gcc/ada/libgnat/a-wtfiio.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --     A D A . T E X T _ I O . W I D E _ T E X T _ I O . F I X E D _ I O    --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-2017, 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 3,  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.                                     --
  17 --                                                                          --
  18 -- As a special exception under Section 7 of GPL version 3, you are granted --
  19 -- additional permissions described in the GCC Runtime Library Exception,   --
  20 -- version 3.1, as published by the Free Software Foundation.               --
  21 --                                                                          --
  22 -- You should have received a copy of the GNU General Public License and    --
  23 -- a copy of the GCC Runtime Library Exception along with this program;     --
  24 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
  25 -- <http://www.gnu.org/licenses/>.                                          --
  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 with System.WCh_Con; use System.WCh_Con;
  34 with System.WCh_WtS; use System.WCh_WtS;
  35
  36 package body Ada.Wide_Text_IO.Fixed_IO is
  37
  38    subtype TFT is Ada.Wide_Text_IO.File_Type;
  39    --  File type required for calls to routines in Aux
  40
  41    package Aux renames Ada.Wide_Text_IO.Float_Aux;
  42
  43    ---------
  44    -- Get --
  45    ---------
  46
  47    procedure Get
  48      (File  : File_Type;
  49       Item  : out Num;
  50       Width : Field := 0)
  51    is
  52    begin
  53       Aux.Get (TFT (File), Long_Long_Float (Item), Width);
  54
  55    exception
  56       when Constraint_Error => raise Data_Error;
  57    end Get;
  58
  59    procedure Get
  60      (Item  : out Num;
  61       Width : Field := 0)
  62    is
  63    begin
  64       Get (Current_Input, Item, Width);
  65    end Get;
  66
  67    procedure Get
  68      (From : Wide_String;
  69       Item : out Num;
  70       Last : out Positive)
  71    is
  72       S : constant String := Wide_String_To_String (From, WCEM_Upper);
  73       --  String on which we do the actual conversion. Note that the method
  74       --  used for wide character encoding is irrelevant, since if there is
  75       --  a character outside the Standard.Character range then the call to
  76       --  Aux.Gets will raise Data_Error in any case.
  77
  78    begin
  79       Aux.Gets (S, Long_Long_Float (Item), Last);
  80
  81    exception
  82       when Constraint_Error => raise Data_Error;
  83    end Get;
  84
  85    ---------
  86    -- Put --
  87    ---------
  88
  89    procedure Put
  90      (File : File_Type;
  91       Item : Num;
  92       Fore : Field := Default_Fore;
  93       Aft  : Field := Default_Aft;
  94       Exp  : Field := Default_Exp)
  95    is
  96    begin
  97       Aux.Put (TFT (File), Long_Long_Float (Item), Fore, Aft, Exp);
  98    end Put;
  99
 100    procedure Put
 101      (Item : Num;
 102       Fore : Field := Default_Fore;
 103       Aft  : Field := Default_Aft;
 104       Exp  : Field := Default_Exp)
 105    is
 106    begin
 107       Put (Current_Output, Item, Fore, Aft, Exp);
 108    end Put;
 109
 110    procedure Put
 111      (To   : out Wide_String;
 112       Item : Num;
 113       Aft  : Field := Default_Aft;
 114       Exp  : Field := Default_Exp)
 115    is
 116       S : String (To'First .. To'Last);
 117
 118    begin
 119       Aux.Puts (S, Long_Long_Float (Item), Aft, Exp);
 120
 121       for J in S'Range loop
 122          To (J) := Wide_Character'Val (Character'Pos (S (J)));
 123       end loop;
 124    end Put;
 125
 126 end Ada.Wide_Text_IO.Fixed_IO;