Method resize_with

src/arrayvec.rs:808–819

(
    &mut self, new_len: usize, mut f: F,
  )

  /// ```
  #[inline]
  pub fn resize_with<F: FnMut() -> A::Item>(
    &mut self, new_len: usize, mut f: F,
  ) {
    match new_len.checked_sub(self.len as usize) {
      None => self.truncate(new_len),
      Some(new_elements) => {
        for _ in 0..new_elements {
          self.push(f());
        }
      }
    }
  }

  /// Walk the vec and keep only the elements that pass the predicate given.
  ///