You might want to add that for dualvars, it is the stringy part of the value which is tested for truthfulness.

use Scalar::Util 'dualvar';

dualvar(1, "0");  # false
dualvar(0, "1");  # true

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toby döt ink

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

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