How to return different types from a single function

Question

I have the following c code :

#include 
#include 

void *func(int a) { 
    if (a==3) {
        int a_int = 5;
        int *pt         


        

Answer 1

If you want a function that return two (or more) values, you have two possibilities:

1- Make the function void and return the values as parameters by reference &

2- Declare a struct (or class) that groups the values and make the function return a value of this struct.