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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. struct Pituh {
  5.   union {
  6.     int a;
  7.     double b;
  8.   };
  9.   void set(int k, int v1, double v2) {
  10.     if (k % 2 == 0) {
  11.       a = v1;
  12.     } else {
  13.       b = v2;
  14.     }
  15.   }
  16.   void print(int k) {
  17.     if (k % 2 == 0) {
  18.       cout << a << endl;
  19.     } else {
  20.       cout << b << endl;
  21.     }
  22.   }
  23. };
  24.  
  25. static_assert(sizeof(Pituh) == 8);
  26.  
  27. int main() {
  28.   Pituh p1;
  29.   p1.set(0, 1, 0.5);
  30.   p1.print(10);
  31.   Pituh p2;
  32.   p2.set(1, 1, 0.5);
  33.   p2.print(11);
  34. }
  35.  
Success #stdin #stdout 0s 4396KB
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stdin
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Standard input is empty
stdout
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1
0.5
https://ideone.com/IIrrgL
language:
C++14 (gcc 8.3)
created:
3 years ago
visibility:
public

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