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use bitops::*; pub fn fls<T: Bitops>(x: T) -> u8 { (msb(x) + 1) as u8 } pub fn msb<T: Bitops>(x: T) -> i8 { let bits = bit_length::<T>() as i8; if x != T::zero() { (bits -1i8 - (x.leading_zeros() as i8)) } else { -1i8 } }