Call function inside a lambda passed to a thread

Question

I\'m trying to create a object that can be given a function and its parameters to his constructor. This class will then call the given function inside a lambda that is inste

Answer 1

As said in the comments, this compile fine with gcc-4.9 (and above), but if you need to use gcc-4.8 you can add parameters to the lambda in the worker constructor and pass the arguments via the std::thread constructor:

class worker {
public:
    template <class Fn, class... Args>
    explicit worker(Fn f, Args ...args) {
        t = std::thread([f](Args ...largs) -> void {
                f(largs...);
        }, std::move(args)...);
    }
private:
    std::thread t;
};

This will also create copy of the arguments in the lambda arguments, unlike the capture by reference you were using [&] that was probably incorrect in this case (see @Yakk comment).