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  1. #include <iostream>
  2.  
  3. bool isPowerOf2(int number) { return !(number & (number - 1)); }
  4.  
  5. int main() {
  6. 	std::cout << isPowerOf2(1024) << std::endl;
  7. 	std::cout << isPowerOf2(1023) << std::endl;
  8. 	std::cout << isPowerOf2(0) << std::endl;
  9. 	return 0;
  10. }
Success #stdin #stdout 0s 15240KB
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https://ideone.com/Kp1tnr
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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