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Diffstat (limited to 'gcc/ada/a-wtcoio.adb')
| -rw-r--r-- | gcc/ada/a-wtcoio.adb | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/gcc/ada/a-wtcoio.adb b/gcc/ada/a-wtcoio.adb new file mode 100644 index 00000000000..6ffa0a8de2a --- /dev/null +++ b/gcc/ada/a-wtcoio.adb @@ -0,0 +1,165 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUNTIME 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 -- +-- -- +-- $Revision: 1.4 $ -- +-- -- +-- Copyright (C) 1992,1993,1994,1995,1996 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 2, 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. See the GNU General Public License -- +-- for more details. You should have received a copy of the GNU General -- +-- Public License distributed with GNAT; see file COPYING. If not, write -- +-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- +-- MA 02111-1307, USA. -- +-- -- +-- As a special exception, if other files instantiate generics from this -- +-- unit, or you link this unit with other files to produce an executable, -- +-- this unit does not by itself cause the resulting executable to be -- +-- covered by the GNU General Public License. This exception does not -- +-- however invalidate any other reasons why the executable file might be -- +-- covered by the GNU Public License. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). -- +-- -- +------------------------------------------------------------------------------ + +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 + +-- subtype TFT is Ada.Wide_Text_IO.File_Type; + -- File type required 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 : in File_Type; + Item : out Complex; + Width : in 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 : in Field := 0) + is + begin + Get (Current_Input, Item, Width); + end Get; + + --------- + -- Get -- + --------- + + procedure Get + (From : in 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 : in File_Type; + Item : in Complex; + Fore : in Field := Default_Fore; + Aft : in Field := Default_Aft; + Exp : in Field := Default_Exp) + is + begin + Aux.Put (TFT (File), LLF (Re (Item)), LLF (Im (Item)), Fore, Aft, Exp); + end Put; + + --------- + -- Put -- + --------- + + procedure Put + (Item : in Complex; + Fore : in Field := Default_Fore; + Aft : in Field := Default_Aft; + Exp : in Field := Default_Exp) + is + begin + Put (Current_Output, Item, Fore, Aft, Exp); + end Put; + + --------- + -- Put -- + --------- + + procedure Put + (To : out Wide_String; + Item : in Complex; + Aft : in Field := Default_Aft; + Exp : in 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; |