prime_sieve.rs

#![feature(collections)]

  fn sieve_controller(limit: i32) {

    let limitn = limit + 1;
    let mut primes: Vec<i32> = Vec::new();
    let mut factors: Vec<i32> = Vec::new();
    let mut counter: Vec<i32> = Vec::new();

    for i in 2..limitn  {
      primes.push(i);
    }

    for &i in &primes {
      let mut s = i;
      while s < limitn {
        factors.push(s);
        counter.push(s);
        s += i;
      }
    }

    fn prime_sieve(primes: Vec<i32>, factors: Vec<i32>, counter: Vec<i32>) {
      let mut list1 = primes;
      let list2 = factors;
      let list3 = counter;
      for f in list3 {
        let rm = list1.position_elem(&f);
        list1.remove(rm.unwrap());
      }
      for x in list1 {
        println!("{}", x);
      }
    }

    prime_sieve(primes, factors, counter);

  }


fn main() {

  sieve_controller(10);

}