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  1. #include <iostream>
  2.  
  3. template <typename T, int N>
  4. char (&ArraySizeHelper(T (&array)[N]))[N];
  5. #define NELEMS(x) (sizeof(ArraySizeHelper(x)))
  6.  
  7. int main()
  8. {
  9.     int ar[10];
  10.     std::cout << NELEMS(ar) << '\n';
  11. }
Success #stdin #stdout 0s 3096KB
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Standard input is empty
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10
https://ideone.com/l3OWYN
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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