with Ada.Text_IO.Generic_Aux; use Ada.Text_IO.Generic_Aux;
with Ada.Text_IO.Float_Aux; use Ada.Text_IO.Float_Aux;
with System.Img_Dec; use System.Img_Dec;
with System.Img_LLD; use System.Img_LLD;
with System.Val_Dec; use System.Val_Dec;
with System.Val_LLD; use System.Val_LLD;
package body Ada.Text_IO.Decimal_Aux is
function Get_Dec
(File : in File_Type;
Width : in Field;
Scale : Integer)
return Integer
is
Buf : String (1 .. Field'Last);
Ptr : aliased Integer;
Stop : Integer := 0;
Item : Integer;
begin
if Width /= 0 then
Load_Width (File, Width, Buf, Stop);
String_Skip (Buf, Ptr);
else
Load_Real (File, Buf, Stop);
Ptr := 1;
end if;
Item := Scan_Decimal (Buf, Ptr'Access, Stop, Scale);
Check_End_Of_Field (Buf, Stop, Ptr, Width);
return Item;
end Get_Dec;
function Get_LLD
(File : in File_Type;
Width : in Field;
Scale : Integer)
return Long_Long_Integer
is
Buf : String (1 .. Field'Last);
Ptr : aliased Integer;
Stop : Integer := 0;
Item : Long_Long_Integer;
begin
if Width /= 0 then
Load_Width (File, Width, Buf, Stop);
String_Skip (Buf, Ptr);
else
Load_Real (File, Buf, Stop);
Ptr := 1;
end if;
Item := Scan_Long_Long_Decimal (Buf, Ptr'Access, Stop, Scale);
Check_End_Of_Field (Buf, Stop, Ptr, Width);
return Item;
end Get_LLD;
function Gets_Dec
(From : in String;
Last : access Positive;
Scale : Integer)
return Integer
is
Pos : aliased Integer;
Item : Integer;
begin
String_Skip (From, Pos);
Item := Scan_Decimal (From, Pos'Access, From'Last, Scale);
Last.all := Pos - 1;
return Item;
exception
when Constraint_Error =>
Last.all := Pos - 1;
raise Data_Error;
end Gets_Dec;
function Gets_LLD
(From : in String;
Last : access Positive;
Scale : Integer)
return Long_Long_Integer
is
Pos : aliased Integer;
Item : Long_Long_Integer;
begin
String_Skip (From, Pos);
Item := Scan_Long_Long_Decimal (From, Pos'Access, From'Last, Scale);
Last.all := Pos - 1;
return Item;
exception
when Constraint_Error =>
Last.all := Pos - 1;
raise Data_Error;
end Gets_LLD;
procedure Put_Dec
(File : in File_Type;
Item : in Integer;
Fore : in Field;
Aft : in Field;
Exp : in Field;
Scale : Integer)
is
Buf : String (1 .. Field'Last);
Ptr : Natural := 0;
begin
Set_Image_Decimal (Item, Buf, Ptr, Scale, Fore, Aft, Exp);
Put_Item (File, Buf (1 .. Ptr));
end Put_Dec;
procedure Put_LLD
(File : in File_Type;
Item : in Long_Long_Integer;
Fore : in Field;
Aft : in Field;
Exp : in Field;
Scale : Integer)
is
Buf : String (1 .. Field'Last);
Ptr : Natural := 0;
begin
Set_Image_Long_Long_Decimal (Item, Buf, Ptr, Scale, Fore, Aft, Exp);
Put_Item (File, Buf (1 .. Ptr));
end Put_LLD;
procedure Puts_Dec
(To : out String;
Item : in Integer;
Aft : in Field;
Exp : in Field;
Scale : Integer)
is
Buf : String (1 .. Field'Last);
Fore : Integer;
Ptr : Natural := 0;
begin
if Exp = 0 then
Fore := To'Length - 1 - Aft;
else
Fore := To'Length - 2 - Aft - Exp;
end if;
if Fore < 1 then
raise Layout_Error;
end if;
Set_Image_Decimal (Item, Buf, Ptr, Scale, Fore, Aft, Exp);
if Ptr > To'Length then
raise Layout_Error;
else
To := Buf (1 .. Ptr);
end if;
end Puts_Dec;
procedure Puts_LLD
(To : out String;
Item : in Long_Long_Integer;
Aft : in Field;
Exp : in Field;
Scale : Integer)
is
Buf : String (1 .. Field'Last);
Fore : Integer;
Ptr : Natural := 0;
begin
if Exp = 0 then
Fore := To'Length - 1 - Aft;
else
Fore := To'Length - 2 - Aft - Exp;
end if;
if Fore < 1 then
raise Layout_Error;
end if;
Set_Image_Long_Long_Decimal (Item, Buf, Ptr, Scale, Fore, Aft, Exp);
if Ptr > To'Length then
raise Layout_Error;
else
To := Buf (1 .. Ptr);
end if;
end Puts_LLD;
end Ada.Text_IO.Decimal_Aux;