gistfile1.cpp

void test6() {
  int value = 1;
  function<void()> f = [&value]() { value += 1; };
  cout << value << endl;  // 1
  f();
  cout << value << endl;  // 2
  f();
  cout << value << endl;  // 3

  class TestLambda {
    public:
      int value = 10;
      void Increase() {
        function<void()> g = [this]() { this->value += 10; };
        cout << value << endl;  // 10
        g();
        cout << value << endl;  // 20
        g();
        cout << value << endl;  // 30
      }
  };

  TestLambda test_lambda;
  test_lambda.Increase();
}