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Re: a warning I'd like to see

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John W. Krahn
January 25, 2008 05:52
Re: a warning I'd like to see
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Abigail wrote:
> On Thu, Jan 24, 2008 at 05:45:18PM -0600, David Nicol wrote:
>> alert me when I give map an arrayref instead of an array
>> $ perl -le 'use warnings; print join "|", map {$_ + 2} [ 1..6 ]'
>> 268504834
>> this happened to me today, as a function was returning an arrayref and
>> I forgot to wrap it in @{...} before feeding it to map.
> You'd like to see that Schwartzian Transfers start to warn?

What's a "Schwartzian Transfer"?  I've never heard of that before.


Perl isn't a toolbox, but a small machine shop where you
can special-order certain sorts of tools at low cost and
in short order.                            -- Larry Wall

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