http://www.perlmonks.org?node_id=1017748


in reply to Re: open(): Is there a simple way to map between numeric open modes and "symbol modes"?
in thread open(): Is there a simple way to map between numeric open modes and "symbol modes"? (solved)

From Fmode:
my %modes; @modes{ qw < > >> +< +> +>>  } = ( 1, 2, 2, 128, 128, 128 );
Are these the official constants? If so, how do I un-OR OR results, against the other flags, to get back to these basic constants?