Function prime_tools::get_primes_less_than_x

pub fn get_primes_less_than_x(x: u32) -> Vec<u32>

Generates an ordered list of prime numbers less than x.

Uses the Sieve of Eratosthenes under the covers.

Examples

let x = 11;
let answer = prime_tools::get_primes_less_than_x(x);

assert_eq!(vec![2, 3, 5, 7], answer);

let x = 12;
let answer = prime_tools::get_primes_less_than_x(x);

assert_eq!(vec![2, 3, 5, 7, 11], answer);