171 lines
5.9 KiB
Ada
171 lines
5.9 KiB
Ada
------------------------------------------------------------------------------
|
|
-- --
|
|
-- GNAT RUN-TIME COMPONENTS --
|
|
-- --
|
|
-- A D A . W I D E _ T E X T _ I O . D E C I M A L _ I O --
|
|
-- --
|
|
-- B o d y --
|
|
-- --
|
|
-- Copyright (C) 1992-2020, 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.Wide_Text_IO.Decimal_Aux;
|
|
with System.Img_Decimal_32; use System.Img_Decimal_32;
|
|
with System.Img_Decimal_64; use System.Img_Decimal_64;
|
|
with System.Val_Decimal_32; use System.Val_Decimal_32;
|
|
with System.Val_Decimal_64; use System.Val_Decimal_64;
|
|
with System.WCh_Con; use System.WCh_Con;
|
|
with System.WCh_WtS; use System.WCh_WtS;
|
|
|
|
package body Ada.Wide_Text_IO.Decimal_IO is
|
|
|
|
subtype Int32 is Interfaces.Integer_32;
|
|
subtype Int64 is Interfaces.Integer_64;
|
|
|
|
package Aux32 is new
|
|
Ada.Wide_Text_IO.Decimal_Aux
|
|
(Int32,
|
|
Scan_Decimal32,
|
|
Set_Image_Decimal32);
|
|
|
|
package Aux64 is new
|
|
Ada.Wide_Text_IO.Decimal_Aux
|
|
(Int64,
|
|
Scan_Decimal64,
|
|
Set_Image_Decimal64);
|
|
|
|
Need64 : constant Boolean := Num'Size > 32;
|
|
-- Throughout this generic body, we distinguish between the case where type
|
|
-- Int32 is acceptable and where type Int64 is needed. This Boolean is used
|
|
-- to test for these cases and since it is a constant, only code for the
|
|
-- relevant case will be included in the instance.
|
|
|
|
Scale : constant Integer := Num'Scale;
|
|
|
|
---------
|
|
-- Get --
|
|
---------
|
|
|
|
procedure Get
|
|
(File : File_Type;
|
|
Item : out Num;
|
|
Width : Field := 0)
|
|
is
|
|
pragma Unsuppress (Range_Check);
|
|
|
|
begin
|
|
if Need64 then
|
|
Item := Num'Fixed_Value (Aux64.Get (File, Width, Scale));
|
|
else
|
|
Item := Num'Fixed_Value (Aux32.Get (File, Width, Scale));
|
|
end if;
|
|
|
|
exception
|
|
when Constraint_Error => raise Data_Error;
|
|
end Get;
|
|
|
|
procedure Get
|
|
(Item : out Num;
|
|
Width : Field := 0)
|
|
is
|
|
begin
|
|
Get (Current_In, Item, Width);
|
|
end Get;
|
|
|
|
procedure Get
|
|
(From : Wide_String;
|
|
Item : out Num;
|
|
Last : out Positive)
|
|
is
|
|
pragma Unsuppress (Range_Check);
|
|
|
|
S : constant String := Wide_String_To_String (From, WCEM_Upper);
|
|
-- String on which we do the actual conversion. Note that the method
|
|
-- used for wide character encoding is irrelevant, since if there is
|
|
-- a character outside the Standard.Character range then the call to
|
|
-- Aux.Gets will raise Data_Error in any case.
|
|
|
|
begin
|
|
if Need64 then
|
|
Item := Num'Fixed_Value (Aux64.Gets (S, Last, Scale));
|
|
else
|
|
Item := Num'Fixed_Value (Aux32.Gets (S, Last, Scale));
|
|
end if;
|
|
|
|
exception
|
|
when Constraint_Error => raise Data_Error;
|
|
end Get;
|
|
|
|
---------
|
|
-- Put --
|
|
---------
|
|
|
|
procedure Put
|
|
(File : File_Type;
|
|
Item : Num;
|
|
Fore : Field := Default_Fore;
|
|
Aft : Field := Default_Aft;
|
|
Exp : Field := Default_Exp)
|
|
is
|
|
begin
|
|
if Need64 then
|
|
Aux64.Put
|
|
(File, Int64'Integer_Value (Item), Fore, Aft, Exp, Scale);
|
|
else
|
|
Aux32.Put
|
|
(File, Int32'Integer_Value (Item), Fore, Aft, Exp, Scale);
|
|
end if;
|
|
end Put;
|
|
|
|
procedure Put
|
|
(Item : Num;
|
|
Fore : Field := Default_Fore;
|
|
Aft : Field := Default_Aft;
|
|
Exp : Field := Default_Exp)
|
|
is
|
|
begin
|
|
Put (Current_Out, Item, Fore, Aft, Exp);
|
|
end Put;
|
|
|
|
procedure Put
|
|
(To : out Wide_String;
|
|
Item : Num;
|
|
Aft : Field := Default_Aft;
|
|
Exp : Field := Default_Exp)
|
|
is
|
|
S : String (To'First .. To'Last);
|
|
|
|
begin
|
|
if Need64 then
|
|
Aux64.Puts (S, Int64'Integer_Value (Item), Aft, Exp, Scale);
|
|
else
|
|
Aux32.Puts (S, Int32'Integer_Value (Item), Aft, Exp, Scale);
|
|
end if;
|
|
|
|
for J in S'Range loop
|
|
To (J) := Wide_Character'Val (Character'Pos (S (J)));
|
|
end loop;
|
|
end Put;
|
|
|
|
end Ada.Wide_Text_IO.Decimal_IO;
|