pow 2 c++ code example

Example 1: pow c++

#include <iostream>
#include <cmath>
using namespace std;
int main ()
{
  double base, exponent, result;		
  base = 3.4;	
  exponent = 4.4;	
  result = pow(base, exponent);		
  cout << base << "^" << exponent << " = " << result;		
  return 0;
}

Example 2: power of two c++

bool IsPowerOfTwo(int x) {
    return x && ((x & (x - 1)) == 0);
}