add original source

source/listing_2.1.cpp

@@ -0,0 +1,35 @@
+#include <thread>
+
+void do_something(int& i)
+{
+    ++i;
+}
+
+struct func
+{
+    int& i;
+
+    func(int& i_):i(i_){}
+
+    void operator()()
+    {
+        for(unsigned j=0;j<1000000;++j)
+        {
+            do_something(i);
+        }
+    }
+};
+
+
+void oops()
+{
+    int some_local_state=0;
+    func my_func(some_local_state);
+    std::thread my_thread(my_func);
+    my_thread.detach();
+}
+
+int main()
+{
+    oops();
+}