What are some alternatives to function pointers in C++?

What are some alternatives to function pointers in C++?

In C++, you can use functors, lambda expressions, and std::function as alternatives to function pointers.

Can you explain what a functor is?

A functor is an object that can be called as if it were a function. It typically overloads the operator() to achieve this.

How do lambda expressions work in C++?

Lambda expressions allow you to define anonymous functions directly in your code, making it easier to write inline callbacks.

What is std::function and when should I use it?

std::function is a versatile wrapper for any callable target, including functions, functors, and lambdas, providing type safety.