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1 281 jeremybenn
------------------------------------------------------------------------------
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--                                                                          --
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--                         GNAT RUN-TIME COMPONENTS                         --
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--                                                                          --
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--           A D A . W I D E _ T E X T _ IO . C O M P L E X _ I O           --
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--                                                                          --
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--                                 B o d y                                  --
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--                                                                          --
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--          Copyright (C) 1992-2009, Free Software Foundation, Inc.         --
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--                                                                          --
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-- GNAT is free software;  you can  redistribute it  and/or modify it under --
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-- terms of the  GNU General Public License as published  by the Free Soft- --
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-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
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-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
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--                                                                          --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception,   --
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-- version 3.1, as published by the Free Software Foundation.               --
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--                                                                          --
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-- You should have received a copy of the GNU General Public License and    --
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-- a copy of the GCC Runtime Library Exception along with this program;     --
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-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
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-- <http://www.gnu.org/licenses/>.                                          --
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--                                                                          --
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-- GNAT was originally developed  by the GNAT team at  New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc.      --
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--                                                                          --
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------------------------------------------------------------------------------
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with Ada.Wide_Text_IO.Complex_Aux;
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with System.WCh_Con; use System.WCh_Con;
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with System.WCh_WtS; use System.WCh_WtS;
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with Ada.Unchecked_Conversion;
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package body Ada.Wide_Text_IO.Complex_IO is
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   package Aux renames Ada.Wide_Text_IO.Complex_Aux;
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   subtype LLF is Long_Long_Float;
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   --  Type used for calls to routines in Aux
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   function TFT is new
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     Ada.Unchecked_Conversion (File_Type, Ada.Wide_Text_IO.File_Type);
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   --  This unchecked conversion is to get around a visibility bug in
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   --  GNAT version 2.04w. It should be possible to simply use the
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   --  subtype declared above and do normal checked conversions.
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   ---------
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   -- Get --
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   ---------
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   procedure Get
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     (File  : File_Type;
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      Item  : out Complex;
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      Width : Field := 0)
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   is
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      Real_Item : Real'Base;
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      Imag_Item : Real'Base;
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   begin
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      Aux.Get (TFT (File), LLF (Real_Item), LLF (Imag_Item), Width);
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      Item := (Real_Item, Imag_Item);
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   exception
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      when Constraint_Error => raise Data_Error;
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   end Get;
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   ---------
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   -- Get --
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   ---------
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   procedure Get
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     (Item  : out Complex;
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      Width : Field := 0)
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   is
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   begin
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      Get (Current_Input, Item, Width);
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   end Get;
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   ---------
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   -- Get --
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   ---------
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   procedure Get
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     (From : Wide_String;
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      Item : out Complex;
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      Last : out Positive)
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   is
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      Real_Item : Real'Base;
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      Imag_Item : Real'Base;
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      S : constant String := Wide_String_To_String (From, WCEM_Upper);
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      --  String on which we do the actual conversion. Note that the method
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      --  used for wide character encoding is irrelevant, since if there is
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      --  a character outside the Standard.Character range then the call to
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      --  Aux.Gets will raise Data_Error in any case.
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   begin
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      Aux.Gets (S, LLF (Real_Item), LLF (Imag_Item), Last);
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      Item := (Real_Item, Imag_Item);
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   exception
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      when Data_Error => raise Constraint_Error;
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   end Get;
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   ---------
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   -- Put --
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   ---------
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   procedure Put
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     (File : File_Type;
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      Item : Complex;
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      Fore : Field := Default_Fore;
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      Aft  : Field := Default_Aft;
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      Exp  : Field := Default_Exp)
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   is
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   begin
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      Aux.Put (TFT (File), LLF (Re (Item)), LLF (Im (Item)), Fore, Aft, Exp);
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   end Put;
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   ---------
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   -- Put --
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   ---------
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   procedure Put
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     (Item : Complex;
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      Fore : Field := Default_Fore;
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      Aft  : Field := Default_Aft;
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      Exp  : Field := Default_Exp)
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   is
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   begin
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      Put (Current_Output, Item, Fore, Aft, Exp);
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   end Put;
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   ---------
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   -- Put --
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   ---------
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   procedure Put
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     (To   : out Wide_String;
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      Item : Complex;
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      Aft  : Field := Default_Aft;
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      Exp  : Field := Default_Exp)
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   is
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      S : String (To'First .. To'Last);
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   begin
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      Aux.Puts (S, LLF (Re (Item)), LLF (Im (Item)), Aft, Exp);
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      for J in S'Range loop
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         To (J) := Wide_Character'Val (Character'Pos (S (J)));
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      end loop;
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   end Put;
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end Ada.Wide_Text_IO.Complex_IO;

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