Eroare de compilare: user.cpp:8: error: ‘char read [4000005]’ redeclared as different kind of symbol /usr/include/bits/unistd.h:35: error: previous declaration of ‘ssize_t read(int, void*, size_t)’ user.cpp: In function ‘void get(int&)’: user.cpp:21: warning: pointer to a function used in arithmetic user.cpp:21: error: invalid initialization of non-const reference of type ‘char&’ from a temporary of type ‘ssize_t (*)(int, void*, size_t)’ user.cpp:14: error: in passing argument 1 of ‘bool cifra(char&)’ user.cpp:24: warning: pointer to a function used in arithmetic user.cpp:24: error: invalid initialization of non-const reference of type ‘char&’ from a temporary of type ‘ssize_t (*)(int, void*, size_t)’ user.cpp:14: error: in passing argument 1 of ‘bool cifra(char&)’ user.cpp:25: warning: pointer to a function used in arithmetic user.cpp:25: warning: pointer to a function used in arithmetic user.cpp:25: warning: pointer to a function used in arithmetic user.cpp:25: error: invalid conversion from ‘ssize_t (*)(int, void*, size_t)’ to ‘int’ user.cpp: In function ‘void get_graph()’: user.cpp:30: error: no matching function for call to ‘std::basic_ifstream<char, std::char_traits<char> >::getline(ssize_t (&)(int, void*, size_t), const int&, char)’ /usr/include/c++/4.4/istream:593: note: candidates are: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::getline(_CharT*, std::streamsize, _CharT) [with _CharT = char, _Traits = std::char_traits<char>] /usr/include/c++/4.4/istream:405: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::getline(_CharT*, std::streamsize) [with _CharT = char, _Traits = std::char_traits<char>]