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Date: Thu, 29 Sep 2005 12:30:03 +0200
From: DervishD <zsh@dervishd.net>
To: Bart Schaefer <schaefer@brasslantern.com>
Cc: Zsh Users <zsh-users@sunsite.dk>
Subject: Re: Arithmetic expression and TRY_BLOCK_ERROR
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	version=3.0.4

    Hi Bart :)

 * Bart Schaefer <schaefer@brasslantern.com> dixit:
> On Sep 28, 10:46am, DervishD wrote:
> }
> }     'let variable=0' is shorter ;) I really don't know the reason,
> } but I can find this kind of assignment everywhere :-/
> I suspect it's simply Peter's preference to always use variables in
> a consistent context, i.e., either in math expressions or out, not
> some of each.  A possible reason for this is future-proofing.

    I understand, thanks for the explanation :)

> Also, some people prefer the readability of being able to put spaces
> around the "=".

    Me, for example. In fact, the entire ((...)) syntax is quite good
when reading shource files, it really catches the eye.
 
> However, doing integer/float assignments in math context is marginally
> more efficient than doing them as plain assignments.  In a single
> command this is probably offset by the overhead of parsing the (( )),
> but in a loop it could become important, and if you're in the habit of
> always writing the (( )) you won't forget them where they matter.

    Thanks for both the explanation and the advice :)

    Raúl Núñez de Arenas Coronado

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