What are some examples of function pointers in C++?

What are some examples of function pointers in C++?

Function pointers in C++ allow you to store the address of a function and call it later. Here are a few examples.

Can you show me a simple example of how to declare and use a function pointer?

Sure! Here's a simple example:

#include <iostream>
using namespace std;

void greet() {
    cout << "Hello, World!" << endl;
}

int main() {
    void (*funcPtr)() = &greet; // Declare a function pointer
    funcPtr(); // Call the function using the pointer
    return 0;
}

What about passing function pointers as arguments?

You can pass function pointers as arguments to other functions. Here's an example:

#include <iostream>
using namespace std;

void execute(void (*func)()) {
    func(); // Call the function passed as an argument
}

void greet() {
    cout << "Hello, World!" << endl;
}

int main() {
    execute(greet); // Pass the function pointer
    return 0;
}