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Reply-To: "James S. Rogers" <jimmaureenrogers@worldnet.att.net>
From: "James S. Rogers" <jimmaureenrogers@worldnet.att.net>
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Subject: Re: String library with garbage collection?
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Date: Thu, 09 Jan 2003 20:46:45 GMT
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"Craig Carey" <research@ijs.co.nz> wrote in message
news:u2ar1vcnuqia1j380gc3pk134rg87dgvba@4ax.com...
>
> On Thu, 09 Jan 2003 11:33:56 +0100, Ingo "I. Marks"
<nospam_adv@region-nord.de>
>  wrote:
>
> >I'm looking for an open source dynamic string library with garbage
> >collection for Ada95.
> >
> >Any hints?
> >
>
> I have a "faster than Unbounded Strings" strings package here:
>
>    http://www.ijs.co.nz/code/ada95_strings_pkg.zip
>
>    package StriUnli, 17KB, updated in Jan 2003, seems to run well.
>
> That package does not implement garbage collecting. Also it is not
'dynamic'.
> Each string has waste and a way of resolving that is to have the calling
> program shift it into global variables if possible.

Ada.Strings.Unbounded is not intended to be fast. It is intended
to be dynamic. Ada strings are fast and inflexible. The package
Ada.Strings.Unbounded allows you to instantiate fast and flexible
strings.

The placement of variables in global scope can cause severe problems
in a concurrent system. Be very careful when not to use global variables
with tasks.

Jim Rogers