Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:19:17: error: no matching function for call to ‘std::basic_ifstream<char>::getline(char [50])’ f.getline(a); ^ user.cpp:19:17: note: candidates are: In file included from /usr/include/c++/4.8/fstream:38:0, from user.cpp:1: /usr/include/c++/4.8/istream:618:5: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::getline(std::basic_istream<_CharT, _Traits>::char_type*, std::streamsize, std::basic_istream<_CharT, _Traits>::char_type) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::char_type = char; std::streamsize = int] basic_istream<char>:: ^ /usr/include/c++/4.8/istream:618:5: note: candidate expects 3 arguments, 1 provided /usr/include/c++/4.8/istream:427:7: note: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::getline(std::basic_istream<_CharT, _Traits>::char_type*, std::streamsize) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>; std::basic_istream<_CharT, _Traits>::char_type = char; std::streamsize = int] getline(char_type* __s, streamsize __n) ^ /usr/include/c++/4.8/istream:427:7: note: candidate expects 2 arguments, 1 provided user.cpp:22:21: error: no matching function for call to ‘std::basic_ifstream<char>::getline(char [50])’ f.getline(a); ^ user.cpp:22:21: note: candidates are: In file included from /usr/include/c++/4.8/fstream:38:0, from user.cpp:1: /usr/include/c++/4.8/istream:618:5: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::getline(std::basic_istream<_CharT, _Traits>::char_type*, std::streamsize, std::basic_istream<_CharT, _Traits>::char_type) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::char_type = char; std::streamsize = int] basic_istream<char>:: ^ /usr/include/c++/4.8/istream:618:5: note: candidate expects 3 arguments, 1 provided /usr/include/c++/4.8/istream:427:7: note: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::getline(std::basic_istream<_CharT, _Traits>::char_type*, std::streamsize) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>; std::basic_istream<_CharT, _Traits>::char_type = char; std::streamsize = int] getline(char_type* __s, streamsize __n) ^ /usr/include/c++/4.8/istream:427:7: note: candidate expects 2 arguments, 1 provided