1 int CheckPow2(int num)
2 {
3 if (num < 0)
4 return -1;
5
6 if (0 == (num & (num - 1)))
7 return 0;
8 else
9 return 1;
10 }
1 int CheckPow2(int num)
2 {
3 if (num < 0)
4 return -1;
5
6 if (0 == (num & (num - 1)))
7 return 0;
8 else
9 return 1;
10 }