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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. template <int N>
  5. struct clog2
  6. {
  7.     enum { value = clog2<(N >> 1)>::value + 1 };
  8. };
  9.  
  10. template <>
  11. struct clog2<1> 
  12. {
  13.     enum { value = 0 };
  14. };
  15.  
  16.  
  17. int main() {
  18. 	printf("%d\n", clog2<500>::value);
  19.     printf("%d\n", clog2<600>::value);
  20. 	return 0;
  21. }
Success #stdin #stdout 0s 15232KB
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https://ideone.com/HTyNol
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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