gcc/ada/s-imguns.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME 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) 1992-2014, 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 3,  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.                                     --
  17 --                                                                          --
  18 -- As a special exception under Section 7 of GPL version 3, you are granted --
  19 -- additional permissions described in the GCC Runtime Library Exception,   --
  20 -- version 3.1, as published by the Free Software Foundation.               --
  21 --                                                                          --
  22 -- You should have received a copy of the GNU General Public License and    --
  23 -- a copy of the GCC Runtime Library Exception along with this program;     --
  24 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
  25 -- <http://www.gnu.org/licenses/>.                                          --
  26 --                                                                          --
  27 -- GNAT was originally developed  by the GNAT team at  New York University. --
  28 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  29 --                                                                          --
  30 ------------------------------------------------------------------------------
  31
  32 --  This package contains the routines for supporting the Image attribute for
  33 --  modular integer types up to size Unsigned'Size, and also for conversion
  34 --  operations required in Text_IO.Modular_IO for such types.
  35
  36 with System.Unsigned_Types;
  37
  38 package System.Img_Uns is
  39    pragma Pure;
  40
  41    procedure Image_Unsigned
  42      (V : System.Unsigned_Types.Unsigned;
  43       S : in out String;
  44       P : out Natural);
  45    pragma Inline (Image_Unsigned);
  46    --  Computes Unsigned'Image (V) and stores the result in S (1 .. P) setting
  47    --  the resulting value of P. The caller guarantees that S is long enough to
  48    --  hold the result, and that S'First is 1.
  49
  50    procedure Set_Image_Unsigned
  51      (V : System.Unsigned_Types.Unsigned;
  52       S : in out String;
  53       P : in out Natural);
  54    --  Stores the image of V in S starting at S (P + 1), P is updated to point
  55    --  to the last character stored. The value stored is identical to the value
  56    --  of Unsigned'Image (V) except that no leading space is stored. The caller
  57    --  guarantees that S is long enough to hold the result. S need not have a
  58    --  lower bound of 1.
  59
  60 end System.Img_Uns;