Method emplace_back

grape/utils/string_view_vector.h:42–47

  }

  void emplace_back(const nonstd::string_view& val) {
    size_t old_size = buffer_.size();
    buffer_.resize(old_size + val.size());
    memcpy(&buffer_[old_size], val.data(), val.size());
    offsets_.push_back(buffer_.size());
  }

  size_t size() const {
    assert(offsets_.size() > 0);