malachite-base 0.14.0

A collection of utilities, including new arithmetic traits and iterators that generate all values of a type.
Documentation 
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// 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::arithmetic::traits::Height;
use malachite_base::num::logic::traits::SignificantBits;
use malachite_base::test_util::generators::unsigned_vector_gen;
use malachite_base::unsigned_vector::UnsignedVector;
use malachite_base::vector::Vector;

#[test]
fn test_max_bits() {
    let test = |s, out| {
        let v = UnsignedVector::<u8>::from_str(s).unwrap();
        assert_eq!(v.max_bits(), out);
        assert_eq!(v.height_significant_bits(), out.0);
    };
    test("()", (0, false));
    test("(0, 0)", (0, false));
    test("(1, 5, 2)", (3, false));
    test("(255, 128)", (8, false));
}

#[test]
fn max_bits_properties() {
    unsigned_vector_gen().test_properties(|v| {
        let (bits, negative) = v.max_bits();
        // The count is the number of significant bits of the height, and the flag says whether any
        // element is negative.
        assert_eq!(v.height_significant_bits(), bits);
        assert_eq!(v.to_height().significant_bits(), bits);
        assert!(!negative);
        // The count is 0 exactly when every element is 0.
        assert_eq!(bits == 0, v.elements.iter().all(|&x| x == 0));
    });
}