@node dup
@section @code{dup}
@findex dup

POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/dup.html}

Gnulib module: ---

Portability problems fixed by Gnulib:
@itemize
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@end itemize
