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1996-09-28
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4KB
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64 lines
------------------------------------------------------------------------------
-- --
-- GNAT RUNTIME COMPONENTS --
-- --
-- S Y S T E M . I M G _ W I U --
-- --
-- S p e c --
-- --
-- $Revision: 1.3 $ --
-- --
-- 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. --
-- --
------------------------------------------------------------------------------
-- Contains the routine for computing the image of signed and unsigned
-- integers whose size <= Integer'Size for use by Text_IO.Integer_IO
-- and Text_IO.Modular_IO.
with System.Unsigned_Types;
package System.Img_WIU is
pragma Preelaborate (Img_WIU);
procedure Set_Image_Width_Integer
(V : Integer;
W : Integer;
S : out String;
P : in out Natural);
-- Sets the signed image of V in decimal format, starting at S (P + 1),
-- updating P to point to the last character stored. The image includes
-- a leading minus sign if necessary, but no leading spaces unless W is
-- positive, in which case leading spaces are output if necessary to ensure
-- that the output string is no less than W characters long. The caller
-- promises that the buffer is large enough and no check is made for this.
-- Constraint_Error will not necessarily be raised if this is violated,
-- since it is perfectly valid to compile this unit with checks off.
procedure Set_Image_Width_Unsigned
(V : System.Unsigned_Types.Unsigned;
W : Integer;
S : out String;
P : in out Natural);
-- Sets the unsigned image of V in decimal format, starting at S (P + 1),
-- updating P to point to the last character stored. The image includes no
-- leading spaces unless W is positive, in which case leading spaces are
-- output if necessary to ensure that the output string is no less than
-- W characters long. The caller promises that the buffer is large enough
-- and no check is made for this. Constraint_Error will not necessarily be
-- raised if this is violated, since it is perfectly valid to compile this
-- unit with checks off.
end System.Img_WIU;