can someone tell me what i am doing wrong
#include<iostream>
using namespace std;
void char play_again(char letter, char 'y', char 'n');
void char play_again( char letter, char 'y', char 'n')
{
char 'y', 'n';
char letter ;
cout << " Would you like to play agian?( press y or n): ";
cin >> letter;
return letter;
}