puti @= fn(i: int) int {
	 #C("printf(\"%ld\\n\", i)");
	 i
};

dbl @= fn(x: &[3]int) {
    (*x)[0] = (*x)[0] * 2;
    (*x)[1] = (*x)[1] * 2;
    (*x)[2] = (*x)[2] * 2;
};

main @= fn() {
     a : [3]int;
     a[0] = 1;
     dbl(&a);
     puti(a[0]);
};