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  1. #include <iostream>
  2.  
  3. void f( void* p, int type )
  4. {
  5. 	switch( type )
  6. 	{
  7. 		case 0: std::cout << *reinterpret_cast<int*>(p); break; // int
  8. 		case 1: std::cout << *reinterpret_cast<double*>(p); break; // double
  9. 		//...
  10. 	}
  11. 	std::cout << std::endl;
  12. }
  13.  
  14. int main() {
  15.  
  16. 	int i = 42;
  17. 	double d = 3.1415;
  18.  
  19. 	f( &i, 0 ); // ok
  20. 	f( &d, 1 ); // ok 
  21.  
  22. 	f( &i, 1 ); // ошибка 
  23. 	f( &d, 0 ); // ошибка
  24.  
  25. 	return 0;
  26. }
Success #stdin #stdout 0s 3340KB
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42
3.1415
-610.304
-1065151889
https://ideone.com/MgRxhb
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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