1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
5 -- S Y S T E M . I M G _ L F L T --
9 -- Copyright (C) 2021-2023, Free Software Foundation, Inc. --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
18 -- As a special exception under Section 7 of GPL version 3, you are granted --
19 -- additional permissions described in the GCC Runtime Library Exception, --
20 -- version 3.1, as published by the Free Software Foundation. --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
27 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
30 ------------------------------------------------------------------------------
32 -- This package contains routines for the Image attribute of fixed or floating
33 -- point types based on Long_Float, also used for Float_IO/Fixed_IO output.
37 with System
.Powten_LFlt
;
38 with System
.Unsigned_Types
;
40 package System
.Img_LFlt
is
42 -- Note that the following instantiation is really for a 32-bit target,
43 -- where 128-bit integer types are not available. For a 64-bit targaet,
44 -- it is possible to use Long_Long_Unsigned and Long_Long_Long_Unsigned
45 -- instead of Unsigned and Long_Long_Unsigned, in order to double the
46 -- number of significant digits. But we do not do it by default to avoid
47 -- dragging 128-bit integer types for the sake of backward compatibility.
49 package Impl
is new Image_R
51 System
.Powten_LFlt
.Maxpow
,
52 System
.Powten_LFlt
.Powten
'Address,
53 Unsigned_Types
.Long_Long_Unsigned
,
54 System
.Img_LLU
.Set_Image_Long_Long_Unsigned
);
61 renames Impl
.Image_Fixed_Point
;
63 procedure Image_Long_Float
68 renames Impl
.Image_Floating_Point
;
70 procedure Set_Image_Long_Float
77 renames Impl
.Set_Image_Real
;