In fact the only time you would now (afaik) is if you want a a ref-to-sub.

or when forwarding to another sub:

sub _foo_impl { ... }
sub foo {
  ....
  &_foo_impl;
  ...
}

foo(1,2,3); # _foo_impl(1,2,3) gets called
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In fact the only time you would now (afaik) is if you want a a ref-to-sub.

or when forwarding to another sub:

...or when you want to bypass the prototype of the sub you're calling.