Tokenize in C++

#include<bits/stdc++.h>
using namespace std;

int main() {
    string str = "1 2 3 4 5";
    string token;

    stringstream s;
    s << str;
    // s >> token;
    while(getline(s, token, ' ')) {
        cout << token << endl;
    }

    return 0;
}