of V in based format, using base value B (2..16)
66 -- starting at S (P + 1), updating P to point to the last character stored.
67 -- The image includes no leading spaces unless W is positive, in which case
68 -- leading spaces are output if necessary to ensure that the output string
69 -- is no less than W characters long. The caller promises that the buffer
70 -- is large enough and no check is made for this. Constraint_Error will not
71 -- necessarily be raised if this is violated, since it is perfectly valid
72 -- to compile this unit with checks off).