gcc/ada/s-imgint.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --                       S Y S T E M . I M G _ I N T                        --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-2007, Free Software Foundation, Inc.         --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  19 -- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
  20 -- Boston, MA 02110-1301, USA.                                              --
  21 --                                                                          --
  22 -- As a special exception,  if other files  instantiate  generics from this --
  23 -- unit, or you link  this unit with other files  to produce an executable, --
  24 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  25 -- covered  by the  GNU  General  Public  License.  This exception does not --
  26 -- however invalidate  any other reasons why  the executable file  might be --
  27 -- covered by the  GNU Public License.                                      --
  28 --                                                                          --
  29 -- GNAT was originally developed  by the GNAT team at  New York University. --
  30 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  31 --                                                                          --
  32 ------------------------------------------------------------------------------
  33
  34 --  This package contains the routines for supporting the Image attribute for
  35 --  signed integer types up to Size Integer'Size, and also for conversion
  36 --  operations required in Text_IO.Integer_IO for such types.
  37
  38 package System.Img_Int is
  39    pragma Pure;
  40
  41    procedure Image_Integer
  42      (V : Integer;
  43       S : in out String;
  44       P : out Natural);
  45    --  Computes Integer'Image (V) and stores the result in S (1 .. P)
  46    --  setting the resulting value of P. The caller guarantees that S
  47    --  is long enough to hold the result, and that S'First is 1.
  48
  49    procedure Set_Image_Integer
  50      (V : Integer;
  51       S : in out String;
  52       P : in out Natural);
  53    --  Stores the image of V in S starting at S (P + 1), P is updated to point
  54    --  to the last character stored. The value stored is identical to the value
  55    --  of Integer'Image (V) except that no leading space is stored when V is
  56    --  non-negative. The caller guarantees that S is long enough to hold the
  57    --  result. S need not have a lower bound of 1.
  58
  59 end System.Img_Int;