---------- Forwarded message ----------
From: Karl Forner <karl.forner@gmail.com>
Date: Wed, Sep 15, 2010 at 10:14 AM
Subject: Re: [Rd] warning or error upon type/storage mode coercion?
To: Stefan Evert <stefanML@collocations.de>


I'm a Perl fan, and I really really miss the "use strict" feature. IMHO it's
very error-prone not to have thios safety net.

Best,



On Wed, Sep 15, 2010 at 9:54 AM, Stefan Evert <stefanML@collocations.de>wrote:

>
> On 15 Sep 2010, at 03:23, Benjamin Tyner wrote:
>
> > 2. So, assuming the answer to (1) is a resounding "no", does anyone care
> to state an opinion regarding the philosophical or historical rationale for
> why this is the case in R/S, whereas certain other interpreted languages
> offer the option to perform strict type checking? Basically, I'm trying to
> explain to someone from a perl background why the (apparent) lack of a "use
> strict; use warnings;" equivalent is not a hindrance to writing bullet-proof
> R code.
>
> If they're from a Perl background, you might also want to point out to them
> that (base) Perl doesn't do _any_ type checking at all, and converts types
> as needed.  As in ...
>
> $x = "0.0";
> if ($x) ... # true
> if ($x+0) ... # false
>
> AFAIK, that's one of the main complaints that people have about Perl.  "use
> strict" will just make sure that all variables have to be declared before
> they're used, so you can't mess up by mistyping variable names.  Which is
> something I'd very much like to have in R occasionally ...
>
> Best,
> Stefan
>
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