refactor 200 iterator

lib/primes/src/lib.rs

@@ -6,12 +6,13 @@ use std::fs::File;
 use std::hash::Hash;
 use std::io::Write;
 use std::slice::Iter;
+use std::vec::IntoIter;
 
 use num::FromPrimitive;
 use num::Num;
 use num::ToPrimitive;
 
-#[derive(Clone)]
+#[derive(Clone, Debug)]
 pub struct Primes<T> {
     vector: Vec<T>,
     set: HashSet<T>,
@@ -110,6 +111,10 @@ where
     pub fn into_vec(self) -> Vec<T> {
         self.vector
     }
+
+    pub fn to_cloned_iter(&self) -> IntoIter<T> {
+        self.vector.clone().into_iter()
+    }
 }
 
 #[cfg(test)]