Re: convert integer base10 into base16

[Stephen Leake <stephen.a.leake.1@gsfc.nasa.gov>]

c-kif-kif@eudoramail.com (c-kif-kif) writes:

> I'm shure this question has been answered a million times, 
> but i still can't get it right.
> 
> It's easy to convert base10 into base16 :
> 	a : integer := 16#A#;
> 	a := Integer'Value (Integer'Image(a)); -- result 10
> 
> But how can i convert from base10 to base16 or other ?
> 
> I don't want to write it on screen, so i think it's not with put/get
> how it works.

It is _only_ when you write it to a screen or a string that the notion
of base 10 or base 16 matters. When an integer is stored in a
variable, such as 'a' above, it is represented as a particular pattern
of bits in RAM, normally base 2 binary.

Ada.Integer_Text_IO can write to a string as well as to the screen or
a file:

with Ada.Text_IO;
with Ada.Integer_Text_IO;
procedure Hex_Image is
   A : Integer := 10;
   Image_A : String (1 .. 10); -- bigger than needed, padded with spaces
begin
   Ada.Integer_Text_IO.Put (To => Image_A, Item => A, Base => 16);

   Ada.Text_IO.Put_Line ("The image we get is '" & Image_A & "'");
end Hex_Image;

-- 
-- Stephe