malachite-nz 0.9.2

The bignum types Natural and Integer, with efficient algorithms partially derived from GMP and FLINT.
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
64
65
66
67
68
69
70
71
72

// 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 malachite_base::strings::string_is_subset;
use malachite_base::test_util::generators::{string_gen, string_gen_var_9};
use malachite_nz::integer::Integer;
use malachite_nz::test_util::generators::integer_gen;
use std::str::FromStr;

#[test]
fn test_serde() {
    let test = |n, out| {
        assert_eq!(
            serde_json::to_string(&Integer::from_str(n).unwrap()).unwrap(),
            out
        );
        assert_eq!(serde_json::from_str::<Integer>(out).unwrap().to_string(), n);
    };
    test("0", "\"0x0\"");
    test("100", "\"0x64\"");
    test("1000000000000", "\"0xe8d4a51000\"");
    test("4294967295", "\"0xffffffff\"");
    test("4294967296", "\"0x100000000\"");
    test("18446744073709551615", "\"0xffffffffffffffff\"");
    test("18446744073709551616", "\"0x10000000000000000\"");
    test("1000000000000000000000000", "\"0xd3c21bcecceda1000000\"");
    test(
        "340282366920938463463374607431768211455",
        "\"0xffffffffffffffffffffffffffffffff\"",
    );
    test(
        "340282366920938463463374607431768211456",
        "\"0x100000000000000000000000000000000\"",
    );
    test("-100", "\"-0x64\"");
    test("-1000000000000", "\"-0xe8d4a51000\"");
    test("-4294967295", "\"-0xffffffff\"");
    test("-4294967296", "\"-0x100000000\"");
    test("-18446744073709551615", "\"-0xffffffffffffffff\"");
    test("-18446744073709551616", "\"-0x10000000000000000\"");
    test("-1000000000000000000000000", "\"-0xd3c21bcecceda1000000\"");
    test(
        "-340282366920938463463374607431768211455",
        "\"-0xffffffffffffffffffffffffffffffff\"",
    );
    test(
        "-340282366920938463463374607431768211456",
        "\"-0x100000000000000000000000000000000\"",
    );
}

#[test]
fn serde_properties() {
    integer_gen().test_properties(|x| {
        let s = serde_json::to_string(&x).unwrap();
        assert_eq!(serde_json::from_str::<Integer>(&s).unwrap(), x);
        assert!(string_is_subset(&s, "\"-0123456789abcdefx"));
    });

    string_gen().test_properties(|s| {
        let _n: Result<Integer, _> = serde_json::from_str(&s);
    });

    string_gen_var_9().test_properties(|s| {
        let _n: Integer = serde_json::from_str(&s).unwrap();
    });
}