Compilare: user.cpp: In function ‘void readInt(int&)’: user.cpp:15:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] c = buff[pos++]; ^ user.cpp:21:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] c = buff[pos++]; ^ user.cpp: In function ‘int main()’: user.cpp:28:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("elmaj.in", "r", stdin); ^ user.cpp:29:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("elmaj.out", "w", stdout); ^ user.cpp: In function ‘void readInt(int&)’: user.cpp:14:48: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(pos == 8) { fread(buff, 1, 8, stdin); pos = 0; } ^ user.cpp:20:48: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(pos == 8) { fread(buff, 1, 8, stdin); pos = 0; } ^