This is my code for character type .Whats the error

#1

#include
using namespace std;
char func(char c)
{
if(isupper©)
{
return ‘U’;
}
else if(islower©)
{
return ‘L’;
}
else{
return ‘I’;
}
}
int main() {
char c;
cout<<func©;
return 0;
}

#2

u are not taking any input