swap() Rewritten with References : reference « Data Type « C++






  1. C++
  2. Data Type
  3. reference

swap() Rewritten with References

  
#include <iostream>

using namespace std;
void swap(int &x, int &y);

int main(){
   int x = 5, y = 10;

   cout << "Main. Before swap, x: " << x << " y: "
      << y << endl;

   swap(x,y);

   cout << "Main. After swap, x: " << x << " y: "
      << y << endl;

   return 0;
}
void swap (int &rx, int &ry){
   int temp;

   cout << "Swap. Before swap, rx: " << rx << " ry: " << ry << endl;

   temp = rx;
   rx = ry;
   ry = temp;


   cout << "Swap. After swap, rx: " << rx << " ry: " << ry << endl;

}








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