Compilare: user.cpp: In function ‘void read(int&)’: user.cpp:32:23: warning: suggest parentheses around comparison in operand of ‘|’ [-Wparentheses] while(inBuffer[p] < 0x30 | inBuffer[p] > 0x39) ^ user.cpp:37:23: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] while(inBuffer[p] > 0x2F & inBuffer[p] < 0x3A) ^ user.cpp: At global scope: user.cpp:26:37: warning: always_inline function might not be inlinable [-Wattributes] __attribute__((always_inline)) void read(int &num) ^ user.cpp: In function ‘void read(int&)’: user.cpp:34:21: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] ++p != SIZE || (fread(inBuffer, 0x1, SIZE, stdin), p = 0x0); ^ user.cpp:41:21: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] ++p != SIZE || (fread(inBuffer, 0x1, SIZE, stdin), p = 0x0); ^ user.cpp: In function ‘int main()’: user.cpp:47:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dfs.in", "r", stdin); ^ user.cpp:48:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dfs.out", "w", stdout); ^