[PATCH] D20334: [libcxx] Fix a bug in strstreambuf::overflow

[Ben Craig via cfe-commits]

bcraig added a comment.

In http://reviews.llvm.org/D20334#438052, @ahatanak wrote:

> My understanding is that typically std::ends is explicitly appended to null-terminate the stream buffer. The test case in the example does that.
>
> http://en.cppreference.com/w/cpp/io/ostrstream/str


Doh!  You're right.

I'm still confused though, so please entertain my blind fumblings.

ASAN is complaining about an excessively large read.  If the problem was in overflow, I would expect ASAN to complain about an out-of-bounds write instead.


http://reviews.llvm.org/D20334