1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME COMPONENTS --
5 -- A D A . W I D E _ T E X T _ I O . I N T E G E R _ A U X --
9 -- Copyright (C) 1992-2006, Free Software Foundation, Inc. --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 2, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
20 -- Boston, MA 02110-1301, USA. --
22 -- As a special exception, if other files instantiate generics from this --
23 -- unit, or you link this unit with other files to produce an executable, --
24 -- this unit does not by itself cause the resulting executable to be --
25 -- covered by the GNU General Public License. This exception does not --
26 -- however invalidate any other reasons why the executable file might be --
27 -- covered by the GNU Public License. --
29 -- GNAT was originally developed by the GNAT team at New York University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
32 ------------------------------------------------------------------------------
34 with Ada.Wide_Text_IO.Generic_Aux; use Ada.Wide_Text_IO.Generic_Aux;
36 with System.Img_BIU; use System.Img_BIU;
37 with System.Img_Int; use System.Img_Int;
38 with System.Img_LLB; use System.Img_LLB;
39 with System.Img_LLI; use System.Img_LLI;
40 with System.Img_LLW; use System.Img_LLW;
41 with System.Img_WIU; use System.Img_WIU;
42 with System.Val_Int; use System.Val_Int;
43 with System.Val_LLI; use System.Val_LLI;
45 package body Ada.Wide_Text_IO.Integer_Aux is
47 -----------------------
48 -- Local Subprograms --
49 -----------------------
51 procedure Load_Integer
54 Ptr : in out Natural);
55 -- This is an auxiliary routine that is used to load an possibly signed
56 -- integer literal value from the input file into Buf, starting at Ptr + 1.
57 -- On return, Ptr is set to the last character stored.
68 Buf : String (1 .. Field'Last);
69 Ptr : aliased Integer := 1;
74 Load_Width (File, Width, Buf, Stop);
75 String_Skip (Buf, Ptr);
77 Load_Integer (File, Buf, Stop);
80 Item := Scan_Integer (Buf, Ptr'Access, Stop);
81 Check_End_Of_Field (Buf, Stop, Ptr, Width);
90 Item : out Long_Long_Integer;
93 Buf : String (1 .. Field'Last);
94 Ptr : aliased Integer := 1;
99 Load_Width (File, Width, Buf, Stop);
100 String_Skip (Buf, Ptr);
102 Load_Integer (File, Buf, Stop);
105 Item := Scan_Long_Long_Integer (Buf, Ptr'Access, Stop);
106 Check_End_Of_Field (Buf, Stop, Ptr, Width);
118 Pos : aliased Integer;
121 String_Skip (From, Pos);
122 Item := Scan_Integer (From, Pos'Access, From'Last);
126 when Constraint_Error =>
136 Item : out Long_Long_Integer;
139 Pos : aliased Integer;
142 String_Skip (From, Pos);
143 Item := Scan_Long_Long_Integer (From, Pos'Access, From'Last);
147 when Constraint_Error =>
155 procedure Load_Integer
158 Ptr : in out Natural)
165 Load (File, Buf, Ptr, '+', '-');
167 Load_Digits (File, Buf, Ptr, Loaded);
170 Load (File, Buf, Ptr, '#', ':', Loaded);
174 Load_Extended_Digits (File, Buf, Ptr);
175 Load (File, Buf, Ptr, Buf (Hash_Loc));
178 Load (File, Buf, Ptr, 'E', 'e', Loaded);
182 -- Note: it is strange to allow a minus sign, since the syntax
183 -- does not, but that is what ACVC test CE3704F, case (6) wants.
185 Load (File, Buf, Ptr, '+', '-');
186 Load_Digits (File, Buf, Ptr);
201 Buf : String (1 .. Field'Last);
205 if Base = 10 and then Width = 0 then
206 Set_Image_Integer (Item, Buf, Ptr);
208 Set_Image_Width_Integer (Item, Width, Buf, Ptr);
210 Set_Image_Based_Integer (Item, Base, Width, Buf, Ptr);
213 Put_Item (File, Buf (1 .. Ptr));
222 Item : Long_Long_Integer;
226 Buf : String (1 .. Field'Last);
230 if Base = 10 and then Width = 0 then
231 Set_Image_Long_Long_Integer (Item, Buf, Ptr);
233 Set_Image_Width_Long_Long_Integer (Item, Width, Buf, Ptr);
235 Set_Image_Based_Long_Long_Integer (Item, Base, Width, Buf, Ptr);
238 Put_Item (File, Buf (1 .. Ptr));
250 Buf : String (1 .. Field'Last);
255 Set_Image_Width_Integer (Item, To'Length, Buf, Ptr);
257 Set_Image_Based_Integer (Item, Base, To'Length, Buf, Ptr);
260 if Ptr > To'Length then
263 To (To'First .. To'First + Ptr - 1) := Buf (1 .. Ptr);
273 Item : Long_Long_Integer;
276 Buf : String (1 .. Field'Last);
281 Set_Image_Width_Long_Long_Integer (Item, To'Length, Buf, Ptr);
283 Set_Image_Based_Long_Long_Integer (Item, Base, To'Length, Buf, Ptr);
286 if Ptr > To'Length then
289 To (To'First .. To'First + Ptr - 1) := Buf (1 .. Ptr);
293 end Ada.Wide_Text_IO.Integer_Aux;