Compilare: user.cpp: In function ‘int main()’: user.cpp:48:29: warning: ‘stop’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout << start << " " << stop << " " << lim_inf << " " << lim_sup; ^ user.cpp:48:69: warning: ‘lim_sup’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout << start << " " << stop << " " << lim_inf << " " << lim_sup; ^ user.cpp:48:44: warning: ‘lim_inf’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout << start << " " << stop << " " << lim_inf << " " << lim_sup; ^