gcc/ada/s-imguns.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUNTIME COMPONENTS                          --
   4 --                                                                          --
   5 --                       S Y S T E M . I M G _ U N S                        --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --           Copyright (C) 1992-2000 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,  59 Temple Place - Suite 330,  Boston, --
  20 -- MA 02111-1307, 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 --  modular integer types up to Size Modular'Size, and also for conversion
  36 --  operations required in Text_IO.Modular_IO for such types.
  37
  38 with System.Unsigned_Types;
  39
  40 package System.Img_Uns is
  41 pragma Pure (Img_Uns);
  42
  43    function Image_Unsigned
  44      (V    : System.Unsigned_Types.Unsigned)
  45       return String;
  46    --  Computes Unsigned'Image (V) and returns the result.
  47
  48    procedure Set_Image_Unsigned
  49      (V : System.Unsigned_Types.Unsigned;
  50       S : out String;
  51       P : in out Natural);
  52    --  Sets the image of V starting at S (P + 1) with no leading spaces (i.e.
  53    --  Text_IO format where Width = 0), starting at S (P + 1), updating P
  54    --  to point to the last character stored. The caller promises that the
  55    --  buffer is large enough and no check is made for this (Constraint_Error
  56    --  will not be necessarily raised if this is violated since it is perfectly
  57    --  valid to compile this unit with checks off).
  58
  59 end System.Img_Uns;