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------------------------------------------------------------------------------
--                                                                          --
--                         GNAT RUN-TIME COMPONENTS                         --
--                                                                          --
--              A D A . T E X T _ I O . I N T E G E R  _ A U X              --
--                                                                          --
--                                 B o d y                                  --
--                                                                          --
--          Copyright (C) 1992-2009, Free Software Foundation, Inc.         --
--                                                                          --
-- GNAT is free software;  you can  redistribute it  and/or modify it under --
-- terms of the  GNU General Public License as published  by the Free Soft- --
-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
--                                                                          --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception,   --
-- version 3.1, as published by the Free Software Foundation.               --
--                                                                          --
-- You should have received a copy of the GNU General Public License and    --
-- a copy of the GCC Runtime Library Exception along with this program;     --
-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
-- <http://www.gnu.org/licenses/>.                                          --
--                                                                          --
-- GNAT was originally developed  by the GNAT team at  New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc.      --
--                                                                          --
------------------------------------------------------------------------------
 
with Ada.Text_IO.Generic_Aux; use Ada.Text_IO.Generic_Aux;
 
with System.Img_BIU;   use System.Img_BIU;
with System.Img_Int;   use System.Img_Int;
with System.Img_LLB;   use System.Img_LLB;
with System.Img_LLI;   use System.Img_LLI;
with System.Img_LLW;   use System.Img_LLW;
with System.Img_WIU;   use System.Img_WIU;
with System.Val_Int;   use System.Val_Int;
with System.Val_LLI;   use System.Val_LLI;
 
package body Ada.Text_IO.Integer_Aux is
 
   -----------------------
   -- Local Subprograms --
   -----------------------
 
   procedure Load_Integer
     (File : File_Type;
      Buf  : out String;
      Ptr  : in out Natural);
   --  This is an auxiliary routine that is used to load a possibly signed
   --  integer literal value from the input file into Buf, starting at Ptr + 1.
   --  On return, Ptr is set to the last character stored.
 
   -------------
   -- Get_Int --
   -------------
 
   procedure Get_Int
     (File  : File_Type;
      Item  : out Integer;
      Width : Field)
   is
      Buf  : String (1 .. Field'Last);
      Ptr  : aliased Integer := 1;
      Stop : Integer := 0;
 
   begin
      if Width /= 0 then
         Load_Width (File, Width, Buf, Stop);
         String_Skip (Buf, Ptr);
      else
         Load_Integer (File, Buf, Stop);
      end if;
 
      Item := Scan_Integer (Buf, Ptr'Access, Stop);
      Check_End_Of_Field (Buf, Stop, Ptr, Width);
   end Get_Int;
 
   -------------
   -- Get_LLI --
   -------------
 
   procedure Get_LLI
     (File  : File_Type;
      Item  : out Long_Long_Integer;
      Width : Field)
   is
      Buf  : String (1 .. Field'Last);
      Ptr  : aliased Integer := 1;
      Stop : Integer := 0;
 
   begin
      if Width /= 0 then
         Load_Width (File, Width, Buf, Stop);
         String_Skip (Buf, Ptr);
      else
         Load_Integer (File, Buf, Stop);
      end if;
 
      Item := Scan_Long_Long_Integer (Buf, Ptr'Access, Stop);
      Check_End_Of_Field (Buf, Stop, Ptr, Width);
   end Get_LLI;
 
   --------------
   -- Gets_Int --
   --------------
 
   procedure Gets_Int
     (From : String;
      Item : out Integer;
      Last : out Positive)
   is
      Pos : aliased Integer;
 
   begin
      String_Skip (From, Pos);
      Item := Scan_Integer (From, Pos'Access, From'Last);
      Last := Pos - 1;
 
   exception
      when Constraint_Error =>
         raise Data_Error;
   end Gets_Int;
 
   --------------
   -- Gets_LLI --
   --------------
 
   procedure Gets_LLI
     (From : String;
      Item : out Long_Long_Integer;
      Last : out Positive)
   is
      Pos : aliased Integer;
 
   begin
      String_Skip (From, Pos);
      Item := Scan_Long_Long_Integer (From, Pos'Access, From'Last);
      Last := Pos - 1;
 
   exception
      when Constraint_Error =>
         raise Data_Error;
   end Gets_LLI;
 
   ------------------
   -- Load_Integer --
   ------------------
 
   procedure Load_Integer
     (File : File_Type;
      Buf  : out String;
      Ptr  : in out Natural)
   is
      Hash_Loc : Natural;
      Loaded   : Boolean;
 
   begin
      Load_Skip (File);
      Load (File, Buf, Ptr, '+', '-');
 
      Load_Digits (File, Buf, Ptr, Loaded);
 
      if Loaded then
 
         --  Deal with based literal (note : is ok replacement for #)
 
         Load (File, Buf, Ptr, '#', ':', Loaded);
 
         if Loaded then
            Hash_Loc := Ptr;
            Load_Extended_Digits (File, Buf, Ptr);
            Load (File, Buf, Ptr, Buf (Hash_Loc));
         end if;
 
         --  Deal with exponent
 
         Load (File, Buf, Ptr, 'E', 'e', Loaded);
 
         if Loaded then
 
            --  Note: it is strange to allow a minus sign, since the syntax
            --  does not, but that is what ACVC test CE3704F, case (6) wants.
 
            Load (File, Buf, Ptr, '+', '-');
            Load_Digits (File, Buf, Ptr);
         end if;
      end if;
   end Load_Integer;
 
   -------------
   -- Put_Int --
   -------------
 
   procedure Put_Int
     (File  : File_Type;
      Item  : Integer;
      Width : Field;
      Base  : Number_Base)
   is
      Buf : String (1 .. Integer'Max (Field'Last, Width));
      Ptr : Natural := 0;
 
   begin
      if Base = 10 and then Width = 0 then
         Set_Image_Integer (Item, Buf, Ptr);
      elsif Base = 10 then
         Set_Image_Width_Integer (Item, Width, Buf, Ptr);
      else
         Set_Image_Based_Integer (Item, Base, Width, Buf, Ptr);
      end if;
 
      Put_Item (File, Buf (1 .. Ptr));
   end Put_Int;
 
   -------------
   -- Put_LLI --
   -------------
 
   procedure Put_LLI
     (File  : File_Type;
      Item  : Long_Long_Integer;
      Width : Field;
      Base  : Number_Base)
   is
      Buf : String (1 .. Integer'Max (Field'Last, Width));
      Ptr : Natural := 0;
 
   begin
      if Base = 10 and then Width = 0 then
         Set_Image_Long_Long_Integer (Item, Buf, Ptr);
      elsif Base = 10 then
         Set_Image_Width_Long_Long_Integer (Item, Width, Buf, Ptr);
      else
         Set_Image_Based_Long_Long_Integer (Item, Base, Width, Buf, Ptr);
      end if;
 
      Put_Item (File, Buf (1 .. Ptr));
   end Put_LLI;
 
   --------------
   -- Puts_Int --
   --------------
 
   procedure Puts_Int
     (To   : out String;
      Item : Integer;
      Base : Number_Base)
   is
      Buf : String (1 .. Integer'Max (Field'Last, To'Length));
      Ptr : Natural := 0;
 
   begin
      if Base = 10 then
         Set_Image_Width_Integer (Item, To'Length, Buf, Ptr);
      else
         Set_Image_Based_Integer (Item, Base, To'Length, Buf, Ptr);
      end if;
 
      if Ptr > To'Length then
         raise Layout_Error;
      else
         To (To'First .. To'First + Ptr - 1) := Buf (1 .. Ptr);
      end if;
   end Puts_Int;
 
   --------------
   -- Puts_LLI --
   --------------
 
   procedure Puts_LLI
     (To   : out String;
      Item : Long_Long_Integer;
      Base : Number_Base)
   is
      Buf : String (1 .. Integer'Max (Field'Last, To'Length));
      Ptr : Natural := 0;
 
   begin
      if Base = 10 then
         Set_Image_Width_Long_Long_Integer (Item, To'Length, Buf, Ptr);
      else
         Set_Image_Based_Long_Long_Integer (Item, Base, To'Length, Buf, Ptr);
      end if;
 
      if Ptr > To'Length then
         raise Layout_Error;
      else
         To (To'First .. To'First + Ptr - 1) := Buf (1 .. Ptr);
      end if;
   end Puts_LLI;
 
end Ada.Text_IO.Integer_Aux;

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Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [ada/] [a-tiinau.adb] - Blame information for rev 300

Line No.	Rev	Author	Line
1	281	jeremybenn	`------------------------------------------------------------------------------`
2			`-- --`
3			`-- GNAT RUN-TIME COMPONENTS --`
4			`-- --`
5			`-- A D A . 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) 1992-2009, 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 3, 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. --`
17			`-- --`
18			`-- As a special exception under Section 7 of GPL version 3, you are granted --`
19			`-- additional permissions described in the GCC Runtime Library Exception, --`
20			`-- version 3.1, as published by the Free Software Foundation. --`
21			`-- --`
22			`-- You should have received a copy of the GNU General Public License and --`
23			`-- a copy of the GCC Runtime Library Exception along with this program; --`
24			`-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --`
25			`-- <http://www.gnu.org/licenses/>. --`
26			`-- --`
27			`-- GNAT was originally developed by the GNAT team at New York University. --`
28			`-- Extensive contributions were provided by Ada Core Technologies Inc. --`
29			`-- --`
30			`------------------------------------------------------------------------------`
31
32			`with Ada.Text_IO.Generic_Aux; use Ada.Text_IO.Generic_Aux;`
33
34			`with System.Img_BIU; use System.Img_BIU;`
35			`with System.Img_Int; use System.Img_Int;`
36			`with System.Img_LLB; use System.Img_LLB;`
37			`with System.Img_LLI; use System.Img_LLI;`
38			`with System.Img_LLW; use System.Img_LLW;`
39			`with System.Img_WIU; use System.Img_WIU;`
40			`with System.Val_Int; use System.Val_Int;`
41			`with System.Val_LLI; use System.Val_LLI;`
42
43			`package body Ada.Text_IO.Integer_Aux is`
44
45			`-----------------------`
46			`-- Local Subprograms --`
47			`-----------------------`
48
49			`procedure Load_Integer`
50			`(File : File_Type;`
51			`Buf : out String;`
52			`Ptr : in out Natural);`
53			`-- This is an auxiliary routine that is used to load a possibly signed`
54			`-- integer literal value from the input file into Buf, starting at Ptr + 1.`
55			`-- On return, Ptr is set to the last character stored.`
56
57			`-------------`
58			`-- Get_Int --`
59			`-------------`
60
61			`procedure Get_Int`
62			`(File : File_Type;`
63			`Item : out Integer;`
64			`Width : Field)`
65			`is`
66			`Buf : String (1 .. Field'Last);`
67			`Ptr : aliased Integer := 1;`
68			`Stop : Integer := 0;`
69
70			`begin`
71			`if Width /= 0 then`
72			`Load_Width (File, Width, Buf, Stop);`
73			`String_Skip (Buf, Ptr);`
74			`else`
75			`Load_Integer (File, Buf, Stop);`
76			`end if;`
77
78			`Item := Scan_Integer (Buf, Ptr'Access, Stop);`
79			`Check_End_Of_Field (Buf, Stop, Ptr, Width);`
80			`end Get_Int;`
81
82			`-------------`
83			`-- Get_LLI --`
84			`-------------`
85
86			`procedure Get_LLI`
87			`(File : File_Type;`
88			`Item : out Long_Long_Integer;`
89			`Width : Field)`
90			`is`
91			`Buf : String (1 .. Field'Last);`
92			`Ptr : aliased Integer := 1;`
93			`Stop : Integer := 0;`
94
95			`begin`
96			`if Width /= 0 then`
97			`Load_Width (File, Width, Buf, Stop);`
98			`String_Skip (Buf, Ptr);`
99			`else`
100			`Load_Integer (File, Buf, Stop);`
101			`end if;`
102
103			`Item := Scan_Long_Long_Integer (Buf, Ptr'Access, Stop);`
104			`Check_End_Of_Field (Buf, Stop, Ptr, Width);`
105			`end Get_LLI;`
106
107			`--------------`
108			`-- Gets_Int --`
109			`--------------`
110
111			`procedure Gets_Int`
112			`(From : String;`
113			`Item : out Integer;`
114			`Last : out Positive)`
115			`is`
116			`Pos : aliased Integer;`
117
118			`begin`
119			`String_Skip (From, Pos);`
120			`Item := Scan_Integer (From, Pos'Access, From'Last);`
121			`Last := Pos - 1;`
122
123			`exception`
124			`when Constraint_Error =>`
125			`raise Data_Error;`
126			`end Gets_Int;`
127
128			`--------------`
129			`-- Gets_LLI --`
130			`--------------`
131
132			`procedure Gets_LLI`
133			`(From : String;`
134			`Item : out Long_Long_Integer;`
135			`Last : out Positive)`
136			`is`
137			`Pos : aliased Integer;`
138
139			`begin`
140			`String_Skip (From, Pos);`
141			`Item := Scan_Long_Long_Integer (From, Pos'Access, From'Last);`
142			`Last := Pos - 1;`
143
144			`exception`
145			`when Constraint_Error =>`
146			`raise Data_Error;`
147			`end Gets_LLI;`
148
149			`------------------`
150			`-- Load_Integer --`
151			`------------------`
152
153			`procedure Load_Integer`
154			`(File : File_Type;`
155			`Buf : out String;`
156			`Ptr : in out Natural)`
157			`is`
158			`Hash_Loc : Natural;`
159			`Loaded : Boolean;`
160
161			`begin`
162			`Load_Skip (File);`
163			`Load (File, Buf, Ptr, '+', '-');`
164
165			`Load_Digits (File, Buf, Ptr, Loaded);`
166
167			`if Loaded then`
168
169			`-- Deal with based literal (note : is ok replacement for #)`
170
171			`Load (File, Buf, Ptr, '#', ':', Loaded);`
172
173			`if Loaded then`
174			`Hash_Loc := Ptr;`
175			`Load_Extended_Digits (File, Buf, Ptr);`
176			`Load (File, Buf, Ptr, Buf (Hash_Loc));`
177			`end if;`
178
179			`-- Deal with exponent`
180
181			`Load (File, Buf, Ptr, 'E', 'e', Loaded);`
182
183			`if Loaded then`
184
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.`
187
188			`Load (File, Buf, Ptr, '+', '-');`
189			`Load_Digits (File, Buf, Ptr);`
190			`end if;`
191			`end if;`
192			`end Load_Integer;`
193
194			`-------------`
195			`-- Put_Int --`
196			`-------------`
197
198			`procedure Put_Int`
199			`(File : File_Type;`
200			`Item : Integer;`
201			`Width : Field;`
202			`Base : Number_Base)`
203			`is`
204			`Buf : String (1 .. Integer'Max (Field'Last, Width));`
205			`Ptr : Natural := 0;`
206
207			`begin`
208			`if Base = 10 and then Width = 0 then`
209			`Set_Image_Integer (Item, Buf, Ptr);`
210			`elsif Base = 10 then`
211			`Set_Image_Width_Integer (Item, Width, Buf, Ptr);`
212			`else`
213			`Set_Image_Based_Integer (Item, Base, Width, Buf, Ptr);`
214			`end if;`
215
216			`Put_Item (File, Buf (1 .. Ptr));`
217			`end Put_Int;`
218
219			`-------------`
220			`-- Put_LLI --`
221			`-------------`
222
223			`procedure Put_LLI`
224			`(File : File_Type;`
225			`Item : Long_Long_Integer;`
226			`Width : Field;`
227			`Base : Number_Base)`
228			`is`
229			`Buf : String (1 .. Integer'Max (Field'Last, Width));`
230			`Ptr : Natural := 0;`
231
232			`begin`
233			`if Base = 10 and then Width = 0 then`
234			`Set_Image_Long_Long_Integer (Item, Buf, Ptr);`
235			`elsif Base = 10 then`
236			`Set_Image_Width_Long_Long_Integer (Item, Width, Buf, Ptr);`
237			`else`
238			`Set_Image_Based_Long_Long_Integer (Item, Base, Width, Buf, Ptr);`
239			`end if;`
240
241			`Put_Item (File, Buf (1 .. Ptr));`
242			`end Put_LLI;`
243
244			`--------------`
245			`-- Puts_Int --`
246			`--------------`
247
248			`procedure Puts_Int`
249			`(To : out String;`
250			`Item : Integer;`
251			`Base : Number_Base)`
252			`is`
253			`Buf : String (1 .. Integer'Max (Field'Last, To'Length));`
254			`Ptr : Natural := 0;`
255
256			`begin`
257			`if Base = 10 then`
258			`Set_Image_Width_Integer (Item, To'Length, Buf, Ptr);`
259			`else`
260			`Set_Image_Based_Integer (Item, Base, To'Length, Buf, Ptr);`
261			`end if;`
262
263			`if Ptr > To'Length then`
264			`raise Layout_Error;`
265			`else`
266			`To (To'First .. To'First + Ptr - 1) := Buf (1 .. Ptr);`
267			`end if;`
268			`end Puts_Int;`
269
270			`--------------`
271			`-- Puts_LLI --`
272			`--------------`
273
274			`procedure Puts_LLI`
275			`(To : out String;`
276			`Item : Long_Long_Integer;`
277			`Base : Number_Base)`
278			`is`
279			`Buf : String (1 .. Integer'Max (Field'Last, To'Length));`
280			`Ptr : Natural := 0;`
281
282			`begin`
283			`if Base = 10 then`
284			`Set_Image_Width_Long_Long_Integer (Item, To'Length, Buf, Ptr);`
285			`else`
286			`Set_Image_Based_Long_Long_Integer (Item, Base, To'Length, Buf, Ptr);`
287			`end if;`
288
289			`if Ptr > To'Length then`
290			`raise Layout_Error;`
291			`else`
292			`To (To'First .. To'First + Ptr - 1) := Buf (1 .. Ptr);`
293			`end if;`
294			`end Puts_LLI;`
295
296			`end Ada.Text_IO.Integer_Aux;`