gcc/ada/a-wtflio.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUNTIME 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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  25 -- covered  by the  GNU  General  Public  License.  This exception does not --
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  30 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
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  32 ------------------------------------------------------------------------------
  33
  34 with Ada.Wide_Text_IO.Float_Aux;
  35 with System.WCh_Con; use System.WCh_Con;
  36 with System.WCh_WtS; use System.WCh_WtS;
  37
  38 package body Ada.Wide_Text_IO.Float_IO is
  39
  40    subtype TFT is Ada.Wide_Text_IO.File_Type;
  41    --  File type required for calls to routines in Aux
  42
  43    package Aux renames Ada.Wide_Text_IO.Float_Aux;
  44
  45    ---------
  46    -- Get --
  47    ---------
  48
  49    procedure Get
  50      (File  : in File_Type;
  51       Item  : out Num;
  52       Width : in Field := 0)
  53    is
  54    begin
  55       Aux.Get (TFT (File), Long_Long_Float (Item), Width);
  56
  57    exception
  58       when Constraint_Error => raise Data_Error;
  59    end Get;
  60
  61    procedure Get
  62      (Item  : out Num;
  63       Width : in Field := 0)
  64    is
  65    begin
  66       Get (Current_Input, Item, Width);
  67    end Get;
  68
  69    procedure Get
  70      (From : in Wide_String;
  71       Item : out Num;
  72       Last : out Positive)
  73    is
  74       S : constant String := Wide_String_To_String (From, WCEM_Upper);
  75       --  String on which we do the actual conversion. Note that the method
  76       --  used for wide character encoding is irrelevant, since if there is
  77       --  a character outside the Standard.Character range then the call to
  78       --  Aux.Gets will raise Data_Error in any case.
  79
  80    begin
  81       Aux.Gets (S, Long_Long_Float (Item), Last);
  82
  83    exception
  84       when Constraint_Error => raise Data_Error;
  85    end Get;
  86
  87    ---------
  88    -- Put --
  89    ---------
  90
  91    procedure Put
  92      (File : in File_Type;
  93       Item : in Num;
  94       Fore : in Field := Default_Fore;
  95       Aft  : in Field := Default_Aft;
  96       Exp  : in Field := Default_Exp)
  97    is
  98    begin
  99       Aux.Put (TFT (File), Long_Long_Float (Item), Fore, Aft, Exp);
 100    end Put;
 101
 102    procedure Put
 103      (Item : in Num;
 104       Fore : in Field := Default_Fore;
 105       Aft  : in Field := Default_Aft;
 106       Exp  : in Field := Default_Exp)
 107    is
 108    begin
 109       Put (Current_Output, Item, Fore, Aft, Exp);
 110    end Put;
 111
 112    procedure Put
 113      (To   : out Wide_String;
 114       Item : in Num;
 115       Aft  : in Field := Default_Aft;
 116       Exp  : in Field := Default_Exp)
 117    is
 118       S : String (To'First .. To'Last);
 119
 120    begin
 121       Aux.Puts (S, Long_Long_Float (Item), Aft, Exp);
 122
 123       for J in S'Range loop
 124          To (J) := Wide_Character'Val (Character'Pos (S (J)));
 125       end loop;
 126    end Put;
 127
 128 end Ada.Wide_Text_IO.Float_IO;