criptmat.cpp:12: error: 'std::string crypt' redeclared as different kind of symbol /usr/include/unistd.h:1123: error: previous declaration of 'char* crypt(const char*, const char*)' criptmat.cpp: In function 'int main()': criptmat.cpp:17: error: ambiguous overload for 'operator>>' in 'fin >> crypt' /usr/include/c++/4.4/istream:119: note: candidates are: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>& (*)(std::basic_istream<_CharT, _Traits>&)) [with _CharT = char, _Traits = std::char_traits<char>] <near match> /usr/include/c++/4.4/istream:123: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_ios<_CharT, _Traits>& (*)(std::basic_ios<_CharT, _Traits>&)) [with _CharT = char, _Traits = std::char_traits<char>] <near match> /usr/include/c++/4.4/istream:130: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char, _Traits = std::char_traits<char>] <near match> criptmat.cpp:19: error: request for member 'size' in 'crypt', which is of non-class type 'char*(const char*, const char*)throw ()' criptmat.cpp:20: error: request for member 'begin' in 'crypt', which is of non-class type 'char*(const char*, const char*)throw ()' criptmat.cpp:20: error: request for member 'begin' in 'crypt', which is of non-class type 'char*(const char*, const char*)throw ()' criptmat.cpp:22: warning: pointer to a function used in arithmetic criptmat.cpp:22: error: invalid conversion from 'char* (*)(const char*, const char*)throw ()' to 'char' criptmat.cpp:26: error: request for member 'size' in 'crypt', which is of non-class type 'char*(const char*, const char*)throw ()'