gcc/ada/a-wtflio.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --             A D A . W I D E _ T E X T _ I O . F L O A T _ I O            --
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   7 --                                 B o d y                                  --
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   9 --          Copyright (C) 1992-2009, Free Software Foundation, Inc.         --
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  19 -- additional permissions described in the GCC Runtime Library Exception,   --
  20 -- version 3.1, as published by the Free Software Foundation.               --
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  22 -- You should have received a copy of the GNU General Public License and    --
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  24 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
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  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 with Ada.Wide_Text_IO.Float_Aux;
  33
  34 with System.WCh_Con; use System.WCh_Con;
  35 with System.WCh_WtS; use System.WCh_WtS;
  36
  37 package body Ada.Wide_Text_IO.Float_IO is
  38
  39    subtype TFT is Ada.Wide_Text_IO.File_Type;
  40    --  File type required for calls to routines in Aux
  41
  42    package Aux renames Ada.Wide_Text_IO.Float_Aux;
  43
  44    ---------
  45    -- Get --
  46    ---------
  47
  48    procedure Get
  49      (File  : File_Type;
  50       Item  : out Num;
  51       Width : Field := 0)
  52    is
  53    begin
  54       Aux.Get (TFT (File), Long_Long_Float (Item), Width);
  55
  56    exception
  57       when Constraint_Error => raise Data_Error;
  58    end Get;
  59
  60    procedure Get
  61      (Item  : out Num;
  62       Width : Field := 0)
  63    is
  64    begin
  65       Get (Current_Input, Item, Width);
  66    end Get;
  67
  68    procedure Get
  69      (From : Wide_String;
  70       Item : out Num;
  71       Last : out Positive)
  72    is
  73       S : constant String := Wide_String_To_String (From, WCEM_Upper);
  74       --  String on which we do the actual conversion. Note that the method
  75       --  used for wide character encoding is irrelevant, since if there is
  76       --  a character outside the Standard.Character range then the call to
  77       --  Aux.Gets will raise Data_Error in any case.
  78
  79    begin
  80       Aux.Gets (S, Long_Long_Float (Item), Last);
  81
  82    exception
  83       when Constraint_Error => raise Data_Error;
  84    end Get;
  85
  86    ---------
  87    -- Put --
  88    ---------
  89
  90    procedure Put
  91      (File : File_Type;
  92       Item : Num;
  93       Fore : Field := Default_Fore;
  94       Aft  : Field := Default_Aft;
  95       Exp  : Field := Default_Exp)
  96    is
  97    begin
  98       Aux.Put (TFT (File), Long_Long_Float (Item), Fore, Aft, Exp);
  99    end Put;
 100
 101    procedure Put
 102      (Item : Num;
 103       Fore : Field := Default_Fore;
 104       Aft  : Field := Default_Aft;
 105       Exp  : Field := Default_Exp)
 106    is
 107    begin
 108       Put (Current_Output, Item, Fore, Aft, Exp);
 109    end Put;
 110
 111    procedure Put
 112      (To   : out Wide_String;
 113       Item : Num;
 114       Aft  : Field := Default_Aft;
 115       Exp  : Field := Default_Exp)
 116    is
 117       S : String (To'First .. To'Last);
 118
 119    begin
 120       Aux.Puts (S, Long_Long_Float (Item), Aft, Exp);
 121
 122       for J in S'Range loop
 123          To (J) := Wide_Character'Val (Character'Pos (S (J)));
 124       end loop;
 125    end Put;
 126
 127 end Ada.Wide_Text_IO.Float_IO;