evens

Vocabulary

sequences.extras

Class description

The class of virtual sequences which contain the even-indexed elements of a given sequence.

Definition

USING: sequences ;

IN: sequences.extras

TUPLE: evens < sequence-view ;

Methods

USING: accessors math sequences sequences.extras ;

M: evens length seq>> length 1 + 2/ ; inline


USING: accessors kernel math sequences sequences.extras ;

M: evens virtual@ [ 2 * ] [ seq>> ] bi* ; inline