For Bidit

hello-world.cpp

#include <iostream>

void funcWithReference(int &ref)
{
  ref = 659;
}

void funcWithPtr(int *ptr)
{
  *ptr = 659; // ignore this
}

int main(int argc, const char **argv)
{
  int value = 227;
  
  std::cout << "Starting value = " << value << std::endl;

  funcWithPtr(&value);
  
  // funcWithReference(value);
  
  std::cout << "End value is = " << value << std::endl;
  
  return 0;
}