XML_ERROR_CANT_CHANGE_FEATURE_ONCE_PARSING
return XML_ERROR_CANT_CHANGE_FEATURE_ONCE_PARSING;
case XML_ERROR_CANT_CHANGE_FEATURE_ONCE_PARSING:
!= XML_ERROR_CANT_CHANGE_FEATURE_ONCE_PARSING)
!= XML_ERROR_CANT_CHANGE_FEATURE_ONCE_PARSING)