* config/alpha/alpha.c, config/alpha/alpha.md,
[official-gcc.git] / gcc / ada / a-wtinau.adb
blob4889a8a5afc41e32545c6b7f269c25b247560d69
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT RUN-TIME COMPONENTS --
4 -- --
5 -- A D A . W I D E _ T E X T _ I O . I N T E G E R _ A U X --
6 -- --
7 -- B o d y --
8 -- --
9 -- Copyright (C) 1992-2006, Free Software Foundation, Inc. --
10 -- --
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. --
21 -- --
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. --
28 -- --
29 -- GNAT was originally developed by the GNAT team at New York University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
31 -- --
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
52 (File : File_Type;
53 Buf : out String;
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.
59 -------------
60 -- Get_Int --
61 -------------
63 procedure Get_Int
64 (File : File_Type;
65 Item : out Integer;
66 Width : Field)
68 Buf : String (1 .. Field'Last);
69 Ptr : aliased Integer := 1;
70 Stop : Integer := 0;
72 begin
73 if Width /= 0 then
74 Load_Width (File, Width, Buf, Stop);
75 String_Skip (Buf, Ptr);
76 else
77 Load_Integer (File, Buf, Stop);
78 end if;
80 Item := Scan_Integer (Buf, Ptr'Access, Stop);
81 Check_End_Of_Field (Buf, Stop, Ptr, Width);
82 end Get_Int;
84 -------------
85 -- Get_LLI --
86 -------------
88 procedure Get_LLI
89 (File : File_Type;
90 Item : out Long_Long_Integer;
91 Width : Field)
93 Buf : String (1 .. Field'Last);
94 Ptr : aliased Integer := 1;
95 Stop : Integer := 0;
97 begin
98 if Width /= 0 then
99 Load_Width (File, Width, Buf, Stop);
100 String_Skip (Buf, Ptr);
101 else
102 Load_Integer (File, Buf, Stop);
103 end if;
105 Item := Scan_Long_Long_Integer (Buf, Ptr'Access, Stop);
106 Check_End_Of_Field (Buf, Stop, Ptr, Width);
107 end Get_LLI;
109 --------------
110 -- Gets_Int --
111 --------------
113 procedure Gets_Int
114 (From : String;
115 Item : out Integer;
116 Last : out Positive)
118 Pos : aliased Integer;
120 begin
121 String_Skip (From, Pos);
122 Item := Scan_Integer (From, Pos'Access, From'Last);
123 Last := Pos - 1;
125 exception
126 when Constraint_Error =>
127 raise Data_Error;
128 end Gets_Int;
130 --------------
131 -- Gets_LLI --
132 --------------
134 procedure Gets_LLI
135 (From : String;
136 Item : out Long_Long_Integer;
137 Last : out Positive)
139 Pos : aliased Integer;
141 begin
142 String_Skip (From, Pos);
143 Item := Scan_Long_Long_Integer (From, Pos'Access, From'Last);
144 Last := Pos - 1;
146 exception
147 when Constraint_Error =>
148 raise Data_Error;
149 end Gets_LLI;
151 ------------------
152 -- Load_Integer --
153 ------------------
155 procedure Load_Integer
156 (File : File_Type;
157 Buf : out String;
158 Ptr : in out Natural)
160 Hash_Loc : Natural;
161 Loaded : Boolean;
163 begin
164 Load_Skip (File);
165 Load (File, Buf, Ptr, '+', '-');
167 Load_Digits (File, Buf, Ptr, Loaded);
169 if Loaded then
170 Load (File, Buf, Ptr, '#', ':', Loaded);
172 if Loaded then
173 Hash_Loc := Ptr;
174 Load_Extended_Digits (File, Buf, Ptr);
175 Load (File, Buf, Ptr, Buf (Hash_Loc));
176 end if;
178 Load (File, Buf, Ptr, 'E', 'e', Loaded);
180 if Loaded then
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);
187 end if;
188 end if;
189 end Load_Integer;
191 -------------
192 -- Put_Int --
193 -------------
195 procedure Put_Int
196 (File : File_Type;
197 Item : Integer;
198 Width : Field;
199 Base : Number_Base)
201 Buf : String (1 .. Field'Last);
202 Ptr : Natural := 0;
204 begin
205 if Base = 10 and then Width = 0 then
206 Set_Image_Integer (Item, Buf, Ptr);
207 elsif Base = 10 then
208 Set_Image_Width_Integer (Item, Width, Buf, Ptr);
209 else
210 Set_Image_Based_Integer (Item, Base, Width, Buf, Ptr);
211 end if;
213 Put_Item (File, Buf (1 .. Ptr));
214 end Put_Int;
216 -------------
217 -- Put_LLI --
218 -------------
220 procedure Put_LLI
221 (File : File_Type;
222 Item : Long_Long_Integer;
223 Width : Field;
224 Base : Number_Base)
226 Buf : String (1 .. Field'Last);
227 Ptr : Natural := 0;
229 begin
230 if Base = 10 and then Width = 0 then
231 Set_Image_Long_Long_Integer (Item, Buf, Ptr);
232 elsif Base = 10 then
233 Set_Image_Width_Long_Long_Integer (Item, Width, Buf, Ptr);
234 else
235 Set_Image_Based_Long_Long_Integer (Item, Base, Width, Buf, Ptr);
236 end if;
238 Put_Item (File, Buf (1 .. Ptr));
239 end Put_LLI;
241 --------------
242 -- Puts_Int --
243 --------------
245 procedure Puts_Int
246 (To : out String;
247 Item : Integer;
248 Base : Number_Base)
250 Buf : String (1 .. Field'Last);
251 Ptr : Natural := 0;
253 begin
254 if Base = 10 then
255 Set_Image_Width_Integer (Item, To'Length, Buf, Ptr);
256 else
257 Set_Image_Based_Integer (Item, Base, To'Length, Buf, Ptr);
258 end if;
260 if Ptr > To'Length then
261 raise Layout_Error;
262 else
263 To (To'First .. To'First + Ptr - 1) := Buf (1 .. Ptr);
264 end if;
265 end Puts_Int;
267 --------------
268 -- Puts_LLI --
269 --------------
271 procedure Puts_LLI
272 (To : out String;
273 Item : Long_Long_Integer;
274 Base : Number_Base)
276 Buf : String (1 .. Field'Last);
277 Ptr : Natural := 0;
279 begin
280 if Base = 10 then
281 Set_Image_Width_Long_Long_Integer (Item, To'Length, Buf, Ptr);
282 else
283 Set_Image_Based_Long_Long_Integer (Item, Base, To'Length, Buf, Ptr);
284 end if;
286 if Ptr > To'Length then
287 raise Layout_Error;
288 else
289 To (To'First .. To'First + Ptr - 1) := Buf (1 .. Ptr);
290 end if;
291 end Puts_LLI;
293 end Ada.Wide_Text_IO.Integer_Aux;