SLL< Entry <string, int> >** list;

list = new SLL<Entry<string, int> > * [this->size];

list[hash]->append(new Entry<string, int>(key, e));

HashTable.h: In member function 'void HashTable::createEntry(std::string, int)':
HashTable.h:78:53: error: no matching function for call to 'SLL<Entry<std::basic_string<char>, int> >::append(Entry<std::basic_string<char>, int>*)'
list[hash]->append(new Entry<string, int>(key, i));