Function WriteOffset

native/thirdpart/flatbuffers/flexbuffers.h:1375–1379

  }

  void WriteOffset(uint64_t o, uint8_t byte_width) {
    auto reloff = buf_.size() - o;
    FLATBUFFERS_ASSERT(byte_width == 8 || reloff < 1ULL << (byte_width * 8));
    Write(reloff, byte_width);
  }

  template<typename T> void PushIndirect(T val, Type type, BitWidth bit_width) {
    auto byte_width = Align(bit_width);