Eroare de compilare: user.cpp: In function ‘int main(int, char**)’: user.cpp:25:8: error: use of deleted function ‘std::basic_stringstream<char>& std::basic_stringstream<char>::operator=(const std::basic_stringstream<char>&)’ key = stringstream(); // i parse it ^ In file included from user.cpp:7:0: /usr/include/c++/4.8/sstream:502:11: note: ‘std::basic_stringstream<char>& std::basic_stringstream<char>::operator=(const std::basic_stringstream<char>&)’ is implicitly deleted because the default definition would be ill-formed: class basic_stringstream : public basic_iostream<_CharT, _Traits> ^ /usr/include/c++/4.8/sstream:502:11: error: use of deleted function ‘std::basic_iostream<char>& std::basic_iostream<char>::operator=(const std::basic_iostream<char>&)’ In file included from /usr/include/c++/4.8/iostream:40:0, from user.cpp:4: /usr/include/c++/4.8/istream:795:11: note: ‘std::basic_iostream<char>& std::basic_iostream<char>::operator=(const std::basic_iostream<char>&)’ is implicitly deleted because the default definition would be ill-formed: class basic_iostream ^ /usr/include/c++/4.8/istream:795:11: error: use of deleted function ‘std::basic_istream<char>& std::basic_istream<char>::operator=(const std::basic_istream<char>&)’ /usr/include/c++/4.8/istream:58:11: note: ‘std::basic_istream<char>& std::basic_istream<char>::operator=(const std::basic_istream<char>&)’ is implicitly deleted because the default definition would be ill-formed: class basic_istream : virtual public basic_ios<_CharT, _Traits> ^ /usr/include/c++/4.8/istream:58:11: error: use of deleted function ‘std::basic_ios<char>& std::basic_ios<char>::operator=(const std::basic_ios<char>&)’ In file included from /usr/include/c++/4.8/ios:44:0, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:4: /usr/include/c++/4.8/bits/basic_ios.h:66:11: note: ‘std::basic_ios<char>& std::basic_ios<char>::operator=(const std::basic_ios<char>&)’ is implicitly deleted because the default definition would be ill-formed: class basic_ios : public ios_base ^ In file included from /usr/include/c++/4.8/ios:42:0, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:4: /usr/include/c++/4.8/bits/ios_base.h:789:5: error: ‘std::ios_base& std::ios_base::operator=(const std::ios_base&)’ is private operator=(const ios_base&); ^ In file included from /usr/include/c++/4.8/ios:44:0, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:4: /usr/include/c++/4.8/bits/basic_ios.h:66:11: error: within this context class basic_ios : public ios_base ^ In file included from /usr/include/c++/4.8/iostream:40:0, from user.cpp:4: /usr/include/c++/4.8/istream:795:11: error: use of deleted function ‘std::basic_ostream<char>& std::basic_ostream<char>::operator=(const std::basic_ostream<char>&)’ class basic_iostream ^ In file included from /usr/include/c++/4.8/iostream:39:0, from user.cpp:4: /usr/include/c++/4.8/ostream:58:11: note: ‘std::basic_ostream<char>& std::basic_ostream<char>::operator=(const std::basic_ostream<char>&)’ is implicitly deleted because the default definition would be ill-formed: class basic_ostream : virtual public basic_ios<_CharT, _Traits> ^