C++ Reactive Programming

Passing arguments into a thread

So, we have figured out how to launch and wait over a thread. Now, let's see how to pass arguments into a thread initialization function. Let's look at an example to find the factorial of a number:

class Factorial 
{ 
private: 
    long long myFact; 
     
public: 
    Factorial() : myFact(1) 
    { 
    } 
     
    void operator() (int number) 
    { 
        myFact = 1; 
        for (int i = 1; i <= number; ++i) 
        { 
            myFact *= i; 
        } 
        std::cout << "Factorial of " << number << " is " << myFact; 
    } 
}; 
 
int main() 
{ 
    Factorial fact; 
     
    std::thread t1(fact, 10); 
     
    t1.join(); 
} 
 

From this example, it is clear that passing arguments into a thread function or a thread callable object can be achieved by passing additional arguments into an std::thread() declaration. One thing we must keep ...