pub struct Config {
    pub filename1: String,
    pub filename2: String,
}

impl Config {
    pub fn new(args: &[String]) -> Config {
	if args.len() < 3 {
	    panic!("pas assez d'arguments");
	}
	let filename1 = args[1].clone();
	let filename2 = args[2].clone();
	
	Config { filename1, filename2 }
    }
}