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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: Generic Containers in Ada2005
Date: Wed, 09 Feb 2011 20:06:26 +0000
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Bryan <brobinson.eng@gmail.com> writes:

> Thanks for the links to the external libraries, I've downloaded the
> Booch Components, but I'm not sure how to build and install the
> library.  Is there an installation guide that goes over the necessary
> environment variables and steps?  Just running running make does not
> work, and I'm not sure what to do with gnat-booch.sh and gnat-
> booch.conf.

Oh dear. After all this time & I haven't thought of it from a new user's
point of view. I've logged a bug report and assigned it to myself.

I don't understand the gnat-booch.sh &c setup myself, that was Martin
Krischik's work.

The simplest way ahead from what you have (if you're using GNAT) is to
include the BCs in the source path for your build - eg,

   $ gnatmake -gnat05 -I$HOME/bc-20090226/src foo.adb

If you're already using GPRs, or if you're not using GNAT, include the
sources (bc-yyyymmdd/src/*.ad?) in your compilation source path.

> On Feb 9, 3:33 am, "Dmitry A. Kazakov" <mail...@dmitry-kazakov.de>
> wrote:
>> I think that queue is a too specific container to be included into
>> standard library. Depending on the number of concurrent peers
>> accessing the queue ends, whether the queue has fixed size, whether
>> elements are copied or referenced (e.g. statically allocated elements
>> moved from queue to queue) the implementation and interface may
>> sufficiently vary.
>
> Regarding concurrent peers, are the generic containers provided in the
> Ada.Containers library thread-safe?

No. Nor are the BCs. I believe that the Ada2012 effort includes
synchronised queues (though the last I heard there was a serious
problem).

Personally I think Dmitry is right. Nothing to stop you using
non-thread-safe containers as part of the implementation of somethin
appropriate to your problem.