[Octave-bug-tracker] [bug #62723] sscanf returns an error when there is no error

[Markus Mützel]

Update of bug #62723 (project octave):

                  Status:               Confirmed => Ready For Test         

    _______________________________________________________

Follow-up Comment #7:

If I understand the standard documentation correctly, trying to read a
character past the end of the stream sets the eofbit *and* the failbit:
https://en.cppreference.com/w/cpp/io/basic_istream/get

There is still one case where the failbit isn't reset that is triggered by the
example in comment #6.
I pushed a patch here that will hopefully make this pass without breaking
other use cases:
https://hg.savannah.gnu.org/hgweb/octave/rev/b39bf92a2364

I believe that follows along the approach you used for bug #63383.

Additionally, I stumbled across some probably older code (maybe from when
`error` didn't throw an exception immediately). I moved the clean-up code to
before throwing the exception here:
https://hg.savannah.gnu.org/hgweb/octave/rev/2a12350f9410

I hope that won't cause other regressions.

Marking as ready for test again.



    _______________________________________________________

Reply to this item at:

  <https://savannah.gnu.org/bugs/?62723>

_______________________________________________
Message sent via Savannah
https://savannah.gnu.org/