Question for Rust IRC

array.rs

/*
 * Question: should this be the correct way to initialize a new vector
 * with a set capacity? Seems al little verbose.
 */
fn main() -> () {
  let mut a : ~[int] = ~[];
  vec::reserve(&mut a, 20);
}

So to make this complete for anyone else who looks, Jeaye from the Mozilla Rust IRC suggested using vec::with_capacity such that:

fn main() -> () {
  let a : ~[int] = vec::with_capacity(20);
}