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-- To hexadecimal conversions.
-- Copyright (C) 2006 Tristan Gingold
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 2 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program. If not, see <gnu.org/licenses>.
with Ada.Unchecked_Conversion;
package body Hex_Images is
type Hex_Str_Type is array (0 .. 15) of Character;
Hexdigits : constant Hex_Str_Type := "0123456789abcdef";
function Hex_Image (B : Unsigned_8) return String is
Res : String (1 .. 2);
begin
for I in 1 .. 2 loop
Res (I) := Hexdigits
(Natural (Shift_Right (B, 8 - 4 * I) and 16#0f#));
end loop;
return Res;
end Hex_Image;
function Conv is new Ada.Unchecked_Conversion
(Source => Integer_32, Target => Unsigned_32);
function Hex_Image (W : Unsigned_32) return String is
Res : String (1 .. 8);
begin
for I in 1 .. 8 loop
Res (I) := Hexdigits
(Natural (Shift_Right (W, 32 - 4 * I) and 16#0f#));
end loop;
return Res;
end Hex_Image;
function Hex_Image (W : Unsigned_64) return String is
Res : String (1 .. 16);
begin
for I in 1 .. 16 loop
Res (I) := Hexdigits
(Natural (Shift_Right (W, 64 - 4 * I) and 16#0f#));
end loop;
return Res;
end Hex_Image;
function Hex_Image (W : Unsigned_16) return String is
Res : String (1 .. 4);
begin
for I in 1 .. 4 loop
Res (I) := Hexdigits
(Natural (Shift_Right (W, 16 - 4 * I) and 16#0f#));
end loop;
return Res;
end Hex_Image;
function Hex_Image (W : Integer_32) return String is
begin
return Hex_Image (Conv (W));
end Hex_Image;
end Hex_Images;
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