why is this giving me 'no output'?

Question

#include <iostream>
#include <vector>
#include <iterator>
#include <set>
#include <algorithm>

namespace VECTOR1{

// going to figure out this hiding information stuff :/

class Vector1{
public:

Vector1(){

};
~Vector1(){ std::cout<<"vector 1 destroyed.";};

enum vect{
x,y,z,w
};

std::vector<int> getV(){
return m_v;
};

private:

//put container in private visibility

std::vector<int> m_v;

};

}

int main() {

using namespace VECTOR1;

Vector1 v1;

std::vector<int> vect1;
vect1=v1.getV();

vect1[0]=v1.x;
vect1[1]=v1.y;
vect1[2]=v1.z;
vect1[3]=v1.w;

std::cout<<"hello World!";
return 0;
}

Answer 1

You are getting an exception trying to access vect1[0] as vect1 has no elements. Either allocate 4 elements initially or add each one individually. For more info, check this out:
https://mobile.codeguru.com/cpp/cpp/cpp_mfc/stl/article.php/c4027/C-Tutorial-A-Beginners-Guide-to-stdvector-Part-1.htm

Answer 2

I've only used vector once and it couldn't do what I need so I did something else. I'd try:
vect1.push_back(v1.x);

Answer 3

so if I added arguments to getV() to initialize the enum values... would that work I wonder?