A clean way to store a function and its (arbitrary-type, arbitrary-number) arguments

Question

For a library, I\'d like a function to accept another function and its arguments, then store them all for calling later. The arguments must allow for any mixture of types, b

Answer 1

If you want/are able to make use of the C++11 future library you can use std::async

#include 

auto caller = std::async(myFunc1, 123, 45.6); // Creates a future object.

caller.get(); // Waits for the function to get executed and returns result.

To force lazy evaluation use:

auto caller = std::async(std::launch::deferred, myFunc1, 123, 45.6);

Also this has the advantage that the function call might be executed on a different thread which makes use of multicore hardware. However this may not be suitable in every case.