extern mod std; fn child(c: comm::Chan<~uint>, i: uint) { comm::send(c, ~i); } fn main() { let p = comm::Port(); let ch = comm::Chan(p); let n = 100u; let mut expected = 0u; for uint::range(0u, n) |i| { task::spawn(|| child(ch, i) ); expected += i; } let mut actual = 0u; for uint::range(0u, n) |_i| { let j = comm::recv(p); actual += *j; } assert expected == actual; }