//import String;

namespace Hello {

public struct Vector {
    public float c[4];

    public Vector() {
    }

    public Vector.from_floats(float pc[4]) {
        c = pc;
    }
}

public struct Matrix {
    Vector v[4];

    public Matrix(Vector pv[4]) {
        v = pv;
    }

    public void mult(Matrix other) {
        // do something
    }
}

public class Hello : Object {

    private int x;

    public Hello(int n = 0) {
        this.x = n;
    }

    public int add(int n) {
        this.x += n;
        return this.x;
    }

}
}


int main(string[] args)
{
    var hell = new Hello.Hello(42);

    stdout.printf("Hello world %d\n", hell.add(332));

    int i = 0;
    foreach (var s in args) {
        stdout.printf("arg #%d '%s'\n", i++, s);
    }

    float c[] = { 1,2,3,4};
    var v = Hello.Vector.from_floats(c);
    stdout.printf("v(%g, %g, %g, %g)\n", v.c[0], v.c[1], v.c[2], v.c[3]);

    return 0;
}