// vtest build: tinyc && linux
// vtest vflags: -cc tcc -no-retry-compilation
module main

struct Counter {
mut:
    value atomic int
}

fn (mut c Counter) add_many(n int) {
    for _ in 0 .. n {
        c.value++
    }
}

fn test_tcc_atomic_postfix_is_atomic() {
    mut counter := &Counter{}
    mut threads := []thread{cap: 8}
    for _ in 0 .. 8 {
        threads << spawn counter.add_many(200_000)
    }
    threads.wait()
    assert counter.value == 1_600_000
}