prefixed - Factor Documentation

Vocabulary
sequences .prefixed

Definition

USING: sequences ;

IN: sequences.prefixed

TUPLE: prefixed
{ seq sequence read-only initial: f } { elt read-only } ;

Methods

USING: accessors math sequences sequences.prefixed ;

M: prefixed length seq>> length 1 + ;

USING: accessors kernel math sequences.prefixed
sequences.private ;

M: prefixed nth-unsafe
over zero?
[ nip elt>> ] [ [ 1 - ] [ seq>> ] bi* nth-unsafe ] if ;