56     std::string result;  in Join()  local
58         result += s;  in Join()
59         result += sep;  in Join()
61     if (result.size() > sep.size()) {  in Join()
62         result.resize(result.size() - sep.size());  in Join()
64     return result;  in Join()
69     std::vector<std::string> result;  in Split()  local
71         return result;  in Split()
78             result.push_back(str.substr(start, pos - start));  in Split()
82             result.push_back(str.substr(start));  in Split()
86     return result;  in Split()