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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. template<typename T, size_t N>
  5. size_t getLen(T (&arr)[N]) {
  6. 	return N;
  7. }
  8.  
  9.  
  10. int main() {
  11. 	int arr1[123] = {};
  12. 	int arr2[] = {1,2,3};
  13. 	const char arr3[] = "asd";
  14. 	cout << getLen(arr1) << "\n";
  15. 	cout << getLen(arr2) << "\n";
  16. 	cout << getLen(arr3) << "\n";
  17. 	return 0;
  18. }
Success #stdin #stdout 0s 3412KB
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stdin
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Standard input is empty
stdout
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123
3
4
https://ideone.com/cPByno
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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