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From: Robert A Duff <bobduff@shell01.TheWorld.com>
Newsgroups: comp.lang.ada
Subject: Re: 4 beginner's questions on the PL Ada
Date: Fri, 09 Aug 2013 18:08:06 -0400
Organization: The World Public Access UNIX, Brookline, MA
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Date: 2013-08-09T18:08:06-04:00
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Emanuel Berg <embe8573@student.uu.se> writes:

> Task_Name : constant String := Image(Current_Task);
>
> It produces output like
>
> add_one_081838Dt

I doubt that "t".  ;-)

> if the task is referred to as Add_One in the code.
>
> The 8-char code that follows doesn't look like anything I
> recognize. Is it a random string ID, or is is generated out of
> anything sensible? If it always is 8 chars (and an underscore), I
> guess I could simply trim the strings.

It is the address of the task control block in hexadecimal,
which can vary in length -- e.g. on a 64-bit machine, it will
be 16 characters.

You should read the GNAT documentation on Task_Identification.Image.
Also doc for pragma Task_Name.

This is all GNAT-specific, of course.  Some other Ada compiler
can return something completely different.

Trimming the string might not be a good idea -- it uniquely identifies
the task in case the name part doesn't.  But it shouldn't be hard to
write a trimming function that won't crash on any Ada implementation,
while doing what you like for GNAT.

- Bob