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Re: libstdc++/9875: filebuf doesn't handle codecvt::encoding() >1


Pétur Runólfsson wrote:

The underflow bits are still missing, however. Are you
willing to provide some tests for it too?


Will do.

Thanks Pétur.
By the way, I would appreciate also some actual ;) tests for overflow, since those
present in the PR didn't really lead to overflow for the default 8192 chars wide buffer.
(temporarily I have added some using setbuf to shorten the buffer)


Paolo.


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