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  1. #include <iostream>
  2.  
  3. int main()
  4. {
  5. 	const int wrap = 255;
  6.  
  7. 	int x = 1;
  8.  
  9. 	std::cout << "X = " << x << std::endl;
  10. 	while( x < 256 ) 
  11. 	{
  12. 		x <<= 1;
  13. 		std::cout << "X = " << x << std::endl;
  14. 	}
  15.  
  16. 	if( x >= 256 ) //the next shift
  17. 	{
  18. 		x -= wrap;
  19. 		std::cout << "X wrapped!" << std::endl << "X = " << x << std::endl;
  20. 	}
  21. 	return 0;
  22. }
Success #stdin #stdout 0s 3296KB
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stdin
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Standard input is empty
stdout
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X = 1
X = 2
X = 4
X = 8
X = 16
X = 32
X = 64
X = 128
X = 256
X wrapped!
X = 1
https://ideone.com/oEnRe4
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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