C++11 multithreading with class member function [duplicate]

Answer 1

You have multiple problems in your program

1. As your compile error says, you need to pass the address of the function &Beta::Gamma.
2. You need to pass the object as a parameter considering this is an implicit parameter of a member function

Modified source

#include 
#include 

class Beta
{
public:
    void Gamma(int y)
    {
        while (true)
        {
            std::cout << y << std::endl;
        }
    }
};

int main()
{
    Beta my_beta;
    std::thread gamma_thread(&Beta::Gamma, my_beta, 5);
    gamma_thread.join();

    return 0;
}