CxxUtils::HexString< FormatStr > Node1 CxxUtils::HexString < FormatStr > - m_text - m_actual_size - s_FormatLen - s_PlaceholderPos - s_PrefixLen - s_PostfixLen - s_MaxHexDigits + HexString() + operator std::string _view() + size() + c_str() - get_placeholder_pos()