Eroare de compilare: In file included from /usr/include/c++/4.2/backward/fstream.h:31, from user.cpp:1: /usr/include/c++/4.2/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header. Please consider using one of the 32 headers found in section 17.4.1.2 of the C++ standard. Examples include substituting the <X> header for the <X.h> header for C++ includes, or <iostream> instead of the deprecated header <iostream.h>. To disable this warning use -Wno-deprecated. user.cpp: In function 'int main()': user.cpp:10: error: no match for 'operator^' in 'g.std::basic_ofstream<char, std::char_traits<char> >::<anonymous>.std::basic_ostream<_CharT, _Traits>::operator<< [with _CharT = char, _Traits = std::char_traits<char>](n) ^ m' /usr/include/c++/4.2/bits/ios_base.h:165: note: candidates are: std::_Ios_Iostate std::operator^(std::_Ios_Iostate, std::_Ios_Iostate) /usr/include/c++/4.2/bits/ios_base.h:127: note: std::_Ios_Openmode std::operator^(std::_Ios_Openmode, std::_Ios_Openmode) /usr/include/c++/4.2/bits/ios_base.h:87: note: std::_Ios_Fmtflags std::operator^(std::_Ios_Fmtflags, std::_Ios_Fmtflags)