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------------------------------------------------------------------------------
-- --
-- GNAT RUNTIME COMPONENTS --
-- --
-- S Y S T E M . I M G _ I N T --
-- --
-- B o d y --
-- --
-- --
-- Copyright (C) 1992,1993,1994 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 2, 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. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
-- --
------------------------------------------------------------------------------
package body System.Img_Int is
-------------------
-- Image_Integer --
-------------------
function Image_Integer (V : Integer) return String is
P : Natural;
S : String (1 .. Integer'Width);
begin
if V >= 0 then
P := 1;
S (P) := ' ';
else
P := 0;
end if;
Set_Image_Integer (V, S, P);
return S (1 .. P);
end Image_Integer;
-----------------------
-- Set_Image_Integer --
-----------------------
procedure Set_Image_Integer
(V : Integer;
S : out String;
P : in out Natural)
is
procedure Set_Digits (T : Integer);
-- Set digits of absolute value of T, which is zero or negative. We work
-- with the negative of the value so that the largest negative number is
-- not a special case.
procedure Set_Digits (T : Integer) is
begin
if T <= -10 then
Set_Digits (T / 10);
P := P + 1;
S (P) := Character'Val (48 - (T rem 10));
else
P := P + 1;
S (P) := Character'Val (48 - T);
end if;
end Set_Digits;
-- Start of processing for Set_Image_Integer
begin
if V >= 0 then
Set_Digits (-V);
else
P := P + 1;
S (P) := '-';
Set_Digits (V);
end if;
end Set_Image_Integer;
end System.Img_Int;
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