// -*- rust -*- type point = tup(int, int); fn f(point p, int x, int y) { assert (p._0 == x); assert (p._1 == y); } fn main() { let point p = tup(10, 20); assert (p._0 == 10); assert (p._1 == 20); let point p2 = p; let int x = p2._0; assert (x == 10); f(p, 10, 20); f(p2, 10, 20); }