Right, I suspected there might not be any nice way of doing it. I mean, "say" does seem to do some magic in the "no argument" case, just like "print", since it treats it differently from the "empty array" case. But maybe that's just a special rule for built-in functions.

It's weird though, because there are so many built-in functions that have the same behaviour, defaulting to $_ if there are no arguments, and it's clearly useful, so it's surprising if there's no way of recreating that for your own functions.

In reply to Re^2: Spotting an empty array as argument by Chuma
in thread Spotting an empty array as argument by Chuma

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