------------------------------------------------------------------------------
-- --
--- GNAT RUNTIME COMPONENTS --
+-- GNAT RUN-TIME 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. --
+-- 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 2, or (at your option) any later ver- --
+-- 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. 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. --
+-- 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. --
-- --
--- 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. --
+-- 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. --
--- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- Image_Integer --
-------------------
- function Image_Integer (V : Integer) return String is
- P : Natural;
- S : String (1 .. Integer'Width);
+ 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
- P := 1;
S (P) := ' ';
+ Set_Digits (-V);
else
- P := 0;
+ S (P) := '-';
+ Set_Digits (V);
end if;
-
- Set_Image_Integer (V, S, P);
- return S (1 .. P);
end Image_Integer;
-----------------------
-----------------------
procedure Set_Image_Integer
- (V : Integer;
- S : out String;
- P : in out Natural)
+ (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);
begin
if V >= 0 then
Set_Digits (-V);
-
else
P := P + 1;
S (P) := '-';
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