@section @code{isatty}
@findex isatty
-POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/isatty.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/isatty.html}
-Gnulib module: ---
+Gnulib module: isatty
Portability problems fixed by Gnulib:
@itemize
+@item
+On native Windows, this function also returns true for character devices such
+as @file{NUL}.
+@item
+This function crashes when invoked with invalid arguments on some platforms:
+MSVC 9.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
-@item
-On Windows, @code{isatty} also returns true for character devices such as
-@file{NUL}.
@end itemize