Function Join

tensorflow/lite/testing/join.h:43–53

// Join a list of data with fixed precision separated by delimiter.
template <typename T>
string Join(T* data, size_t len, const string& delimiter) {
  if (len == 0 || data == nullptr) {
    return "";
  }
  std::stringstream result;
  result << std::setprecision(9) << data[0];
  for (int i = 1; i < len; i++) {
    result << std::setprecision(9) << delimiter << data[i];
  }
  return result.str();
}

// Join a list of uint8 data separated by a delimiter. Cast data to int before
// placing it in the string to prevent values from being treated like chars.