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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- S Y S T E M . I M G _ L F L T --
-- --
-- S p e c --
-- --
-- Copyright (C) 2021, 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. --
-- --
------------------------------------------------------------------------------
-- This package contains routines for the Image attribute of fixed or floating
-- point types based on Long_Float, also used for Float_IO/Fixed_IO output.
with System.Img_LLU;
with System.Image_R;
with System.Powten_LFlt;
with System.Unsigned_Types;
package System.Img_LFlt is
pragma Pure;
-- Note that the following instantiation is really for a 32-bit target,
-- where 128-bit integer types are not available. For a 64-bit targaet,
-- it is possible to use Long_Long_Unsigned and Long_Long_Long_Unsigned
-- instead of Unsigned and Long_Long_Unsigned, in order to double the
-- number of significant digits. But we do not do it by default to avoid
-- dragging 128-bit integer types for the sake of backward compatibility.
package Impl is new Image_R
(Long_Float,
System.Powten_LFlt.Maxpow,
System.Powten_LFlt.Powten'Address,
Unsigned_Types.Long_Long_Unsigned,
System.Img_LLU.Set_Image_Long_Long_Unsigned);
procedure Image_Fixed
(V : Long_Float;
S : in out String;
P : out Natural;
Aft : Natural)
renames Impl.Image_Fixed_Point;
procedure Image_Long_Float
(V : Long_Float;
S : in out String;
P : out Natural;
Digs : Natural)
renames Impl.Image_Floating_Point;
procedure Set_Image_Long_Float
(V : Long_Float;
S : in out String;
P : in out Natural;
Fore : Natural;
Aft : Natural;
Exp : Natural)
renames Impl.Set_Image_Real;
end System.Img_LFlt;