this->OnClick([](){ std::cout<<"Don't touch me!"<<std::endl; });

vector<int> v = {50, -10, 20, -30};
// sort by absolute value:
  std::sort(v.begin(), v.end(), [](int a, int b) { return abs(a)<abs(b); });

std::sort(v.begin(), v.end(), [](auto a, auto b) { return abs(a)<abs(b); });

typedef struct _Controller{
   const char *test_name;
   std::function<TestScene*()> callback;
} Controller;

Controller g_aTestNames[] = {
   { "ActionManager", [](){return new ActionManagerTestScene(); } },
   { "Actions - Basic", [](){ return new ActionsTestScene(); } },
   { "Actions - Ease", [](){return new ActionsEaseTestScene();} },
   { "Actions - Progress", [](){return new ProgressActionsTestScene(); } },
          { "Allocator - Basic", [](){return new AllocatorTestNS::AllocatorTestScene(); } },
          { "Audio - CocosDenshion", []() { return new CocosDenshionTestScene(); } } };

listener1->onTouchBegan = [](Touch* touch, Event* event){}

auto getCounter = [](int initialValue) {
     return [initialValue]() mutable {
         return initialValue--;
     };
};

auto c = getCounter(5);

while (c()) {
     std::cout << "Hello lambda" << std::endl;
}

class Counter {
     int m_state;
public:
     Counter(int initialValue) : m_state(initialValue) {}
     int operator()() {
         return m_state--;
     }
};

Counter getCounter(int initialValue) {
     return Counter(initialValue);
}

Counter c = getCounter(5);

while (c()) {  
      std::cout << "Hello lambda" << std::endl;  
}  

int result = 0;
sequencer->addTask( [&result, this]() {
     result = doSomething();
});
sequencer->addTask( [&result, this]() {
     if (result) {
         // everything is ok, we can process result
     }
});