#include <iostream>
#include <cstring>
using namespace std;

void swapTest(char*& name_1, char*& name_2){
	
	char * tmp = name_2;
	name_2 = name_1;
	name_1 = tmp;
	
}

int main () {
	
	char* name_1 = new char[20];
	char* name_2 = new char[20];
	
	strcpy(name_1,"Joseph");
	strcpy(name_2,"Marc");
	
	cout << name_1 << " " << name_2<<endl;
	
	swapTest(name_1,name_2);
	
	cout << name_1 << " " << name_2;
	
	return 0;
}