Method get_pos

src/test/common/ObjectContents.h:41–43

	static_cast<char>(current_val % 256) : '\0';
    }
    uint64_t get_pos() {
      return pos;
    }
    void seek_to(uint64_t _pos) {
      if (pos > _pos ||
	  (iter != parent->seeds.end() && _pos >= iter->first)) {