Compilare: user.cpp: In function ‘void Scanf(int&)’: user.cpp:21:29: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] for(;'0' <= buffer[poz] && buffer[poz] <='9' || buffer[poz] == '-';next) ^ user.cpp:20:5: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] for(;('0'> buffer[poz] || buffer[poz] > '9') && buffer[poz] != '-';next); ^ user.cpp:21:5: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] for(;'0' <= buffer[poz] && buffer[poz] <='9' || buffer[poz] == '-';next) ^ user.cpp: In function ‘int main()’: user.cpp:87:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("saracsaurege.in","r",stdin); ^ user.cpp:88:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("saracsaurege.out","w",stdout); ^