1 ------------------------------------------------------------------------------
3 -- GNAT RUNTIME COMPONENTS --
5 -- A D A . T E X T _ I O . D E C I M A L _ A U X --
10 -- Copyright (C) 1992-2001 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 -- Extensive contributions were provided by Ada Core Technologies Inc. --
33 ------------------------------------------------------------------------------
35 with Ada.Text_IO.Generic_Aux; use Ada.Text_IO.Generic_Aux;
36 with Ada.Text_IO.Float_Aux; use Ada.Text_IO.Float_Aux;
38 with System.Img_Dec; use System.Img_Dec;
39 with System.Img_LLD; use System.Img_LLD;
40 with System.Val_Dec; use System.Val_Dec;
41 with System.Val_LLD; use System.Val_LLD;
43 package body Ada.Text_IO.Decimal_Aux is
55 Buf : String (1 .. Field'Last);
56 Ptr : aliased Integer;
62 Load_Width (File, Width, Buf, Stop);
63 String_Skip (Buf, Ptr);
65 Load_Real (File, Buf, Stop);
69 Item := Scan_Decimal (Buf, Ptr'Access, Stop, Scale);
70 Check_End_Of_Field (Buf, Stop, Ptr, Width);
82 return Long_Long_Integer
84 Buf : String (1 .. Field'Last);
85 Ptr : aliased Integer;
87 Item : Long_Long_Integer;
91 Load_Width (File, Width, Buf, Stop);
92 String_Skip (Buf, Ptr);
94 Load_Real (File, Buf, Stop);
98 Item := Scan_Long_Long_Decimal (Buf, Ptr'Access, Stop, Scale);
99 Check_End_Of_Field (Buf, Stop, Ptr, Width);
109 Last : access Positive;
113 Pos : aliased Integer;
117 String_Skip (From, Pos);
118 Item := Scan_Decimal (From, Pos'Access, From'Last, Scale);
123 when Constraint_Error =>
134 Last : access Positive;
136 return Long_Long_Integer
138 Pos : aliased Integer;
139 Item : Long_Long_Integer;
142 String_Skip (From, Pos);
143 Item := Scan_Long_Long_Decimal (From, Pos'Access, From'Last, Scale);
148 when Constraint_Error =>
158 (File : in File_Type;
165 Buf : String (1 .. Field'Last);
169 Set_Image_Decimal (Item, Buf, Ptr, Scale, Fore, Aft, Exp);
170 Put_Item (File, Buf (1 .. Ptr));
178 (File : in File_Type;
179 Item : in Long_Long_Integer;
185 Buf : String (1 .. Field'Last);
189 Set_Image_Long_Long_Decimal (Item, Buf, Ptr, Scale, Fore, Aft, Exp);
190 Put_Item (File, Buf (1 .. Ptr));
204 Buf : String (1 .. Field'Last);
210 Fore := To'Length - 1 - Aft;
212 Fore := To'Length - 2 - Aft - Exp;
219 Set_Image_Decimal (Item, Buf, Ptr, Scale, Fore, Aft, Exp);
221 if Ptr > To'Length then
224 To := Buf (1 .. Ptr);
234 Item : in Long_Long_Integer;
239 Buf : String (1 .. Field'Last);
245 Fore := To'Length - 1 - Aft;
247 Fore := To'Length - 2 - Aft - Exp;
254 Set_Image_Long_Long_Decimal (Item, Buf, Ptr, Scale, Fore, Aft, Exp);
256 if Ptr > To'Length then
259 To := Buf (1 .. Ptr);
263 end Ada.Text_IO.Decimal_Aux;