Hi, POSIX [1] requires that iswcntrl (EOF) == 0.
This was true in CYGWIN_NT-10.0 2.9.0(0.318/5/3) (x86_64) but is no longer true in CYGWIN_NT-10.0 2.11.1(0.329/5/3) (x86_64). (Reported by Assaf Gordon.) Looking at the changes that occurred in the cygwin git between 2.9.0 (on 2017-08-03) and 2.11.1 (on 2018-08-31) it appears to me that the culprit is the commit 41f72ab4d7c404b8ac2a5e1187d79164992e4483 (on 2018-03-09). I would like to CC its author, Thomas Wolff, but he gave an invalid email address <min...@users.noreply.github.com> in the commit. This regression was found by gnulib's test suite https://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=blob;f=tests/test-wctype-h.c Bruno -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
