subtree(users/wpcarro): docking briefcase at '24f5a642'

git-subtree-dir: users/wpcarro
git-subtree-mainline: 464bbcb15c
git-subtree-split: 24f5a642af
Change-Id: I6105b3762b79126b3488359c95978cadb3efa789

users/wpcarro/go/atomic-counters.go

@@ -0,0 +1,26 @@
+// Attempting to apply some of the lessons I learned here:
+// https://gobyexample.com/atomic-counters
+package main
+
+import (
+	"fmt"
+	"sync"
+	"sync/atomic"
+)
+
+func main() {
+	var count uint64
+	var wg sync.WaitGroup
+
+	for i := 0; i < 50; i += 1 {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			for j := 0; j < 1000; j += 1 {
+				atomic.AddUint64(&count, 1)
+			}
+		}()
+	}
+	wg.Wait()
+	fmt.Println("Count: ", count)
+}