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Date: Thu, 2 Dec 2021 16:49:24 -0800 (PST)
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Subject: Re: String Buffer
From: Kevin Chadwick <kevc3no4@gmail.com>
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Xref: reader02.eternal-september.org comp.lang.ada:63194
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> And note, that in most cases it is really thoughtless as the choice is=20
> made on the basis of how easy it is to declare a string component of a=20
> record type and then rewrite it.=20
>=20
> Later on throughout the rest of the program the user of Unbounded_String=
=20
> will be consistently punished for that poor choice because normal string=
=20
> operations are very uncomfortable with Unbounded_String. But that=20
> happens later. Right now and here, let us save a couple of code lines.=20
>=20
> So the simplest and most persuasive blanket statement is OK to dissuade=
=20
> people from poor choices.

I think I am glad that I am understanding this point about preferring strin=
gs early on in my Ada usage. Of course it is very easy to convert to a Stri=
ng as needed and whilst Randy mentioned yuck on "use" use, which I never us=
e. I find package renames work well. I was thinking maybe you should never =
propagate an unbounded but then I am sure there will be the occasional scen=
ario, where you expect the caller most likely wants to append and the code =
reads better without declares. As always...it depends..I guess?

With regard to a String buffer. It just occurred to me that the reason boun=
ded is more efficient than unbounded is because, you could consider the bou=
nd max as a one time equivalent to strings.Builders grow(). In Go, I would =
try to only call grow, once anyway.