Look. I can only reiterate the second paragraph of my response to your first non-contribution to this thread:

The real question is about making explicit undef semantically different from indirect undef; and therefore making it more powerful, and useful.

I do not believe for one second that you think that `foo` is in anyway equivalent to "explicit undef".

Nor do I believe that you--uniquely amongst the responders in this thread--cannot interpret the explicit use of undef in the OP, combined with the statement "The warning is easily avoided by using '' instead of undef,", to mean anything other than I am only concerning myself with the situation where undef is explicitly coded.

So that then requires that we ask ourselves: why do you keep trying to suggest that any situation where an undifined value could be passed accidently has any bearing at all upon this discussion? What do you hope to gain? What axe are you trying to grind?

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
RIP an inspiration; A true Folk's Guy

In reply to Re^8: Use of uninitialized value in substr by BrowserUk
in thread Use of uninitialized value in substr by BrowserUk

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