160 lines
5.3 KiB
Ada
160 lines
5.3 KiB
Ada
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------------------------------------------------------------------------------
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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 _ 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_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_Wide_Text_IO.Complex_IO is
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package Aux renames Ada.Wide_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_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_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_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_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_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_Wide_Text_IO.Complex_IO;
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