Function push

native/thirdpart/flatbuffers/flatbuffers.h:1030–1032

  uint8_t *data_at(size_t offset) const { return buf_ + reserved_ - offset; }

  void push(const uint8_t *bytes, size_t num) {
    if (num > 0) { memcpy(make_space(num), bytes, num); }
  }

  // Specialized version of push() that avoids memcpy call for small data.
  template<typename T> void push_small(const T &little_endian_t) {