twibint 0.3.2

Crate for arithmetic on arbitrarily large integers. Provides Python bindings as well.
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

use crate::biguint::digits_vec::Digits;

#[test]
fn new() {
    let d = Digits::new(123);

    assert_eq!(d.val, vec![3, 2, 1]);
}

#[test]
fn add() {
    let mut d = Digits::new(123);

    d.add_n_at_k(9, 0);
    assert_eq!(d.val, vec![2, 3, 1]);
}

#[test]
fn double() {
    let mut d = Digits::new(193);

    d.times_2();
    assert_eq!(d.val, vec![6, 8, 3]);

    d = Digits::new(922);

    d.times_2();
    assert_eq!(d.val, vec![4, 4, 8, 1]);
}

#[test]
fn string() {
    let d = Digits::new(1943);
    assert_eq!(String::from(&d), "1943");
}

#[test]
fn from_str() {
    let s = "123";

    let bg = Digits::from(s);

    assert_eq!(bg.val, vec![3, 2, 1]);
}