gcc/ada/a-wtmoio.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUNTIME COMPONENTS                          --
   4 --                                                                          --
   5 --           A D A . W I D E _ T E X T _ I O . M O D U L A R _ I O          --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --                            $Revision: 1.4 $                              --
  10 --                                                                          --
  11 --   Copyright (C) 1992,1993,1994,1995,1996 Free Software Foundation, Inc.  --
  12 --                                                                          --
  13 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  14 -- terms of the  GNU General Public License as published  by the Free Soft- --
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  16 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  17 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  18 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  19 -- for  more details.  You should have  received  a copy of the GNU General --
  20 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  21 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  22 -- MA 02111-1307, USA.                                                      --
  23 --                                                                          --
  24 -- As a special exception,  if other files  instantiate  generics from this --
  25 -- unit, or you link  this unit with other files  to produce an executable, --
  26 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  27 -- covered  by the  GNU  General  Public  License.  This exception does not --
  28 -- however invalidate  any other reasons why  the executable file  might be --
  29 -- covered by the  GNU Public License.                                      --
  30 --                                                                          --
  31 -- GNAT was originally developed  by the GNAT team at  New York University. --
  32 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
  33 --                                                                          --
  34 ------------------------------------------------------------------------------
  35
  36 with Ada.Wide_Text_IO.Modular_Aux;
  37
  38 with System.Unsigned_Types; use System.Unsigned_Types;
  39 with System.WCh_Con;        use System.WCh_Con;
  40 with System.WCh_WtS;        use System.WCh_WtS;
  41
  42 package body Ada.Wide_Text_IO.Modular_IO is
  43
  44    subtype TFT is Ada.Wide_Text_IO.File_Type;
  45    --  File type required for calls to routines in Aux
  46
  47    package Aux renames Ada.Wide_Text_IO.Modular_Aux;
  48
  49    ---------
  50    -- Get --
  51    ---------
  52
  53    procedure Get
  54      (File  : in File_Type;
  55       Item  : out Num;
  56       Width : in Field := 0)
  57    is
  58    begin
  59       if Num'Size > Unsigned'Size then
  60          Aux.Get_LLU (TFT (File), Long_Long_Unsigned (Item), Width);
  61       else
  62          Aux.Get_Uns (TFT (File), Unsigned (Item), Width);
  63       end if;
  64
  65    exception
  66       when Constraint_Error => raise Data_Error;
  67    end Get;
  68
  69    procedure Get
  70      (Item  : out Num;
  71       Width : in Field := 0)
  72    is
  73    begin
  74       Get (Current_Input, Item, Width);
  75    end Get;
  76
  77    procedure Get
  78      (From : in Wide_String;
  79       Item : out Num;
  80       Last : out Positive)
  81    is
  82       S : constant String := Wide_String_To_String (From, WCEM_Upper);
  83       --  String on which we do the actual conversion. Note that the method
  84       --  used for wide character encoding is irrelevant, since if there is
  85       --  a character outside the Standard.Character range then the call to
  86       --  Aux.Gets will raise Data_Error in any case.
  87
  88    begin
  89       if Num'Size > Unsigned'Size then
  90          Aux.Gets_LLU (S, Long_Long_Unsigned (Item), Last);
  91       else
  92          Aux.Gets_Uns (S, Unsigned (Item), Last);
  93       end if;
  94
  95    exception
  96       when Constraint_Error => raise Data_Error;
  97    end Get;
  98
  99    ---------
 100    -- Put --
 101    ---------
 102
 103    procedure Put
 104      (File  : in File_Type;
 105       Item  : in Num;
 106       Width : in Field := Default_Width;
 107       Base  : in Number_Base := Default_Base)
 108    is
 109    begin
 110       if Num'Size > Unsigned'Size then
 111          Aux.Put_LLU (TFT (File), Long_Long_Unsigned (Item), Width, Base);
 112       else
 113          Aux.Put_Uns (TFT (File), Unsigned (Item), Width, Base);
 114       end if;
 115    end Put;
 116
 117    procedure Put
 118      (Item  : in Num;
 119       Width : in Field := Default_Width;
 120       Base  : in Number_Base := Default_Base)
 121    is
 122    begin
 123       Put (Current_Output, Item, Width, Base);
 124    end Put;
 125
 126    procedure Put
 127      (To   : out Wide_String;
 128       Item : in Num;
 129       Base : in Number_Base := Default_Base)
 130    is
 131       S : String (To'First .. To'Last);
 132
 133    begin
 134       if Num'Size > Unsigned'Size then
 135          Aux.Puts_LLU (S, Long_Long_Unsigned (Item), Base);
 136       else
 137          Aux.Puts_Uns (S, Unsigned (Item), Base);
 138       end if;
 139
 140       for J in S'Range loop
 141          To (J) := Wide_Character'Val (Character'Pos (S (J)));
 142       end loop;
 143    end Put;
 144
 145 end Ada.Wide_Text_IO.Modular_IO;