in reply to Re^2: How to differentiate an empty array from an unitialized one?
in thread How to differentiate an empty array from an unitialized one?

it would be incorrect for Perl to consider an uninitialized value to be an empty string

That is quite incorrect. Perl's undef (the default value for uninitialized scalars) evaluates to an empty string (or zero in numeric context). If warnings are enabled, this will usually warn, but only to indicate that the programmer may have made a mistake, not because it's inherently wrong.

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