// time-arithmetic.el — Instant + Duration -> Instant, then Instant - Instant
// -> Duration. The codegen routes each BinOp through the typed wrappers
// (el_instant_add_dur, el_instant_diff). Returns 1 if the elapsed span is at
// least 5 minutes, 0 otherwise. Because the two now() calls are very close
// together, the span is very nearly 5.minutes, so >= 5.minutes holds.

// `test` is reserved; using `run_test` instead.
fn run_test() -> Int {
    let later: Instant = now() + 5.minutes
    let span: Duration = later - now()
    if span >= 5.minutes {
        return 1
    } else {
        return 0
    }
}

fn main() -> Void {
    println(int_to_str(run_test()))
}