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+------------------------------------------------------------------------------
+-- --
+-- GNAT RUN-TIME COMPONENTS --
+-- --
+-- S Y S T E M . I M G _ I N T --
+-- --
+-- B o d y --
+-- --
+-- Copyright (C) 1992-2009, 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 3, 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. --
+-- --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception, --
+-- version 3.1, as published by the Free Software Foundation. --
+-- --
+-- You should have received a copy of the GNU General Public License and --
+-- a copy of the GCC Runtime Library Exception along with this program; --
+-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
+-- <http://www.gnu.org/licenses/>. --
+-- --
+-- GNAT was originally developed by the GNAT team at New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
+-- --
+------------------------------------------------------------------------------
+
+package body System.Img_Int is
+
+ -------------------
+ -- Image_Integer --
+ -------------------
+
+ procedure Image_Integer
+ (V : Integer;
+ S : in out String;
+ P : out Natural)
+ is
+ pragma Assert (S'First = 1);
+
+ 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.
+
+ ----------------
+ -- Set_Digits --
+ ----------------
+
+ 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 Image_Integer
+
+ begin
+ P := 1;
+
+ if V >= 0 then
+ S (P) := ' ';
+ Set_Digits (-V);
+ else
+ S (P) := '-';
+ Set_Digits (V);
+ end if;
+ end Image_Integer;
+
+ -----------------------
+ -- Set_Image_Integer --
+ -----------------------
+
+ procedure Set_Image_Integer
+ (V : Integer;
+ S : in 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.
+
+ ----------------
+ -- Set_Digits --
+ ----------------
+
+ 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;