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Re^2: Want for a name?

by hdb (Monsignor)
on Dec 11, 2013 at 20:28 UTC ( #1066711=note: print w/replies, xml ) Need Help??


in reply to Re: Want for a name?
in thread Want for a name?

Would there be a way to use $a and $b as in reduce?

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Re^3: Want for a name?
by LanX (Cardinal) on Dec 11, 2013 at 20:40 UTC
    sure, you need to localize them.

    But $a and $b always have the risk to be lexicals from the outer scope², I wanted to avoid discussing that problem.¹

    It's about naming after all...

    Cheers Rolf

    ( addicted to the Perl Programming Language)

    ¹) compare this error

      DB<108> my $a=3; sort {$a <=> $b} @a

Can't use "my $a" in sort comparison at ...

    [download]

    ²) being bound to another package can be solved by investigating the caller, but checking for lexicals involves padwalker.

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