1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME COMPONENTS --
5 -- A D A . T E X T _ I O . I N T E G E R _ 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 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
33 ------------------------------------------------------------------------------
35 with Ada.Text_IO.Generic_Aux; use Ada.Text_IO.Generic_Aux;
37 with System.Img_BIU; use System.Img_BIU;
38 with System.Img_Int; use System.Img_Int;
39 with System.Img_LLB; use System.Img_LLB;
40 with System.Img_LLI; use System.Img_LLI;
41 with System.Img_LLW; use System.Img_LLW;
42 with System.Img_WIU; use System.Img_WIU;
43 with System.Val_Int; use System.Val_Int;
44 with System.Val_LLI; use System.Val_LLI;
46 package body Ada.Text_IO.Integer_Aux is
48 -----------------------
49 -- Local Subprograms --
50 -----------------------
52 procedure Load_Integer
55 Ptr : in out Natural);
56 -- This is an auxiliary routine that is used to load an possibly signed
57 -- integer literal value from the input file into Buf, starting at Ptr + 1.
58 -- On return, Ptr is set to the last character stored.
69 Buf : String (1 .. Field'Last);
70 Ptr : aliased Integer := 1;
75 Load_Width (File, Width, Buf, Stop);
76 String_Skip (Buf, Ptr);
78 Load_Integer (File, Buf, Stop);
81 Item := Scan_Integer (Buf, Ptr'Access, Stop);
82 Check_End_Of_Field (Buf, Stop, Ptr, Width);
91 Item : out Long_Long_Integer;
94 Buf : String (1 .. Field'Last);
95 Ptr : aliased Integer := 1;
100 Load_Width (File, Width, Buf, Stop);
101 String_Skip (Buf, Ptr);
103 Load_Integer (File, Buf, Stop);
106 Item := Scan_Long_Long_Integer (Buf, Ptr'Access, Stop);
107 Check_End_Of_Field (Buf, Stop, Ptr, Width);
119 Pos : aliased Integer;
122 String_Skip (From, Pos);
123 Item := Scan_Integer (From, Pos'Access, From'Last);
127 when Constraint_Error =>
138 Item : out Long_Long_Integer;
141 Pos : aliased Integer;
144 String_Skip (From, Pos);
145 Item := Scan_Long_Long_Integer (From, Pos'Access, From'Last);
149 when Constraint_Error =>
158 procedure Load_Integer
159 (File : in File_Type;
161 Ptr : in out Natural)
168 Load (File, Buf, Ptr, '+', '-');
170 Load_Digits (File, Buf, Ptr, Loaded);
173 Load (File, Buf, Ptr, '#', ':', Loaded);
177 Load_Extended_Digits (File, Buf, Ptr);
178 Load (File, Buf, Ptr, Buf (Hash_Loc));
181 Load (File, Buf, Ptr, 'E', 'e', Loaded);
185 -- Note: it is strange to allow a minus sign, since the syntax
186 -- does not, but that is what ACVC test CE3704F, case (6) wants.
188 Load (File, Buf, Ptr, '+', '-');
189 Load_Digits (File, Buf, Ptr);
199 (File : in File_Type;
202 Base : in Number_Base)
204 Buf : String (1 .. Integer'Max (Field'Last, Width));
208 if Base = 10 and then Width = 0 then
209 Set_Image_Integer (Item, Buf, Ptr);
211 Set_Image_Width_Integer (Item, Width, Buf, Ptr);
213 Set_Image_Based_Integer (Item, Base, Width, Buf, Ptr);
216 Put_Item (File, Buf (1 .. Ptr));
224 (File : in File_Type;
225 Item : in Long_Long_Integer;
227 Base : in Number_Base)
229 Buf : String (1 .. Integer'Max (Field'Last, Width));
233 if Base = 10 and then Width = 0 then
234 Set_Image_Long_Long_Integer (Item, Buf, Ptr);
236 Set_Image_Width_Long_Long_Integer (Item, Width, Buf, Ptr);
238 Set_Image_Based_Long_Long_Integer (Item, Base, Width, Buf, Ptr);
241 Put_Item (File, Buf (1 .. Ptr));
251 Base : in Number_Base)
253 Buf : String (1 .. Integer'Max (Field'Last, To'Length));
258 Set_Image_Width_Integer (Item, To'Length, Buf, Ptr);
260 Set_Image_Based_Integer (Item, Base, To'Length, Buf, Ptr);
263 if Ptr > To'Length then
266 To (To'First .. To'First + Ptr - 1) := Buf (1 .. Ptr);
276 Item : in Long_Long_Integer;
277 Base : in Number_Base)
279 Buf : String (1 .. Integer'Max (Field'Last, To'Length));
284 Set_Image_Width_Long_Long_Integer (Item, To'Length, Buf, Ptr);
286 Set_Image_Based_Long_Long_Integer (Item, Base, To'Length, Buf, Ptr);
289 if Ptr > To'Length then
292 To (To'First .. To'First + Ptr - 1) := Buf (1 .. Ptr);
296 end Ada.Text_IO.Integer_Aux;