298 lines
8.6 KiB
Ada
298 lines
8.6 KiB
Ada
|
------------------------------------------------------------------------------
|
||
|
|
-- --
|
||
|
|
-- 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) 1992-2014, 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. We recognize either the standard '#' or
|
||
|
|
-- the allowed alternative replacement ':' (see RM J.2(3)).
|
||
|
|
|
||
|
|
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;
|