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Subject:	Re: gcc-7.1.0/c++17/old-abi: empty stringstream invalid memory access
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From:	David Stacey <drstacey AT tiscali DOT co DOT uk>
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Date:	Sun, 23 Jul 2017 23:45:39 +0100
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On 23/07/17 12:38, Irfan Adilovic wrote:
> I am reproducing here a bug report I filed to gcc's bugzilla against
> gcc-7.1.0:https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81522  , in
> hopes of finding others who observed the same issue or who may have a
> solution. The bug only appears on Cygwin and only in c++17 mode with
> the old ABI.

Earlier in the month, there were a few issues reported regarding g++ 
that turned out to be a problem in signal.h. This was fixed in Cygwin 
2.8.2. Please could you verify the version of Cygwin that you're using 
(cygcheck -c cygwin). If you have an older version of Cygwin, please 
could you update and re-run your testcase.

Dave.


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