Compilare: user.cpp:7: warning: ‘typedef’ was ignored in this declaration user.cpp:12: warning: ‘typedef’ was ignored in this declaration user.cpp: In function ‘void read()’: user.cpp:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result