parallel 0.11.3

Command-line CPU load balancer for executing jobs in parallel
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/// A trait that adds the ability for numbers to find their digit count and to convert them to padded strings.
pub trait Digits {
    /// Counts the number of digits in a number. **Example:** {{0 = 0}, {1 = 1}, {10 = 2}, {100 = 3}}
    fn digits(&self) -> Self;
}

macro_rules! impl_digits_for {
    ($t:ty) => {
        impl Digits for $t {
            fn digits(&self) -> $t {
                let mut digits = if *self == 1 || *self % 10 == 0 { 1 } else { 0 };
                let mut temp = 1;
                while temp < *self {
                    digits += 1;
                    temp = (temp << 3) + (temp << 1);
                }
                digits
            }
        }
    }
}

impl_digits_for!(isize);
impl_digits_for!(i8);
impl_digits_for!(i16);
impl_digits_for!(i32);
impl_digits_for!(i64);
impl_digits_for!(usize);
impl_digits_for!(u8);
impl_digits_for!(u16);
impl_digits_for!(u32);
impl_digits_for!(u64);