Thank you mirek for all the hard work!

I have a question. In CoWork.h, line 186, etc,

		void Do(Function&& f, Args&&... args) { co.Do([=]() { ret = f(args...); }); }

shouldn't it be something like

void Do(Function&& f, Args&&... args) { co.Do([=]() { ret = f(std::forward<Args>(args)...); }); }

for perfect forwarding to actually work?