// Copyright © 2024 Mikhail Hogrefe
//
// This file is part of Malachite.
//
// Malachite is free software: you can redistribute it and/or modify it under the terms of the GNU
// Lesser General Public License (LGPL) as published by the Free Software Foundation; either version
// 3 of the License, or (at your option) any later version. See .
use crate::extra_variadic::{
exhaustive_triples_from_single, exhaustive_triples_xxy, exhaustive_triples_xxy_custom_output,
exhaustive_triples_xyx, exhaustive_triples_xyx_custom_output,
};
use crate::get_sample_output_types;
use itertools::Itertools;
use malachite_base::bools::exhaustive::exhaustive_bools;
use malachite_base::nevers::nevers;
use malachite_base::num::exhaustive::exhaustive_unsigneds;
use malachite_base::orderings::exhaustive::exhaustive_orderings;
use malachite_base::tuples::exhaustive::exhaustive_pairs;
use std::cmp::Ordering::*;
use std::fmt::Debug;
use std::iter::once;
#[allow(clippy::needless_pass_by_value)]
fn exhaustive_triples_xxy_helper<
X: Clone + Debug + Eq,
I: Clone + Iterator- ,
Y: Clone + Debug + Eq,
J: Clone + Iterator
- ,
>(
xs: I,
ys: J,
out_len: usize,
out: &[(X, X, Y)],
) {
let ts = exhaustive_triples_xxy(xs.clone(), ys.clone());
assert_eq!(ts.clone().take(20).collect_vec(), out);
assert_eq!(ts.count(), out_len);
let output_types = get_sample_output_types(3);
let ts = exhaustive_triples_xxy_custom_output(
xs.clone(),
ys.clone(),
output_types[0][0],
output_types[0][1],
output_types[0][2],
);
let ts_prefix = ts.clone().take(20).collect_vec();
assert_eq!(ts_prefix.as_slice(), out);
assert_eq!(ts.count(), out_len);
for alt_output_types in &output_types[1..] {
let ts = exhaustive_triples_xxy_custom_output(
xs.clone(),
ys.clone(),
alt_output_types[0],
alt_output_types[1],
alt_output_types[2],
);
ts.clone().take(20).for_each(drop);
assert_eq!(ts.count(), out_len);
}
}
#[test]
fn test_exhaustive_triples_xxy() {
exhaustive_triples_xxy_helper(nevers(), nevers(), 0, &[]);
exhaustive_triples_xxy_helper(nevers(), 0..4, 0, &[]);
exhaustive_triples_xxy_helper(once('a'), once(1), 1, &[('a', 'a', 1)]);
exhaustive_triples_xxy_helper(
once('a'),
0..4,
4,
&[('a', 'a', 0), ('a', 'a', 1), ('a', 'a', 2), ('a', 'a', 3)],
);
exhaustive_triples_xxy_helper(
exhaustive_unsigneds::(),
'a'..'e',
1 << 18,
&[
(0, 0, 'a'),
(0, 0, 'b'),
(0, 1, 'a'),
(0, 1, 'b'),
(1, 0, 'a'),
(1, 0, 'b'),
(1, 1, 'a'),
(1, 1, 'b'),
(0, 0, 'c'),
(0, 0, 'd'),
(0, 1, 'c'),
(0, 1, 'd'),
(1, 0, 'c'),
(1, 0, 'd'),
(1, 1, 'c'),
(1, 1, 'd'),
(0, 2, 'a'),
(0, 2, 'b'),
(0, 3, 'a'),
(0, 3, 'b'),
],
);
exhaustive_triples_xxy_helper(
exhaustive_bools(),
0..4,
16,
&[
(false, false, 0),
(false, false, 1),
(false, true, 0),
(false, true, 1),
(true, false, 0),
(true, false, 1),
(true, true, 0),
(true, true, 1),
(false, false, 2),
(false, false, 3),
(false, true, 2),
(false, true, 3),
(true, false, 2),
(true, false, 3),
(true, true, 2),
(true, true, 3),
],
);
exhaustive_triples_xxy_helper(
'a'..'f',
0..3,
75,
&[
('a', 'a', 0),
('a', 'a', 1),
('a', 'b', 0),
('a', 'b', 1),
('b', 'a', 0),
('b', 'a', 1),
('b', 'b', 0),
('b', 'b', 1),
('a', 'a', 2),
('a', 'b', 2),
('b', 'a', 2),
('b', 'b', 2),
('a', 'c', 0),
('a', 'c', 1),
('a', 'd', 0),
('a', 'd', 1),
('b', 'c', 0),
('b', 'c', 1),
('b', 'd', 0),
('b', 'd', 1),
],
);
exhaustive_triples_xxy_helper(
['a', 'b', 'c'].iter().copied(),
exhaustive_orderings(),
27,
&[
('a', 'a', Equal),
('a', 'a', Less),
('a', 'b', Equal),
('a', 'b', Less),
('b', 'a', Equal),
('b', 'a', Less),
('b', 'b', Equal),
('b', 'b', Less),
('a', 'a', Greater),
('a', 'b', Greater),
('b', 'a', Greater),
('b', 'b', Greater),
('a', 'c', Equal),
('a', 'c', Less),
('b', 'c', Equal),
('b', 'c', Less),
('a', 'c', Greater),
('b', 'c', Greater),
('c', 'a', Equal),
('c', 'a', Less),
],
);
exhaustive_triples_xxy_helper(
exhaustive_pairs(exhaustive_orderings(), exhaustive_bools()),
exhaustive_triples_from_single([Less, Greater].iter().copied()),
288,
&[
((Equal, false), (Equal, false), (Less, Less, Less)),
((Equal, false), (Equal, false), (Less, Less, Greater)),
((Equal, false), (Equal, true), (Less, Less, Less)),
((Equal, false), (Equal, true), (Less, Less, Greater)),
((Equal, true), (Equal, false), (Less, Less, Less)),
((Equal, true), (Equal, false), (Less, Less, Greater)),
((Equal, true), (Equal, true), (Less, Less, Less)),
((Equal, true), (Equal, true), (Less, Less, Greater)),
((Equal, false), (Equal, false), (Less, Greater, Less)),
((Equal, false), (Equal, false), (Less, Greater, Greater)),
((Equal, false), (Equal, true), (Less, Greater, Less)),
((Equal, false), (Equal, true), (Less, Greater, Greater)),
((Equal, true), (Equal, false), (Less, Greater, Less)),
((Equal, true), (Equal, false), (Less, Greater, Greater)),
((Equal, true), (Equal, true), (Less, Greater, Less)),
((Equal, true), (Equal, true), (Less, Greater, Greater)),
((Equal, false), (Less, false), (Less, Less, Less)),
((Equal, false), (Less, false), (Less, Less, Greater)),
((Equal, false), (Less, true), (Less, Less, Less)),
((Equal, false), (Less, true), (Less, Less, Greater)),
],
);
}
#[allow(clippy::needless_pass_by_value)]
fn exhaustive_triples_xyx_helper<
X: Clone + Debug + Eq,
I: Clone + Iterator
- ,
Y: Clone + Debug + Eq,
J: Clone + Iterator
- ,
>(
xs: I,
ys: J,
out_len: usize,
out: &[(X, Y, X)],
) {
let ts = exhaustive_triples_xyx(xs.clone(), ys.clone());
assert_eq!(ts.clone().take(20).collect_vec(), out);
assert_eq!(ts.count(), out_len);
let output_types = get_sample_output_types(3);
let ts = exhaustive_triples_xyx_custom_output(
xs.clone(),
ys.clone(),
output_types[0][0],
output_types[0][1],
output_types[0][2],
);
let ts_prefix = ts.clone().take(20).collect_vec();
assert_eq!(ts_prefix.as_slice(), out);
assert_eq!(ts.count(), out_len);
for alt_output_types in &output_types[1..] {
let ts = exhaustive_triples_xyx_custom_output(
xs.clone(),
ys.clone(),
alt_output_types[0],
alt_output_types[1],
alt_output_types[2],
);
ts.clone().take(20).for_each(drop);
assert_eq!(ts.count(), out_len);
}
}
#[test]
fn test_exhaustive_triples_xyx() {
exhaustive_triples_xyx_helper(nevers(), nevers(), 0, &[]);
exhaustive_triples_xyx_helper(nevers(), 0..4, 0, &[]);
exhaustive_triples_xyx_helper(once('a'), once(1), 1, &[('a', 1, 'a')]);
exhaustive_triples_xyx_helper(
once('a'),
0..4,
4,
&[('a', 0, 'a'), ('a', 1, 'a'), ('a', 2, 'a'), ('a', 3, 'a')],
);
exhaustive_triples_xyx_helper(
exhaustive_unsigneds::(),
'a'..'e',
1 << 18,
&[
(0, 'a', 0),
(0, 'a', 1),
(0, 'b', 0),
(0, 'b', 1),
(1, 'a', 0),
(1, 'a', 1),
(1, 'b', 0),
(1, 'b', 1),
(0, 'a', 2),
(0, 'a', 3),
(0, 'b', 2),
(0, 'b', 3),
(1, 'a', 2),
(1, 'a', 3),
(1, 'b', 2),
(1, 'b', 3),
(0, 'c', 0),
(0, 'c', 1),
(0, 'd', 0),
(0, 'd', 1),
],
);
exhaustive_triples_xyx_helper(
exhaustive_bools(),
0..4,
16,
&[
(false, 0, false),
(false, 0, true),
(false, 1, false),
(false, 1, true),
(true, 0, false),
(true, 0, true),
(true, 1, false),
(true, 1, true),
(false, 2, false),
(false, 2, true),
(false, 3, false),
(false, 3, true),
(true, 2, false),
(true, 2, true),
(true, 3, false),
(true, 3, true),
],
);
exhaustive_triples_xyx_helper(
'a'..'f',
0..3,
75,
&[
('a', 0, 'a'),
('a', 0, 'b'),
('a', 1, 'a'),
('a', 1, 'b'),
('b', 0, 'a'),
('b', 0, 'b'),
('b', 1, 'a'),
('b', 1, 'b'),
('a', 0, 'c'),
('a', 0, 'd'),
('a', 1, 'c'),
('a', 1, 'd'),
('b', 0, 'c'),
('b', 0, 'd'),
('b', 1, 'c'),
('b', 1, 'd'),
('a', 2, 'a'),
('a', 2, 'b'),
('b', 2, 'a'),
('b', 2, 'b'),
],
);
exhaustive_triples_xyx_helper(
['a', 'b', 'c'].iter().copied(),
exhaustive_orderings(),
27,
&[
('a', Equal, 'a'),
('a', Equal, 'b'),
('a', Less, 'a'),
('a', Less, 'b'),
('b', Equal, 'a'),
('b', Equal, 'b'),
('b', Less, 'a'),
('b', Less, 'b'),
('a', Equal, 'c'),
('a', Less, 'c'),
('b', Equal, 'c'),
('b', Less, 'c'),
('a', Greater, 'a'),
('a', Greater, 'b'),
('b', Greater, 'a'),
('b', Greater, 'b'),
('a', Greater, 'c'),
('b', Greater, 'c'),
('c', Equal, 'a'),
('c', Equal, 'b'),
],
);
exhaustive_triples_xyx_helper(
exhaustive_pairs(exhaustive_orderings(), exhaustive_bools()),
exhaustive_triples_from_single([Less, Greater].iter().copied()),
288,
&[
((Equal, false), (Less, Less, Less), (Equal, false)),
((Equal, false), (Less, Less, Less), (Equal, true)),
((Equal, false), (Less, Less, Greater), (Equal, false)),
((Equal, false), (Less, Less, Greater), (Equal, true)),
((Equal, true), (Less, Less, Less), (Equal, false)),
((Equal, true), (Less, Less, Less), (Equal, true)),
((Equal, true), (Less, Less, Greater), (Equal, false)),
((Equal, true), (Less, Less, Greater), (Equal, true)),
((Equal, false), (Less, Less, Less), (Less, false)),
((Equal, false), (Less, Less, Less), (Less, true)),
((Equal, false), (Less, Less, Greater), (Less, false)),
((Equal, false), (Less, Less, Greater), (Less, true)),
((Equal, true), (Less, Less, Less), (Less, false)),
((Equal, true), (Less, Less, Less), (Less, true)),
((Equal, true), (Less, Less, Greater), (Less, false)),
((Equal, true), (Less, Less, Greater), (Less, true)),
((Equal, false), (Less, Greater, Less), (Equal, false)),
((Equal, false), (Less, Greater, Less), (Equal, true)),
((Equal, false), (Less, Greater, Greater), (Equal, false)),
((Equal, false), (Less, Greater, Greater), (Equal, true)),
],
);
}