Nice! I was worried that <=> can't handle "" without warnings, but that's not the case here. :)

(empty string is the false value returned from defined(undef) )

EDIT

Forget it, I'm getting old ... false is a dual var which resolves to 0 in numeric context.

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Je suis Charlie!

In reply to Re^3: Sort undef by LanX
in thread Sort undef by Anonymous Monk

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