Eroare de compilare: In file included from /usr/include/c++/4.2/backward/fstream.h:31, from user.cpp:2: /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. In file included from /usr/include/c++/4.2/iosfwd:44, from /usr/include/c++/4.2/ios:43, from /usr/include/c++/4.2/istream:44, from /usr/include/c++/4.2/fstream:45, from /usr/include/c++/4.2/backward/fstream.h:32, from user.cpp:2: /usr/include/c++/4.2/i486-linux-gnu/bits/c++config.h:149: error: expected `;' before 'namespace'