perl6/doc/lib/Bool
doc src
(title) enum Bool
enum Bool <False True>
An enum for boolean true/false decisions
Operators
(head2) prefix:
multi sub prefix:<?>(Mu) returns Bool:D
Coerces its argument to Bool .
(head2) prefix:
multi sub prefix:<so>(Mu) returns Bool:D
Coerces its argument to Bool , has looser precedence than < prefix:<? >>.
