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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. typedef int (*funct_ptr_good)(int, void *);
  5. typedef int (*funct_ptr_bad)();
  6.  
  7. void foo(funct_ptr_bad fb) {
  8. 	funct_ptr_good fg = reinterpret_cast<funct_ptr_good>(fb);
  9. 	fg(12345, NULL);
  10. }
  11.  
  12. int main() {
  13. 	funct_ptr_good fg = [] (int key, void * ptr) -> int {
  14. 		cout << key << " " << ptr << endl;
  15. 		return 0;
  16. 	};
  17. 	foo(reinterpret_cast<funct_ptr_bad>(fg));
  18. 	return 0;
  19. }
Success #stdin #stdout 0s 3296KB
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Standard input is empty
stdout
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12345 0
https://ideone.com/iDQH9R
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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