gcc/ada/a-wtmoio.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME 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 --           Copyright (C) 1992-2006, 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- --
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  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
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  18 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
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  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 with Ada.Wide_Text_IO.Modular_Aux;
  35
  36 with System.Unsigned_Types; use System.Unsigned_Types;
  37 with System.WCh_Con;        use System.WCh_Con;
  38 with System.WCh_WtS;        use System.WCh_WtS;
  39
  40 package body Ada.Wide_Text_IO.Modular_IO is
  41
  42    subtype TFT is Ada.Wide_Text_IO.File_Type;
  43    --  File type required for calls to routines in Aux
  44
  45    package Aux renames Ada.Wide_Text_IO.Modular_Aux;
  46
  47    ---------
  48    -- Get --
  49    ---------
  50
  51    procedure Get
  52      (File  : File_Type;
  53       Item  : out Num;
  54       Width : Field := 0)
  55    is
  56    begin
  57       if Num'Size > Unsigned'Size then
  58          Aux.Get_LLU (TFT (File), Long_Long_Unsigned (Item), Width);
  59       else
  60          Aux.Get_Uns (TFT (File), Unsigned (Item), Width);
  61       end if;
  62
  63    exception
  64       when Constraint_Error => raise Data_Error;
  65    end Get;
  66
  67    procedure Get
  68      (Item  : out Num;
  69       Width : Field := 0)
  70    is
  71    begin
  72       Get (Current_Input, Item, Width);
  73    end Get;
  74
  75    procedure Get
  76      (From : Wide_String;
  77       Item : out Num;
  78       Last : out Positive)
  79    is
  80       S : constant String := Wide_String_To_String (From, WCEM_Upper);
  81       --  String on which we do the actual conversion. Note that the method
  82       --  used for wide character encoding is irrelevant, since if there is
  83       --  a character outside the Standard.Character range then the call to
  84       --  Aux.Gets will raise Data_Error in any case.
  85
  86    begin
  87       if Num'Size > Unsigned'Size then
  88          Aux.Gets_LLU (S, Long_Long_Unsigned (Item), Last);
  89       else
  90          Aux.Gets_Uns (S, Unsigned (Item), Last);
  91       end if;
  92
  93    exception
  94       when Constraint_Error => raise Data_Error;
  95    end Get;
  96
  97    ---------
  98    -- Put --
  99    ---------
 100
 101    procedure Put
 102      (File  : File_Type;
 103       Item  : Num;
 104       Width : Field := Default_Width;
 105       Base  : Number_Base := Default_Base)
 106    is
 107    begin
 108       if Num'Size > Unsigned'Size then
 109          Aux.Put_LLU (TFT (File), Long_Long_Unsigned (Item), Width, Base);
 110       else
 111          Aux.Put_Uns (TFT (File), Unsigned (Item), Width, Base);
 112       end if;
 113    end Put;
 114
 115    procedure Put
 116      (Item  : Num;
 117       Width : Field := Default_Width;
 118       Base  : Number_Base := Default_Base)
 119    is
 120    begin
 121       Put (Current_Output, Item, Width, Base);
 122    end Put;
 123
 124    procedure Put
 125      (To   : out Wide_String;
 126       Item : Num;
 127       Base : Number_Base := Default_Base)
 128    is
 129       S : String (To'First .. To'Last);
 130
 131    begin
 132       if Num'Size > Unsigned'Size then
 133          Aux.Puts_LLU (S, Long_Long_Unsigned (Item), Base);
 134       else
 135          Aux.Puts_Uns (S, Unsigned (Item), Base);
 136       end if;
 137
 138       for J in S'Range loop
 139          To (J) := Wide_Character'Val (Character'Pos (S (J)));
 140       end loop;
 141    end Put;
 142
 143 end Ada.Wide_Text_IO.Modular_IO;