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 'void read()': user.cpp:14: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void aduna(unsigned int*, unsigned int*)': user.cpp:22: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void prepare()': user.cpp:37: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int bun()': user.cpp:45: warning: comparison between signed and unsigned integer expressions user.cpp:48: warning: comparison between signed and unsigned integer expressions user.cpp:51: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void write()': user.cpp:68: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void back()': user.cpp:74: warning: comparison between signed and unsigned integer expressions