how to use std::function<void(void)> to call a method

Question

I am trying to use an method that takes

  std::function<void()> 

as an input. Unfortunately I have never used this data type before and I am having problems understanding it. All I need to do it say when it is called execute a method, for example:

   std::function<void()> doThing = object.isMethod();

Although this syntax is obviously not correct. Can someone please explain this to me?

Answer 1

You could bind the object to the method

std::function<void()> doThing = std::bind(&type::isMethod, &object);

or use a lambda

std::function<void()> doThing = [&]{object.isMethod();};