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
;