Web Site under testing.....

#include 
#include 
#include 

using namespace std;
int stack[6];
void push(int element);
int pop();
string display();
int is_empty();
int element();
int top = -1;

int main(int argc, const char * argv[]) {
    int element, choice,i;
    for (i=1; i>0; i++) {
        cout<< "--------Stack--------\n";
        cout<< "1 -> Push \n";
        cout<< "2 -> Pop \n";
        cout<< "3 -> Top \n";
        cout<< "4 -> Empty \n";
        cout<< "5 -> Display \n";
        cout<< "6 -> Exit \n";
        cout<< "7 -> Enter your choice \n";
        cin>>choice;
        switch (choice) {
            case 1:
                if (top ==5) {
                    cout<<"\a Error: Overflow\n\n";
                }
                else {
                    cout<<"\a  Enter the value\n\n";
                    cin>>element;
                    push(element);
                }
                break;
   
              
            case 2:
                if (top==-1){
                    cout<<"\a Stack empty \n";
                }
                else{
                    cout< 
                
            case 3:
                if (top==-1)
                    cout<<"\a stack is empty \n ";
                else
                    cout<
            case 4:
                if (top==-1)
                    cout<<"\a Stack is empty \n ";
                else
                    cout<<" Stack is not empty \n ";
                break;
    
  
            case 5:
                if (top==-1)
                    cout<<"\a Stack is empty\n";
                else
                    cout<
            case 6:
                exit(0);
            default:
                break;
        }
        
    }
    return 0;
}



void push(int a){
    stack[++top]=a;
}

int pop(){
    return stack[top--];
}

string display(){
    for (int a=top; a>=0; a--) {
        cout<<"\n"<< stack[a]<<"\n";
    }
    return "--End--";
}