Modern C++ Programming Cookbook

How to do it...

The following is a series of typical operations that use atomic types:

• Use the std::atomic class template to create atomic objects that support atomic operations, such as loading, storing, or performing arithmetic or bitwise operations:

        std::atomic<int> counter {0};        std::vector<std::thread> threads;        for(int i = 0; i < 10; ++i)        {          threads.emplace_back([&counter](){            for(int i = 0; i < 10; ++i)              ++counter;          });        }        for(auto & t : threads) t.join();        std::cout << counter << std::endl; // 100

• Use the std::atomic_flag class for an atomic Boolean type:

        std::atomic_flag lock = ATOMIC_FLAG_INIT;        int counter = 0;        std::vector<std::thread> threads;        for(int i = 0; i < 10; ++i)        {          threads.emplace_back([&](){ while(lock.test_and_set(std::memory_order_acquire)); ...