The QDict class is a template class that provides a dictionary based on char* keys. ... QDict  ( const QDict<type> & dict )  . ... void  insert  ( const char * key, const type * item )  . void  replace  ( const char * key, const type * item )  . ... A dictionary is a collection that associates an item with a key. ... The dictionary in our example maps char* keys to char* items. ... Equivalent to: QDict <char> dict; ... if ( dict. find (key) ) dict. remove ( key ); dict. insert ( key, item ); . ...