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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. struct Foo
  5. {
  6. 	Foo(bool should_throw) {
  7. 		if(should_throw)
  8. 			throw std::logic_error("Constructor failed");
  9. 		cout << "Constructed at " << this << endl;
  10. 	}
  11. 	~Foo() {
  12. 		cout << "Destroyed at " << this << endl;
  13. 	}
  14. };
  15.  
  16. void double_free_anyway()
  17. {
  18. 	Foo f(false);
  19. 	f.~Foo();
  20. 	new (&f) Foo(true);
  21. }
  22.  
  23. int main() {
  24. 	try {
  25. 		double_free_anyway();
  26. 	} catch(std::logic_error& e) {
  27. 		cout << "Error: " << e.what();
  28. 	}
  29. }
Success #stdin #stdout 0s 16056KB
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stdin
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Standard input is empty
stdout
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Constructed at 0x7fff41ebf03f
Destroyed at 0x7fff41ebf03f
Destroyed at 0x7fff41ebf03f
Error: Constructor failed
https://ideone.com/30biUh
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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