Convert Integer Value to Hexadecimal in Ada

Question

There is some kind of workaround to take advantage of the following and saving it?

Put_Line(MyNum, Base => 16);

which is converting for instance 255 to its proper value in hexadecimal FF, but just for display purposes. Can I do something similar, but to save the result?

Answer 1

You could use the version of Put that outputs to a string:

procedure Put(To   : out String;
              Item : in Num;
              Base : in Number_Base := Default_Base);

Answer 2

Can I do something similar, but to save the result?

Yes, it's not "the simplest" way, but it's very general and flexible if you use Streams.

The wikibook has an example, though it's a little 'wordy' for what you intend: http://en.wikibooks.org/wiki/Ada_Programming/Libraries/Ada.Streams/Example

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The simple "one-liner" is Ada.Integer_Text_IO.Put.

Ada95's RM describes integer_text_IO in Annex A, 10.8.