/* swap() * common use for pointers * demonstrates use of * to dereference, * to declare pointer, and & to pass an address */ #include <iostream> using namespace std; void swap(int * x, int * y) { int temp = *x; //temp = dereference x *x = *y; *y = temp; } int main() { int a=0; int b=3; cout << "Before swap(): a: " << a << " b: " << b << endl; swap(&b,&a); cout << "After swap(): a: " << a << " b: " << b << endl; return 0; }