Function get_bit_width_from

pub fn get_bit_width_from(states: u64) -> u64

Returns the minimum bit width needed to represents n states with zero inclusive. Panics otherwise. Note: To represent the number n, you need to represent n+1 states.

For example, get_bit_width_from(3) == 2 // 3 states requires a minimum of 2 bits. get_bit_width_from(4) == 2 // 4 states can be represented with exactly 2 bits. get_bit_width_from(5) == 3 // 5 states requires a minimum of 3 bits.