[PATCH] D40677: [libcxx] Make std::basic_istream::get 0-terminate input array in case of error.

[Volodymyr Sapsai via Phabricator via cfe-commits]

vsapsai created this revision.

It covers the cases when the sentry object returns false and when an exception
was thrown. Corresponding standard paragraph is C++14 [istream.unformatted]p9:

  [...] In any case, if n is greater than zero it then stores a null
  character into the next successive location of the array.

rdar://problem/35566567


https://reviews.llvm.org/D40677

Files:
  libcxx/include/istream
  libcxx/test/std/input.output/iostream.format/input.streams/istream.unformatted/get_pointer_size.pass.cpp
  libcxx/test/std/input.output/iostream.format/input.streams/istream.unformatted/get_pointer_size_chart.pass.cpp

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