If a close fails, I surely want to die, as this is an unrecoverable error.

Absolutely not!

I could just warn, but then? what next?

It obviously depends upon what else your program is doing, but a few ideas:

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.
"Too many [] have been sedated by an oppressive environment of political correctness and risk aversion."

In reply to Re^5: using lexically scoped variable as a filehandle by BrowserUk
in thread using lexically scoped variable as a filehandle by varian

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