C++ Pointers to void?

Question

i want to access void function with pointer.
like this

#include <iostream>
using namespace std;
void yay()
{cout << "WORKS!\n";}
int main()
{
void *acc;
acc = yay(); //now i want yay is called and produce ouput
return 0;
}

but of course its occur an error. how to do that?

Answer 1

#include <iostream>

void yay()
{
std::cout << "WORKS!\n";
}

int main()
{
void (*acc)(void);
acc = yay;
return 0;
}

Further reading: Function pointers.

Answer 2

https://www.sololearn.com/Discuss/294730/?ref=app

Answer 3

std:: is the Standard call for c++ output. So if you use “using namespace std;” you wouldn’t have to use std::cout, you would just say cout << “hi” ;

Answer 4

and can you explain me, what is the mean std:: ?