get a text and split it by spaces in c++ code example

Example 1: how to make string get spaces c++

string s;
getline(cin,s);

Example 2: c++ split string by several space

std::string s = "split on    whitespace   "; 
std::vector<std::string> result; 
std::istringstream iss(s); 
for(std::string s; iss >> s; ) 
    result.push_back(s);