c++字符串拆分

static void SplitString(const string& data, const string& delim,
                  std::vector<string>* result) {
  std::string::size_type pos;
  const int size = data.size();

  for(int index = 0; index < size; ++index) {
    pos = data.find(delim, index);
    if (std::string::npos != pos &&
        pos < size) {
      result->emplace_back(data.substr(idx, pos - index));
      index = pos + delim.size()-1;
    } else {   // 最后一个element
      result->emplace_back(data.substr(index));
    }
  }19 }