Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:53:9: error: no match for ‘operator=’ (operand types are ‘std::ofstream {aka std::basic_ofstream<char>}’ and ‘std::fstream {aka std::basic_fstream<char>}’) out = fstream("blis.out", ios::app); ^ user.cpp:53:9: note: candidate is: In file included from user.cpp:1:0: /usr/include/c++/4.8/fstream:599:11: note: std::basic_ofstream<char>& std::basic_ofstream<char>::operator=(const std::basic_ofstream<char>&) <deleted> class basic_ofstream : public basic_ostream<_CharT,_Traits> ^ /usr/include/c++/4.8/fstream:599:11: note: no known conversion for argument 1 from ‘std::fstream {aka std::basic_fstream<char>}’ to ‘const std::basic_ofstream<char>&’