1 ------------------------------------------------------------------------------
3 -- GNAT RUNTIME COMPONENTS --
5 -- A D A . W I D E _ T E X T _ I O . C O M P L E X _ A U X --
10 -- Copyright (C) 1992,1993,1994,1995,1996 Free Software Foundation, Inc. --
12 -- GNAT is free software; you can redistribute it and/or modify it under --
13 -- terms of the GNU General Public License as published by the Free Soft- --
14 -- ware Foundation; either version 2, or (at your option) any later ver- --
15 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
16 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
17 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
18 -- for more details. You should have received a copy of the GNU General --
19 -- Public License distributed with GNAT; see file COPYING. If not, write --
20 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
21 -- MA 02111-1307, USA. --
23 -- As a special exception, if other files instantiate generics from this --
24 -- unit, or you link this unit with other files to produce an executable, --
25 -- this unit does not by itself cause the resulting executable to be --
26 -- covered by the GNU General Public License. This exception does not --
27 -- however invalidate any other reasons why the executable file might be --
28 -- covered by the GNU Public License. --
30 -- GNAT was originally developed by the GNAT team at New York University. --
31 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
33 ------------------------------------------------------------------------------
35 with Ada.Wide_Text_IO.Generic_Aux; use Ada.Wide_Text_IO.Generic_Aux;
36 with Ada.Wide_Text_IO.Float_Aux;
38 with System.Img_Real; use System.Img_Real;
40 package body Ada.Wide_Text_IO.Complex_Aux is
42 package Aux renames Ada.Wide_Text_IO.Float_Aux;
50 ItemR : out Long_Long_Float;
51 ItemI : out Long_Long_Float;
54 Buf : String (1 .. Field'Last);
56 Ptr : aliased Integer;
57 Paren : Boolean := False;
60 -- General note for following code, exceptions from the calls
61 -- to Get for components of the complex value are propagated.
64 Load_Width (File, Width, Buf, Stop);
65 Gets (Buf (1 .. Stop), ItemR, ItemI, Ptr);
67 for J in Ptr + 1 .. Stop loop
68 if not Is_Blank (Buf (J)) then
78 Load (File, Buf, Ptr, '(', Paren);
79 Aux.Get (File, ItemR, 0);
81 Load (File, Buf, Ptr, ',');
82 Aux.Get (File, ItemI, 0);
86 Load (File, Buf, Ptr, ')', Paren);
101 ItemR : out Long_Long_Float;
102 ItemI : out Long_Long_Float;
109 String_Skip (From, Pos);
111 if From (Pos) = '(' then
118 Aux.Gets (From (Pos .. From'Last), ItemR, Pos);
120 String_Skip (From (Pos + 1 .. From'Last), Pos);
122 if From (Pos) = ',' then
126 Aux.Gets (From (Pos .. From'Last), ItemI, Pos);
129 String_Skip (From (Pos + 1 .. From'Last), Pos);
131 if From (Pos) /= ')' then
145 ItemR : Long_Long_Float;
146 ItemI : Long_Long_Float;
153 Aux.Put (File, ItemR, Fore, Aft, Exp);
155 Aux.Put (File, ItemI, Fore, Aft, Exp);
165 ItemR : Long_Long_Float;
166 ItemI : Long_Long_Float;
170 I_String : String (1 .. 3 * Field'Last);
171 R_String : String (1 .. 3 * Field'Last);
177 -- Both parts are initially converted with a Fore of 0
180 Set_Image_Real (ItemR, R_String, Rptr, 0, Aft, Exp);
182 Set_Image_Real (ItemI, I_String, Iptr, 0, Aft, Exp);
184 -- Check room for both parts plus parens plus comma (RM G.1.3(34))
186 if Rptr + Iptr + 3 > To'Length then
190 -- If there is room, layout result according to (RM G.1.3(31-33))
192 To (To'First) := '(';
193 To (To'First + 1 .. To'First + Rptr) := R_String (1 .. Rptr);
194 To (To'First + Rptr + 1) := ',';
199 To (To'Last - Iptr .. To'Last - 1) := I_String (1 .. Iptr);
201 for J in To'First + Rptr + 2 .. To'Last - Iptr - 1 loop
206 end Ada.Wide_Text_IO.Complex_Aux;