/* Another example of multithreading, this time on C++ Program to execute 3 threads at once */ #include #include using namespace std; void foo(int Z) { for (int i = 0; i < Z; i++) { cout << "Thread using function" " pointer as callable\n"; } } // Defining a callable object class thread_obj { public: void operator()(int x) { for (int i = 0; i < x; i++) cout << "Thread using function" " object as callable\n"; } }; int main() { cout << "Threads 1 and 2 and 3 " "operating independently" << endl; /* This thread will launched by using a function pointer as callable */ thread th1(foo, 3); /* This thread is launched by using the callable object defined above */ thread th2(thread_obj(), 3); // Defining a Lambda Expression auto f = [](int x) { for (int i = 0; i < x; i++) cout << "Thread using lambda" " expression as callable\n"; }; thread th3(f, 3); //Waiting for the threads to finish execution th1.join(); th2.join(); th3.join(); return 0; } /* Console output should be something like this: Threads 1 and 2 and 3 operating independently Thread using function pointer as callable Thread using lambda expression as callable Thread using function pointer as callable Thread using lambda expression as callable Thread using function object as callable Thread using lambda expression as callable Thread using function pointer as callable Thread using function object as callable Thread using function object as callable */

C++ Multithreading Example