From 4f0a5ee779569df6cf14de1e040cc7625dfebfe7 Mon Sep 17 00:00:00 2001
From: Morten Nobel-Joergensen <morten@nobel-joergensen.com>
Date: Wed, 1 Aug 2018 10:28:08 +0200
Subject: [PATCH] Add future

---
 README.md | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/README.md b/README.md
index 3a4e2c7..eac532c 100644
--- a/README.md
+++ b/README.md
@@ -553,4 +553,21 @@ sharedMes = "ping";
 thread t1(pingPongFn, sharedMes);  // start example with 3 concurrent threads
 thread t2(pingPongFn, "pong");
 thread t3(pingPongFn, "boing");
+```
+
+## `future` (thread support library)
+```cpp
+#include <future>         // Include future
+function<int(int)> fib =  // Create lambda function
+  [&](int i){
+    if (i <= 1){
+      return 1;
+    }
+    return fib(i-1) 
+         + fib(i-2);
+  };
+future<int> fut =         // result of async function
+  async(launch::async, fib, 4); // start async function in other thread
+// do some other work 
+cout << fut.get();        // get result of async function. Wait if needed.
 ```
\ No newline at end of file