returning reference vector

gistfile1.cpp

#include <iostream>
#include <vector>

using namespace std;

void ints(vector<int>& tofill) {
  tofill.push_back(1);
  tofill.push_back(2);
  tofill.push_back(3);
}

int main(int argc, char** argv) {
  vector<int> stuff(); // or vector<int> stuff = vector<int>();
  int i;

  ints(stuff);

  for (i = 0; i < stuff.size(); i++) {
    cout << stuff[i] << endl;
  }
}

// prints
// 1
// 2
// 3