c++11 std::mutex compiler error in Visual Studio 2012

Question

This a quest about deadlock in C++11 standard.

In the sec3.2.4 of C++ Concurrency in Action, there is an example for preventing multithreads from deadlock. For guys

Answer 1

You are making copy of my_account and your_account to std::thread, but std::mutex is neither copyable nor movable.

Try pass by reference:

 std::thread t1(transfer, std::ref(my_account), std::ref(your_account));