Compilare: user.cpp: In function ‘void CountingSort1()’: user.cpp:18:73: warning: operation on ‘i’ may be undefined [-Wsequence-point] for(u32 i = 0x0; i != 0x7FF; index[++i] = index[~-i] + frequence[~-i]); ^ user.cpp:18:73: warning: operation on ‘i’ may be undefined [-Wsequence-point] user.cpp: In function ‘void CountingSort2()’: user.cpp:29:73: warning: operation on ‘i’ may be undefined [-Wsequence-point] for(u32 i = 0x0; i != 0x7FF; index[++i] = index[~-i] + frequence[~-i]); ^ user.cpp:29:73: warning: operation on ‘i’ may be undefined [-Wsequence-point] user.cpp: In function ‘void CountingSort3()’: user.cpp:40:73: warning: operation on ‘i’ may be undefined [-Wsequence-point] for(u32 i = 0x0; i != 0x7FF; index[++i] = index[~-i] + frequence[~-i]); ^ user.cpp:40:73: warning: operation on ‘i’ may be undefined [-Wsequence-point] user.cpp: In function ‘i32 main()’: user.cpp:77:61: warning: operation on ‘i’ may be undefined [-Wsequence-point] v[--i] = (u64(v[-~i]) * 0x3D + 0x9) % 0x367C2DC9; ^ user.cpp:84:61: warning: operation on ‘i’ may be undefined [-Wsequence-point] v[--i] = (u64(v[-~i]) * 0xF + 0x3C) % 0x7CE67EF6; ^ user.cpp:91:62: warning: operation on ‘i’ may be undefined [-Wsequence-point] v[--i] = (u64(v[-~i]) * 0x2E + 0x22) % 0x6F6E4E7B; ^ user.cpp:98:59: warning: operation on ‘i’ may be undefined [-Wsequence-point] v[--i] = (u64(v[-~i]) * 0x53 + 0x2E) % 0xF4240; ^ user.cpp:105:58: warning: operation on ‘i’ may be undefined [-Wsequence-point] v[--i] = (u64(v[-~i]) * 0x1E + 0xE) % 0x65759; ^ user.cpp:112:47: warning: operation on ‘i’ may be undefined [-Wsequence-point] v[--i] = (u64(v[-~i]) * A + B) % C; ^ user.cpp: At global scope: user.cpp:47:37: warning: always_inline function might not be inlinable [-Wattributes] __attribute__((always_inline)) void itoa(unsigned int x) ^ user.cpp:34:37: warning: always_inline function might not be inlinable [-Wattributes] __attribute__((always_inline)) void CountingSort3() ^ user.cpp:23:37: warning: always_inline function might not be inlinable [-Wattributes] __attribute__((always_inline)) void CountingSort2() ^ user.cpp:12:37: warning: always_inline function might not be inlinable [-Wattributes] __attribute__((always_inline)) void CountingSort1() ^ user.cpp: In function ‘i32 main()’: user.cpp:69:79: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(freopen("radixsort.in", "r", stdin), "%d %d %d %d", &N, &A, &B, &C);