how to split a c++ string by the spaces code example

Example 1: cpp split string by space

std::vector<std::string> string_split(const std::string& str) {
	std::vector<std::string> result;
	std::istringstream iss(str);
	for (std::string s; iss >> s; )
		result.push_back(s);
	return result;
}

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);