Re^3: parm#4 from caller == !"eval" ?

Addendum to explain what the &x2 call does

> Subroutines may be called recursively. If a subroutine is called using the & form, the argument list is optional, and if omitted, no @_ array is set up for the subroutine: the @_ array at the time of the call is visible to subroutine instead. This is an efficiency mechanism that new users may wish to avoid.

Source perlsub

Cheers Rolf
_{(addicted to the Perl Programming Language and ☆☆☆☆ :)

Je suis Charlie!}

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Re^4: parm#4 from caller == !"eval" ? by perl-diddler (Chaplain) on Sep 13, 2017 at 22:38 UTC
To you and choroba, thanks for the example(s). I completely forgot about the '&' case. Thanks!	[reply]