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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. int* f(int& i)
  6. {
  7.     i += 4;
  8.     return &i;
  9. }
  10.  
  11. int g(int i)
  12. {
  13.     return i *= 2;
  14. }
  15.  
  16. void h(int* i)
  17. {
  18.     *i -= 3;
  19. }
  20.  
  21. int main()
  22. {
  23.     int A;
  24.     A = g(3);
  25.     cout << A; // A= 6
  26.     A--;
  27.     cout << A; // A= 5
  28.     h(&A);
  29.     cout << A; // A= 2
  30.     (*f(A))--;
  31.     cout << A; // A= 5 dlaczego?
  32.     g(A);
  33.     cout << A;
  34. } // A=5 ale dlaczego?
Success #stdin #stdout 0s 3096KB
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https://ideone.com/pBJZAj
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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