Compilare: user.cpp: In function ‘int get_int()’: user.cpp:12:81: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] #define next ++poz; if (poz >= MAXBUFF) {poz = 0; fread(buff, 1, MAXBUFF, stdin);} ^ user.cpp:16:49: note: in expansion of macro ‘next’ while (buff[poz] < '0' || buff[poz] > '9') {next}; ^ user.cpp:12:81: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] #define next ++poz; if (poz >= MAXBUFF) {poz = 0; fread(buff, 1, MAXBUFF, stdin);} ^ user.cpp:21:41: note: in expansion of macro ‘next’ nr = nr * 10 + buff[poz] - '0'; next ^ user.cpp: In function ‘int main()’: user.cpp:43:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bancomat.in", "r", stdin); ^