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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	char testchar = 0x08;
  6.  
  7. 	int bitsSet = 0;
  8. 	int bitNum = 0;
  9. 	int i = 1;
  10.  
  11. 	for (unsigned char c = 0x01; c != 0x00; c = c << 1)
  12. 	{
  13. 		if (c & testchar)
  14. 		{
  15.             bitsSet++;
  16.             bitNum = i;
  17. 		}
  18.  
  19.         i++;
  20. 	}
  21. 	cout << "Bits set [" << bitsSet << "] bitNum [" << bitNum << "]" << endl;
  22. 	return 0;
  23. }
Success #stdin #stdout 0.01s 5268KB
comments (?)
stdin 
Standard input is empty
stdout 
Bits set [1] bitNum [4]
https://ideone.com/u4mx1P
language:
C++14 (gcc 8.3)
created:
4 days ago
visibility:
public

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