In Perl land, undef is undef is undef....

And I believe differently.

I've been looking for another example, and I can't find one. Do you know of another case where explicit undef or PL_sv_undef is distinguished from undefined?

If there is an example of undef not being undef other than the previously mentioned open hack, it's well hidden. If you believe differently, there's gotta be some obvious example I'm missing.

(Note that I only spoke about the current state of Perl land.)

In reply to Re^13: Use of uninitialized value in substr by ikegami
in thread Use of uninitialized value in substr by BrowserUk

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