Inheritance |
GeneratorType
View Protocol Hierarchy →
|
---|---|
Import |
|
Instance Methods
Advance to the next element and return it, or nil
if no next
element exists.
Requires: No preceding call to self.next()
has returned
nil
.
Declaration
mutating
func
next
() -
>
UnicodeScalar
?
A type whose instances can produce the elements of this sequence, in order.