Compilare: user.cpp: In function ‘void CountingSort0x_0(int*, int*)’: user.cpp:12:29: warning: operation on ‘i’ may be undefined [-Wsequence-point] for(; i != 0x7FF; index[++i] = index[~-i] + frequence[~-i]); ^~~ user.cpp:12:29: warning: operation on ‘i’ may be undefined [-Wsequence-point] user.cpp: In function ‘void CountingSort0x_B(int*, int*)’: user.cpp:23:29: warning: operation on ‘i’ may be undefined [-Wsequence-point] for(; i != 0x7FF; index[++i] = index[~-i] + frequence[~-i]); ^~~ user.cpp:23:29: warning: operation on ‘i’ may be undefined [-Wsequence-point] user.cpp: In function ‘void CountingSort0x16(int*, int*)’: user.cpp:34:29: warning: operation on ‘i’ may be undefined [-Wsequence-point] for(; i != 0x7FF; index[++i] = index[~-i] + frequence[~-i]); ^~~ user.cpp:34:29: warning: operation on ‘i’ may be undefined [-Wsequence-point] user.cpp: At global scope: user.cpp:64:37: warning: always_inline function might not be inlinable [-Wattributes] __attribute__((always_inline)) void itoa(int x) ^~~~ user.cpp:39:36: warning: always_inline function might not be inlinable [-Wattributes] __attribute__((always_inline)) int get_nr() ^~~~~~ user.cpp:28:37: warning: always_inline function might not be inlinable [-Wattributes] __attribute__((always_inline)) void CountingSort0x16(int A[], int B[]) ^~~~~~~~~~~~~~~~ user.cpp:17:37: warning: always_inline function might not be inlinable [-Wattributes] __attribute__((always_inline)) void CountingSort0x_B(int A[], int B[]) ^~~~~~~~~~~~~~~~ user.cpp:6:37: warning: always_inline function might not be inlinable [-Wattributes] __attribute__((always_inline)) void CountingSort0x_0(int A[], int B[]) ^~~~~~~~~~~~~~~~ user.cpp: In function ‘int get_nr()’: user.cpp:47:23: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] ++p == 0x8000 && (fread(inBuffer, 0x1, 0x8000, stdin), p = 0x0); ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ user.cpp:54:23: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] ++p == 0x8000 && (fread(inBuffer, 0x1, 0x8000, stdin), p = 0x0); ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:88:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("algsort.in", "r", stdin); ^ user.cpp:108:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("algsort.out", "w", stdout); ^