3nested-map ( seq1 seq2 seq3 quot -- seq )

Vocabulary

sequences.extras

Inputs

seq1	a sequence
seq2	a sequence
seq3	a sequence
quot	a quotation

Outputs

seq	a sequence

Word description

Applies quotation to all triples of elements from seq1, seq2 and seq3 in turn, yielding new elements which are collected into a new sequence having the same class as seq1. Order is the same as a nested for loop.

Definition

USING: kernel ;

IN: sequences.extras

: 3nested-map ( seq1 seq2 seq3 quot -- seq )
    reach 3nested-map-as ; inline