In 0.7.0, WyRand can generate values below range when using generate_range.

[cyeganeh01248]

Using this PoC, you can see that the expected range would be 50-100. However, when run using version 0.7.0, this sometimes generates values of 49. It doesn't matter what the lower bound is. It does this for i8, i16, i32, i64, and isize.

Package versions 0.6.0 && 0.6.1 do not produce this bug.

use nanorand::{Rng, WyRand};

fn main() {
    let mut test_seed = 0;
    let mi = 50;
    let ma = 100;
    'outer: loop {
        let mut rng = WyRand::new_seed(test_seed);
        for j in 0..128 {
            let v = rng.generate_range(mi..ma);
            if v < mi || v >= ma {
                println!("{} {} {}", test_seed, j, v);
                // break 'outer;
            }
        }
        test_seed += 1;
    }
}

[cyeganeh01248]

Just noticed issue #45, Closing as duplicate.