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1996-01-30
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------------------------------------------------------------------------------
-- --
-- GNAT RUNTIME COMPONENTS --
-- --
-- S Y S T E M . I M G _ U N S --
-- --
-- S p e c --
-- --
-- $Revision: 1.6 $ --
-- --
-- Copyright (c) 1992,1993,1994 NYU, All Rights Reserved --
-- --
-- The GNAT library is free software; you can redistribute it and/or modify --
-- it under terms of the GNU Library General Public License as published by --
-- the Free Software Foundation; either version 2, or (at your option) any --
-- later version. The GNAT library is distributed in the hope that it will --
-- be useful, but WITHOUT ANY WARRANTY; without even the implied warranty --
-- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- Library General Public License for more details. You should have --
-- received a copy of the GNU Library General Public License along with --
-- the GNAT library; see the file COPYING.LIB. If not, write to the Free --
-- Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. --
-- --
------------------------------------------------------------------------------
-- This package contains the routines for supporting the Image attribute for
-- modular integer types up to Size Modular'Size, and also for conversion
-- operations required in Text_IO.Modular_IO for such types.
with System.Unsigned_Types;
package System.Img_Uns is
pragma Preelaborate (Img_Uns);
function Image_Unsigned
(V : System.Unsigned_Types.Unsigned;
S : access String)
return Natural;
-- Computes Unsigned'Image (V) and stores the result in S (1 .. N) where
-- N is the length of the image string. The value of N is returned as
-- the result. The caller ensures that the string is long enough.
procedure Set_Image_Unsigned
(V : System.Unsigned_Types.Unsigned;
S : out String;
P : in out Natural);
-- Sets the image of V starting at S (P + 1) with no leading spaces (i.e.
-- Text_IO format where Width = 0), starting at S (P + 1), updating P
-- to point to the last character stored. The caller promises that the
-- buffer is large enough and no check is made for this (Constraint_Error
-- will not be necessarily raised if this is violated since it is perfectly
-- valid to compile this unit with checks off).
end System.Img_Uns;