Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:27:37: error: no matching function for call to ‘std::unordered_map<std::basic_string<char>, bool>::hash_function(std::string&)’ Hash = RabinKarp.hash_function(str1); ^ user.cpp:27:37: note: candidate is: In file included from /usr/include/c++/4.8/unordered_map:48:0, from user.cpp:4: /usr/include/c++/4.8/bits/unordered_map.h:518:7: note: std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::hasher std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::hash_function() const [with _Key = std::basic_string<char>; _Tp = bool; _Hash = std::hash<std::basic_string<char> >; _Pred = std::equal_to<std::basic_string<char> >; _Alloc = std::allocator<std::pair<const std::basic_string<char>, bool> >; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::hasher = std::hash<std::basic_string<char> >] hash_function() const ^ /usr/include/c++/4.8/bits/unordered_map.h:518:7: note: candidate expects 0 arguments, 1 provided