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------------------------------------------------------------------------------

--                                                                          --

--                         GNAT RUN-TIME COMPONENTS                         --

--                                                                          --

--           A D A . W I D E _ T E X T _ IO . C O M P L E X _ I O           --

--                                                                          --

--                                 B o d y                                  --

--                                                                          --

--          Copyright (C) 1992-2009, Free Software Foundation, Inc.         --

--                                                                          --

-- GNAT is free software;  you can  redistribute it  and/or modify it under --

-- terms of the  GNU General Public License as published  by the Free Soft- --

-- ware  Foundation;  either version 3,  or (at your option) any later ver- --

-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --

-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --

-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --

--                                                                          --

-- As a special exception under Section 7 of GPL version 3, you are granted --

-- additional permissions described in the GCC Runtime Library Exception,   --

-- version 3.1, as published by the Free Software Foundation.               --

--                                                                          --

-- You should have received a copy of the GNU General Public License and    --

-- a copy of the GCC Runtime Library Exception along with this program;     --

-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --

-- <http://www.gnu.org/licenses/>.                                          --

--                                                                          --

-- GNAT was originally developed  by the GNAT team at  New York University. --

-- Extensive contributions were provided by Ada Core Technologies Inc.      --

--                                                                          --

------------------------------------------------------------------------------

with Ada.Wide_Text_IO.Complex_Aux;

with System.WCh_Con; use System.WCh_Con;

with System.WCh_WtS; use System.WCh_WtS;

with Ada.Unchecked_Conversion;

package body Ada.Wide_Text_IO.Complex_IO is

   package Aux renames Ada.Wide_Text_IO.Complex_Aux;

   subtype LLF is Long_Long_Float;

   --  Type used for calls to routines in Aux

   function TFT is new

     Ada.Unchecked_Conversion (File_Type, Ada.Wide_Text_IO.File_Type);

   --  This unchecked conversion is to get around a visibility bug in

   --  GNAT version 2.04w. It should be possible to simply use the

   --  subtype declared above and do normal checked conversions.

   ---------

   -- Get --

   ---------

   procedure Get

     (File  : File_Type;

      Item  : out Complex;

      Width : Field := 0)

   is

      Real_Item : Real'Base;

      Imag_Item : Real'Base;

   begin

      Aux.Get (TFT (File), LLF (Real_Item), LLF (Imag_Item), Width);

      Item := (Real_Item, Imag_Item);

   exception

      when Constraint_Error => raise Data_Error;

   end Get;

   ---------

   -- Get --

   ---------

   procedure Get

     (Item  : out Complex;

      Width : Field := 0)

   is

   begin

      Get (Current_Input, Item, Width);

   end Get;

   ---------

   -- Get --

   ---------

   procedure Get

     (From : Wide_String;

      Item : out Complex;

      Last : out Positive)

   is

      Real_Item : Real'Base;

      Imag_Item : Real'Base;

      S : constant String := Wide_String_To_String (From, WCEM_Upper);

      --  String on which we do the actual conversion. Note that the method

      --  used for wide character encoding is irrelevant, since if there is

      --  a character outside the Standard.Character range then the call to

      --  Aux.Gets will raise Data_Error in any case.

   begin

      Aux.Gets (S, LLF (Real_Item), LLF (Imag_Item), Last);

      Item := (Real_Item, Imag_Item);

   exception

      when Data_Error => raise Constraint_Error;

   end Get;

   ---------

   -- Put --

   ---------

   procedure Put

     (File : File_Type;

      Item : Complex;

      Fore : Field := Default_Fore;

      Aft  : Field := Default_Aft;

      Exp  : Field := Default_Exp)

   is

   begin

      Aux.Put (TFT (File), LLF (Re (Item)), LLF (Im (Item)), Fore, Aft, Exp);

   end Put;

   ---------

   -- Put --

   ---------

   procedure Put

     (Item : Complex;

      Fore : Field := Default_Fore;

      Aft  : Field := Default_Aft;

      Exp  : Field := Default_Exp)

   is

   begin

      Put (Current_Output, Item, Fore, Aft, Exp);

   end Put;

   ---------

   -- Put --

   ---------

   procedure Put

     (To   : out Wide_String;

      Item : Complex;

      Aft  : Field := Default_Aft;

      Exp  : Field := Default_Exp)

   is

      S : String (To'First .. To'Last);

   begin

      Aux.Puts (S, LLF (Re (Item)), LLF (Im (Item)), Aft, Exp);

      for J in S'Range loop

         To (J) := Wide_Character'Val (Character'Pos (S (J)));

      end loop;

   end Put;

end Ada.Wide_Text_IO.Complex_IO;