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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. struct bar {
  5.     const char *operator!() {return "kaboom";}
  6. };
  7.  
  8. struct foo {
  9.     bar operator!() {return bar();}
  10. };
  11.  
  12. int main() {
  13. 	std::cout << !!foo() << std::endl;
  14. 	return 0;
  15. }
Success #stdin #stdout 0s 3456KB
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Standard input is empty
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kaboom
https://ideone.com/XdLBKO
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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