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134 | ------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- A D A . W I D E _ T E X T _ I O . F L O A T _ A U X --
-- --
-- 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.Generic_Aux; use Ada.Wide_Text_IO.Generic_Aux;
with System.Img_Real; use System.Img_Real;
package body Ada.Wide_Text_IO.Float_Aux is
---------
-- Get --
---------
procedure Get
(File : File_Type;
Item : out Num;
Width : Field)
is
Buf : String (1 .. Field'Last);
Stop : Integer := 0;
Ptr : aliased 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 (Buf, Ptr'Access, Stop);
Check_End_Of_Field (Buf, Stop, Ptr, Width);
end Get;
----------
-- Gets --
----------
procedure Gets
(From : String;
Item : out Num;
Last : out Positive)
is
Pos : aliased Integer;
begin
String_Skip (From, Pos);
Item := Scan (From, Pos'Access, From'Last);
Last := Pos - 1;
exception
when Constraint_Error => raise Data_Error;
end Gets;
---------
-- Put --
---------
procedure Put
(File : File_Type;
Item : Num;
Fore : Field;
Aft : Field;
Exp : Field)
is
Buf : String (1 .. Max_Real_Image_Length);
Ptr : Natural := 0;
begin
Set_Image_Real (Long_Long_Float (Item), Buf, Ptr, Fore, Aft, Exp);
Put_Item (File, Buf (1 .. Ptr));
end Put;
----------
-- Puts --
----------
procedure Puts
(To : out String;
Item : Num;
Aft : Field;
Exp : Field)
is
Buf : String (1 .. Max_Real_Image_Length);
Ptr : Natural := 0;
begin
Set_Image_Real
(Long_Long_Float (Item), Buf, Ptr, Fore => 1, Aft => Aft, Exp => Exp);
if Ptr > To'Length then
raise Layout_Error;
else
for J in 1 .. Ptr loop
To (To'Last - Ptr + J) := Buf (J);
end loop;
for J in To'First .. To'Last - Ptr loop
To (J) := ' ';
end loop;
end if;
end Puts;
end Ada.Wide_Text_IO.Float_Aux;
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