-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 According to Eric Blake on 11/5/2009 10:43 AM: > $ cat foo.c > #include <stdio.h> > int main() > { > if (stderr != freopen("/dev/null","w",stderr)) > return 5; > return fileno(stderr); > } > $ ./foo && echo $? > 2 > $ ./foo <&- && echo $? > 0 > $ ./foo >&- && echo $? > 1
I typed this too fast. To see the real answer: $ ./foo; echo $? 2 $ ./foo <&-; echo $? 0 $ ./foo >&-; echo $? 1 - -- Don't work too hard, make some time for fun as well! Eric Blake e...@byu.net -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkrzhnYACgkQ84KuGfSFAYD5qgCgmzIwCITOT4an9/YCpwdBtRn3 ZAoAn22OK8jIUQdbODRKA/Sny3NeK4X/ =WRpE -----END PGP SIGNATURE-----