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  1. #include <iostream>
  2.  
  3. template<class T>
  4. void serialize(std::ostream& os, T const& obj,
  5.      decltype(obj.stream(os),char())* = 0)
  6. {
  7.   obj.stream(os);
  8. }
  9.  
  10. struct X{
  11.   void stream(std::ostream&) const{
  12.     std::cout << "\nX::stream()\n";
  13.   }
  14. };
  15.  
  16. int main(){
  17.   X x;
  18.   serialize(std::cout, x);
  19. }
Success #stdin #stdout 0s 2828KB
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Standard input is empty
stdout
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X::stream()
https://ideone.com/uNTNJ
language:
C++14 (gcc 8.3)
created:
14 years ago
visibility:
secret

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