I'm trying to extend this to a comparable readable() function.
sub readable {
my $fh = shift;
(O_RDONLY | O_RDWR) & fcntl( $fh, F_GETFL, my $slush);
}
for (qw/ > < >> +< +> /) {
open my $fh, $_, 'foo' or warn $! and next;
print
"$_\t",
readable($fh)? 'readable.': 'not readable.',
$/;
}
__END__
> not readable.
< not readable.
>> not readable.
+< readable.
+> readable.
Huh??!
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