gistfile1.txt

use std;

iface vector {
    fn [](i: uint) -> float;
    fn len() -> uint;
}

impl vector_utils for vector {
    fn print() {
        std::io::print("[ ");
        self.each() {|x|
            std::io::print(float::to_str(x, 10u) + " ");
        };
        std::io::println("]");
    }   

    fn each(f: fn(float)) {
        uint::range(0u, self.len()) {|i| 
            f(*@self[i])
        }
    }
}