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tcdrain
POSIX specification:
http://www.opengroup.org/onlinepubs/9699919799/functions/tcdrain.html
Gnulib module: —
Portability problems fixed by Gnulib:
Portability problems not fixed by Gnulib:
tcdrain
on a non-tty fails with errno
set to
EINVAL
or, on Mac OS X, also EOPNOTSUPP
or ENODEV
, rather
than ENOTTY
.