dsalgo 0.3.10

A package for Datastructures and Algorithms.
Documentation 
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pub fn bit_mask(less_than: usize) -> usize {
    (1 << less_than) - 1
}

#[cfg(test)]

mod tests {

    use super::*;

    #[test]

    fn test() {
        assert_eq!(bit_mask(4), 0b001111);
    }
}