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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- A D A . T E X T _ I O . F L O A T _ I O --
-- --
-- S p e c --
-- --
-- Copyright (C) 1992-2023, Free Software Foundation, Inc. --
-- --
-- This specification is derived from the Ada Reference Manual for use with --
-- GNAT. The copyright notice above, and the license provisions that follow --
-- apply solely to the contents of the part following the private keyword. --
-- --
-- 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. --
-- --
------------------------------------------------------------------------------
-- In Ada 95, the package Ada.Text_IO.Float_IO is a subpackage of Text_IO.
-- This is for compatibility with Ada 83. In GNAT we make it a child package
-- to avoid loading the necessary code if Float_IO is not instantiated. See
-- routine Rtsfind.Check_Text_IO_Special_Unit for a description of how we
-- patch up the difference in semantics so that it is invisible to the Ada
-- programmer.
private generic
type Num is digits <>;
package Ada.Text_IO.Float_IO with
SPARK_Mode => On,
Always_Terminates
is
Default_Fore : Field := 2;
Default_Aft : Field := Num'Digits - 1;
Default_Exp : Field := 3;
procedure Get
(File : File_Type;
Item : out Num;
Width : Field := 0)
with
Pre => Is_Open (File) and then Mode (File) = In_File,
Global => (In_Out => File_System),
Exceptional_Cases => (Data_Error | End_Error => Standard.True);
procedure Get
(Item : out Num;
Width : Field := 0)
with
Post =>
Line_Length'Old = Line_Length
and Page_Length'Old = Page_Length,
Global => (In_Out => File_System),
Exceptional_Cases => (Data_Error | End_Error => Standard.True);
procedure Put
(File : File_Type;
Item : Num;
Fore : Field := Default_Fore;
Aft : Field := Default_Aft;
Exp : Field := Default_Exp)
with
Pre => Is_Open (File) and then Mode (File) /= In_File,
Post =>
Line_Length (File)'Old = Line_Length (File)
and Page_Length (File)'Old = Page_Length (File),
Global => (In_Out => File_System),
Exceptional_Cases => (Layout_Error => Line_Length (File) /= 0);
procedure Put
(Item : Num;
Fore : Field := Default_Fore;
Aft : Field := Default_Aft;
Exp : Field := Default_Exp)
with
Post =>
Line_Length'Old = Line_Length
and Page_Length'Old = Page_Length,
Global => (In_Out => File_System),
Exceptional_Cases => (Layout_Error => Line_Length /= 0);
procedure Get
(From : String;
Item : out Num;
Last : out Positive)
with
Global => null,
Exceptional_Cases => (Data_Error => Standard.True);
procedure Put
(To : out String;
Item : Num;
Aft : Field := Default_Aft;
Exp : Field := Default_Exp)
with
Global => null,
Exceptional_Cases => (Layout_Error => Standard.True);
private
pragma Inline (Get);
pragma Inline (Put);
end Ada.Text_IO.Float_IO;