Compilare: main.cpp: In function 'void CountingSort1()': main.cpp:18:40: warning: operation on 'i' may be undefined [-Wsequence-point] for(u32 i = 0x0; i != 0x7FF; index[++i] = index[~-i] + frequence[~-i]); ^~~ main.cpp:18:40: warning: operation on 'i' may be undefined [-Wsequence-point] main.cpp: In function 'void CountingSort2()': main.cpp:29:40: warning: operation on 'i' may be undefined [-Wsequence-point] for(u32 i = 0x0; i != 0x7FF; index[++i] = index[~-i] + frequence[~-i]); ^~~ main.cpp:29:40: warning: operation on 'i' may be undefined [-Wsequence-point] main.cpp: In function 'void CountingSort3()': main.cpp:40:40: warning: operation on 'i' may be undefined [-Wsequence-point] for(u32 i = 0x0; i != 0x7FF; index[++i] = index[~-i] + frequence[~-i]); ^~~ main.cpp:40:40: warning: operation on 'i' may be undefined [-Wsequence-point] main.cpp: In function 'i32 main()': main.cpp:77:15: warning: operation on 'i' may be undefined [-Wsequence-point] v[--i] = (u64(v[-~i]) * 0x3D + 0x9) % 0x367C2DC9; ^~~ main.cpp:84:15: warning: operation on 'i' may be undefined [-Wsequence-point] v[--i] = (u64(v[-~i]) * 0xF + 0x3C) % 0x7CE67EF6; ^~~ main.cpp:91:15: warning: operation on 'i' may be undefined [-Wsequence-point] v[--i] = (u64(v[-~i]) * 0x2E + 0x22) % 0x6F6E4E7B; ^~~ main.cpp:98:15: warning: operation on 'i' may be undefined [-Wsequence-point] v[--i] = (u64(v[-~i]) * 0x53 + 0x2E) % 0xF4240; ^~~ main.cpp:105:15: warning: operation on 'i' may be undefined [-Wsequence-point] v[--i] = (u64(v[-~i]) * 0x1E + 0xE) % 0x65759; ^~~ main.cpp:112:15: warning: operation on 'i' may be undefined [-Wsequence-point] v[--i] = (u64(v[-~i]) * A + B) % C; ^~~ main.cpp:120:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("radixsort.out", "w", stdout); ^