I suppose one could use sub f { return (); } if (f()) {}, but that's a very bad practice. (A sub that's expected to return a scalar should do so even in list context.)

I agree that subs that are expected to return a scalar should do return undef because of the problems with my %hash = ( k => f() );, but there are also some good arguments against return undef in other cases - as you've said, there are exceptions.

I mostly mentioned it because the old section "Truth and Falsehood" mentioned it, although with an attempt to improve the wording, as you've suggested yourself in the past.

Update: I missed your ninja edits, but I hope I've cleared up your bafflement nonetheless. Please feel free to add any information you think is missing!

In reply to Re^2: Truth and Falsehood by haukex
in thread Truth and Falsehood by haukex

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