C++ Wcscpy() Function

#include<iostream>
#include<cwchar>
using namespace std;
int main()
{
    wchar_t ar[30] , an[30];

    cout << "Enter A String : ";
    wcin >> ar;
    cout << endl;

    wcscpy(an, ar);

    wcout << "Copy String is :: " << ar << endl;

    return 0;
}