malachite-base 0.14.0

A collection of utilities, including new arithmetic traits and iterators that generate all values of a type.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63

// Copyright © 2026 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 <https://www.gnu.org/licenses/>.

use core::str::FromStr;
use malachite_base::num::conversion::traits::ExactFrom;
use malachite_base::test_util::generators::unsigned_vector_gen;
use malachite_base::unsigned_vector::UnsignedVector;
use malachite_base::vector::Vector;

#[test]
fn test_into_iterator() {
    let v = UnsignedVector::<u8>::from_str("(1, 2, 3)").unwrap();
    assert_eq!(
        v.clone()
            .into_iter()
            .map(|x| x.to_string())
            .collect::<Vec<_>>(),
        ["1", "2", "3"]
    );
    let mut strings = Vec::new();
    for x in &v {
        strings.push(x.to_string());
    }
    assert_eq!(strings, ["1", "2", "3"]);
    let mut w = v;
    for x in &mut w {
        *x += 1;
    }
    assert_eq!(w.to_string(), "(2, 3, 4)");
    assert_eq!(UnsignedVector::<u8>::zero(0).into_iter().count(), 0);
}

#[test]
fn into_iterator_properties() {
    unsigned_vector_gen().test_properties(|v| {
        // Iterating by value, by reference, and over the elements give the same elements in the
        // same order, as many as the dimension.
        let xs: Vec<u64> = v.clone().into_iter().collect();
        assert_eq!(xs, v.elements);
        assert!(IntoIterator::into_iter(&v).eq(v.elements.iter()));
        assert_eq!(
            IntoIterator::into_iter(&v).count(),
            usize::exact_from(v.dimension())
        );
        // Collecting the elements back gives the same vector.
        assert_eq!(v.clone().into_iter().collect::<UnsignedVector<u64>>(), v);
        // Changing the elements through `&mut` is changing them in `elements`.
        let mut w = v.clone();
        for x in &mut w {
            *x += 1;
        }
        let mut w_alt = v.clone();
        for x in &mut w_alt.elements {
            *x += 1;
        }
        assert_eq!(w, w_alt);
    });
}