package main
import (
"fmt"
"sync"
"sync/atomic"
)
func main() {
var ops uint64
var wg sync.WaitGroup
for i := 0; i < 50; i++ {
wg.Add(1)
go func() {
for c := 0; c < 1000; c++ {
atomic.AddUint64(&ops, 1)
}
wg.Done()
}()
}
wg.Wait()
fmt.Println("ops:", ops)
}$ go run atomic-counters.go
ops: 50000