Demonstrating Passing by Value : pointer « Data Type « C++

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

Demonstrating Passing by Value

  
#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 x, int y)
{
   int temp;

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

   temp = x;
   x = y;
   y = temp;

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

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