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+------------------------------------------------------------------------------
+-- --
+-- GNAT RUN-TIME COMPONENTS --
+-- --
+-- A D A . W I D E _ W I D E _ T E X T _ I O . C O M P L E X _ A U X --
+-- --
+-- 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_Wide_Text_IO.Generic_Aux; use Ada.Wide_Wide_Text_IO.Generic_Aux;
+with Ada.Wide_Wide_Text_IO.Float_Aux;
+
+with System.Img_Real; use System.Img_Real;
+
+package body Ada.Wide_Wide_Text_IO.Complex_Aux is
+
+ package Aux renames Ada.Wide_Wide_Text_IO.Float_Aux;
+
+ ---------
+ -- Get --
+ ---------
+
+ procedure Get
+ (File : File_Type;
+ ItemR : out Long_Long_Float;
+ ItemI : out Long_Long_Float;
+ Width : Field)
+ is
+ Buf : String (1 .. Field'Last);
+ Stop : Integer := 0;
+ Ptr : aliased Integer;
+ Paren : Boolean := False;
+
+ begin
+ -- General note for following code, exceptions from the calls
+ -- to Get for components of the complex value are propagated.
+
+ if Width /= 0 then
+ Load_Width (File, Width, Buf, Stop);
+ Gets (Buf (1 .. Stop), ItemR, ItemI, Ptr);
+
+ for J in Ptr + 1 .. Stop loop
+ if not Is_Blank (Buf (J)) then
+ raise Data_Error;
+ end if;
+ end loop;
+
+ -- Case of width = 0
+
+ else
+ Load_Skip (File);
+ Ptr := 0;
+ Load (File, Buf, Ptr, '(', Paren);
+ Aux.Get (File, ItemR, 0);
+ Load_Skip (File);
+ Load (File, Buf, Ptr, ',');
+ Aux.Get (File, ItemI, 0);
+
+ if Paren then
+ Load_Skip (File);
+ Load (File, Buf, Ptr, ')', Paren);
+
+ if not Paren then
+ raise Data_Error;
+ end if;
+ end if;
+ end if;
+ end Get;
+
+ ----------
+ -- Gets --
+ ----------
+
+ procedure Gets
+ (From : String;
+ ItemR : out Long_Long_Float;
+ ItemI : out Long_Long_Float;
+ Last : out Positive)
+ is
+ Paren : Boolean;
+ Pos : Integer;
+
+ begin
+ String_Skip (From, Pos);
+
+ if From (Pos) = '(' then
+ Pos := Pos + 1;
+ Paren := True;
+ else
+ Paren := False;
+ end if;
+
+ Aux.Gets (From (Pos .. From'Last), ItemR, Pos);
+
+ String_Skip (From (Pos + 1 .. From'Last), Pos);
+
+ if From (Pos) = ',' then
+ Pos := Pos + 1;
+ end if;
+
+ Aux.Gets (From (Pos .. From'Last), ItemI, Pos);
+
+ if Paren then
+ String_Skip (From (Pos + 1 .. From'Last), Pos);
+
+ if From (Pos) /= ')' then
+ raise Data_Error;
+ end if;
+ end if;
+
+ Last := Pos;
+ end Gets;
+
+ ---------
+ -- Put --
+ ---------
+
+ procedure Put
+ (File : File_Type;
+ ItemR : Long_Long_Float;
+ ItemI : Long_Long_Float;
+ Fore : Field;
+ Aft : Field;
+ Exp : Field)
+ is
+ begin
+ Put (File, '(');
+ Aux.Put (File, ItemR, Fore, Aft, Exp);
+ Put (File, ',');
+ Aux.Put (File, ItemI, Fore, Aft, Exp);
+ Put (File, ')');
+ end Put;
+
+ ----------
+ -- Puts --
+ ----------
+
+ procedure Puts
+ (To : out String;
+ ItemR : Long_Long_Float;
+ ItemI : Long_Long_Float;
+ Aft : Field;
+ Exp : Field)
+ is
+ I_String : String (1 .. 3 * Field'Last);
+ R_String : String (1 .. 3 * Field'Last);
+
+ Iptr : Natural;
+ Rptr : Natural;
+
+ begin
+ -- Both parts are initially converted with a Fore of 0
+
+ Rptr := 0;
+ Set_Image_Real (ItemR, R_String, Rptr, 0, Aft, Exp);
+ Iptr := 0;
+ Set_Image_Real (ItemI, I_String, Iptr, 0, Aft, Exp);
+
+ -- Check room for both parts plus parens plus comma (RM G.1.3(34))
+
+ if Rptr + Iptr + 3 > To'Length then
+ raise Layout_Error;
+ end if;
+
+ -- If there is room, layout result according to (RM G.1.3(31-33))
+
+ To (To'First) := '(';
+ To (To'First + 1 .. To'First + Rptr) := R_String (1 .. Rptr);
+ To (To'First + Rptr + 1) := ',';
+
+ To (To'Last) := ')';
+
+ To (To'Last - Iptr .. To'Last - 1) := I_String (1 .. Iptr);
+
+ for J in To'First + Rptr + 2 .. To'Last - Iptr - 1 loop
+ To (J) := ' ';
+ end loop;
+ end Puts;
+
+end Ada.Wide_Wide_Text_IO.Complex_Aux;