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  1. #include <iostream>
  2.  
  3. class A;
  4. A& getRef(void);
  5. char (&func(A&))[2];
  6.  
  7. int main() {
  8.     bool isDefault = sizeof(func(getRef()))==2;
  9.     std::cout << isDefault << std::endl;
  10.     return 0;
  11. }
  12.  
Success #stdin #stdout 0s 3468KB
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https://ideone.com/YQD9v0
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
secret

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