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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. void swap(int*& x, int*& y) {
  6.     int *s;
  7.     s = x;
  8.     x = y;
  9.     y = s;
  10. }
  11.  
  12. int main() {
  13.     int a, b;
  14.     int* pa = &a, *pb = &b;
  15.  
  16.     cout << "pa = " << static_cast<void*>(pa) << endl;
  17.     cout << "pb = " << static_cast<void*>(pb) << endl;
  18.  
  19.     swap(pa, pb);
  20.  
  21.     cout << "pa = " << static_cast<void*>(pa) << endl;
  22.     cout << "pb = " << static_cast<void*>(pb) << endl;
  23.  
  24. 	return 0;
  25. }
Success #stdin #stdout 0s 3296KB
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stdin
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Standard input is empty
stdout
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pa = 0xbf9b0df8
pb = 0xbf9b0dfc
pa = 0xbf9b0dfc
pb = 0xbf9b0df8
https://ideone.com/f6B70X
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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