Re^4: shift vs @_ (alias)

[tye]

in reply to Re^3: shift vs @_
in thread shift vs @_

$_[0] is actually a reference to the first argument passed by the caller.

I'm sure you know what you meant, but... $_[0] is (usually) an alias to the first argument. If it were a reference then you'd have to use ${$_[0]} or such.