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Postings from December 2015
how about null sub names? I wonder why the attached file isn't a syntax
error.
>
> -----------------------------------------------------------------------
> C:\p523\src>perl t.pl
> Undefined subroutine &main:: called at t.pl line 2.
>
> C:\p523\src>
> -----------------------------------------------------------------------
You are not defining a null sub in the first line. You are creating a
sub ref and then throwing it away before
trying to call the undefined subroutine.
You would need to do
*{' '} = sub {print 'hello world';};
&{' '}();
Which works fine on my version of Perl
I also did
*{''} = sub {print 'hello world';};
&{''}();
which also worked fine.
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