1 ! Copyright (C) 2009 Joe Groff.
2 ! See https://factorcode.org/license.txt for BSD license.
3 USING: arrays kernel make math sequences sequences.product tools.test ;
5 { { { 0 "a" } { 1 "a" } { 2 "a" } { 0 "b" } { 1 "b" } { 2 "b" } } }
6 [ { { 0 1 2 } { "a" "b" } } <product-sequence> >array ] unit-test
8 { { "a" "aa" "aaa" "b" "bb" "bbb" } }
9 [ { { 1 2 3 } { "a" "b" } } [ first2 <repetition> concat ] product-map ] unit-test
13 { 0 "a" t } { 1 "a" t } { 2 "a" t } { 0 "b" t } { 1 "b" t } { 2 "b" t }
14 { 0 "a" f } { 1 "a" f } { 2 "a" f } { 0 "b" f } { 1 "b" f } { 2 "b" f }
16 } [ { { 0 1 2 } { "a" "b" } { t f } } [ ] product-map ] unit-test
20 { { "a" "b" "c" } { "1" "2" } }
21 [ [ % ] each ] product-each
25 { { } } [ { { } { 1 } } [ ] product-map ] unit-test
26 { } [ { { } { 1 } } [ drop ] product-each ] unit-test
29 { } [ sum zero? ] product-find
33 { f } [ sum zero? ] product-find
37 { { 1 2 3 } { 4 5 6 } { 7 8 9 } }
38 [ [ even? ] all? ] product-find
42 { { 1 2 3 } { 4 5 6 } { 7 8 9 } }
43 [ [ 10 > ] all? ] product-find