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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4. /*************************************/
  5. union Union
  6. {
  7. 	int i;
  8. 	double d;
  9. 	char c;
  10. };
  11. /*************************************/
  12. struct Struct
  13. {
  14. 	Union *wskU;
  15.  
  16. 	Union uObj;
  17. 	Union uObj2;
  18.  
  19. 	friend void wpisz( Struct, Union&, int );
  20. 	friend void wpisz( Struct, Union&, double );
  21. 	friend void wpisz( Struct, Union&, char );
  22.  
  23. };
  24. /*************************************/
  25. void wpisz( Struct s, Union &u, int n )
  26. {
  27. 	s.wskU = &u;
  28. 	s.wskU -> i = n;
  29. }
  30. void wpisz( Struct s, Union &u, double n ) 
  31. {
  32. 	s.wskU = &u;
  33. 	s.wskU -> d = n;
  34. }
  35. void wpisz( Struct s, Union &u, char n )
  36. {
  37. 	s.wskU = &u;
  38. 	s.wskU -> c = n;
  39. }
  40. /*************************************/
  41. int main( void )
  42. {
  43. 	Struct s;
  44. 	wpisz( s, s.uObj, 'X' );
  45. 	wpisz( s, s.uObj2, 666 );
  46.  
  47. 	cout << "Znak w pierwszym: " << s.uObj.c << endl;
  48. 	cout << "Liczba w drugim: " << s.uObj2.i << endl;
  49. }
Success #stdin #stdout 0s 3296KB
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stdin
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Standard input is empty
stdout
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Znak w pierwszym: X
Liczba w drugim: 666
https://ideone.com/Lqd7Ki
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
public

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