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Postings from April 2000
>>>>> On Thu, 13 Apr 2000 15:43:34 +0200, operator@periszrz.zrz.tu-berlin.de (ZRZ-Operator) said:
> This is a bug report for perl from siegel@zrz.tu-berlin.de,
> generated with the help of perlbug 1.28 running under perl v5.6.0.
> -----------------------------------------------------------------
> [Please enter your report here]
> Please watch this:
> perl -e 'sub foo (;&) {} foo {};'
> Type of arg 1 to main::foo must be block (not single ref constructor) at -e line 1, near "};"
> Calling foo with a bare block should be possible, at least perlsub doesn't
> say otherwise. The error goes away when you make the coderef parameter
> required, changing "(;&)" to "(&)".
You are required to say
perl -e 'sub foo (;&) {} foo sub {};'
^^^
> The bug, if it is a bug, was present in Perl 5.5 as well, though the
> message said "(not scalar ref constructor)" instead of "...single...".
I think the bug is currently a (unsufficiently?) documented
misfeature. Here the easy to miss sentence from man perlsub:
An & requires an
anonymous subroutine, which, if passed as the first
argument, does not require the "sub" keyword or a
subsequent comma.
That seems to need a rewording, maybe
.... if passed as the first mandatory argument ....
Cheers,
--
andreas
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