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From: Ludovic Brenta <ludovic@ludovic-brenta.org>
Newsgroups: comp.lang.ada
Subject: Re: Nested declares, constant size arrays and clarity
References: <fe1748$it1$1@nemesis.news.tpi.pl>
	<87641n92tc.fsf@ludovic-brenta.org>
	<fe29fv$ocg$3@atlantis.news.tpi.pl>
Date: Thu, 04 Oct 2007 13:33:10 +0200
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Date: 2007-10-04T13:33:10+02:00
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Mateusz Papiernik <mati@maticomp.net> writes:

> Ludovic Brenta pisze:
>> Yes, it is called an "unconstrained array type".  Here is how you
>> would do it:
>
> Thanks! That's something I missed reading docs. Basically, that's
> exactly what I want to do.
>
>> PS. What I described above is exactly how the predefined type String
>> works; it is an unconstrained array of Character's.  Look at the
>> standard subprograms that operate on Strings for more inspiration.
>
> With strings I also have to work some way. As for now I'm using
> Unbounded_Strings, because easy implementations of functions like
> split (I'm parsing CSV file). Is it a good practice to use U_S, or
> should I fall back to normal strings and fight with implementation?

I guess that depends on whether the input lines have a fixed length or
not.  The main disadvantage of Unbounded_Strings are that they are
much slower than regular Strings.  A good compromise might be to use
Bounded_Strings instead: you would get efficiency and flexibility at
the same time at the cost of perhaps consuming more memory than
strictly necessary.

-- 
Ludovic Brenta.