ref now returns an empty string, instead of undef, when its argument is not a reference. Hence expressions like 

ref $x eq 'CODE'

[download]
don't produce annoying warnings in such cases.

There's a little coding guideline lurking in there somewhere... Something like "never return undef when the empty string would be just as good."

the lowliest monk

In reply to Re: Deprecated annoyances by tlm
in thread Deprecated annoyances by tilly

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