Question

How to return reference from a function in C++

Answer 1

#include <iostream>

int globaln = 33;

int& ReturnReference() {
    return globaln;
}
  
int main()
{
    int n = 12;
    int *p = &n;
  
    std::cout << *p << " " << n << " " << globaln << "\n";
  
    p = &ReturnReference();
  
    std::cout << *p << " " << n << " " << globaln << "\n";
    
    return 0;
}
     
     
     
     
/*
run:
   
12 12 33
33 12 33
      
*/

 

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