BEGIN { skip "requires 5.22.0" if $^V lt v5.22.0 } # omit
use if $^V ge v5.20.0, 'experimental', 'bitwise'; # omit
my($a, $b);
$a = $a &. $b;
$a &.= $b;
$a = $a |. 'str';
$a |.= 'str';
$a = $a ^. 1;
$a ^.= $b;
$a = ~.$a
