Consider the following code snippet for checking whether a number is the power of 2 or not.if x=0

[abhi05061998]

bool isPowerOfTwo (unsigned int x) 
{ 
  return (!(x&(x-1))); 
}

I am really confused in this problem according to my concept the answer is yes but the main answer is . this snippet is not correct for 0. help me, anyone, plz

[ameybhavsar]

You are using unsigned int..
If x=0, x-1=-1 which does fit in the range of unsigned int which is [0,4,294,967,295] hence there will be underflow.
Also, 0 is not a power of 2.
To handle this case use

return x && (!(x&(x-1))); 

[abhi05061998]

thankyou bro