gcc/ada/s-imglli.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --                       S Y S T E M . I M G _ L L I                        --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   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 package body System.Img_LLI is
  35
  36    -----------------------------
  37    -- Image_Long_Long_Integer --
  38    -----------------------------
  39
  40    procedure Image_Long_Long_Integer
  41      (V : Long_Long_Integer;
  42       S : in out String;
  43       P : out Natural)
  44    is
  45       pragma Assert (S'First = 1);
  46
  47    begin
  48       if V >= 0 then
  49          S (1) := ' ';
  50          P := 1;
  51       else
  52          P := 0;
  53       end if;
  54
  55       Set_Image_Long_Long_Integer (V, S, P);
  56    end Image_Long_Long_Integer;
  57
  58    ------------------------------
  59    -- Set_Image_Long_Long_Integer --
  60    -----------------------------
  61
  62    procedure Set_Image_Long_Long_Integer
  63      (V : Long_Long_Integer;
  64       S : in out String;
  65       P : in out Natural)
  66    is
  67       procedure Set_Digits (T : Long_Long_Integer);
  68       --  Set digits of absolute value of T, which is zero or negative. We work
  69       --  with the negative of the value so that the largest negative number is
  70       --  not a special case.
  71
  72       ----------------
  73       -- Set_Digits --
  74       ----------------
  75
  76       procedure Set_Digits (T : Long_Long_Integer) is
  77       begin
  78          if T <= -10 then
  79             Set_Digits (T / 10);
  80             P := P + 1;
  81             S (P) := Character'Val (48 - (T rem 10));
  82          else
  83             P := P + 1;
  84             S (P) := Character'Val (48 - T);
  85          end if;
  86       end Set_Digits;
  87
  88    --  Start of processing for Set_Image_Long_Long_Integer
  89
  90    begin
  91       if V >= 0 then
  92          Set_Digits (-V);
  93       else
  94          P := P + 1;
  95          S (P) := '-';
  96          Set_Digits (V);
  97       end if;
  98    end Set_Image_Long_Long_Integer;
  99
 100 end System.Img_LLI;