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64. Exception handling inbasic_istream::operator>>(basic_streambuf*)

Section: 31.7.5.3.3[istream.extractors]Status:TC1Submitter: Matt AusternOpened: 1998-08-11Last modified: 2017-04-22

Priority:Not Prioritized

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Discussion:

27.6.1.2.3, paragraph 13, is ambiguous. It can be interpreted twodifferent ways, depending on whether the second sentence is read as anelaboration of the first.

Proposed resolution:

Replace [istream::extractors], paragraph 13, which begins"If the function inserts no characters ..." with:

If the function inserts no characters, it callssetstate(failbit), which may throwios_base::failure (27.4.4.3). If it inserted no characters because it caught an exception thrown while extracting characters fromsb andfailbit is on inexceptions() (27.4.4.3), then the caught exception is rethrown.