Compilare: user.cpp: In constructor ‘Stiva::Stiva(int)’: user.cpp:107:29: warning: argument to ‘sizeof’ in ‘void* memset(void*, int, size_t)’ call is the same expression as the destination; did you mean to dereference it? [-Wsizeof-pointer-memaccess] memset(st, 0, sizeof(st)); ^ user.cpp: In member function ‘char Scanner::getChar()’: user.cpp:20:50: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer, MAX_SIZE, 1, inputFile); ^