While Loop Won't loop C++ - c++

Question

I can't seem to figure out why this while loop stopped looping. It was doing fine before I moved some code around. Now I got something else working and it just doesn't loop. I've also tried making quit a bool set to true and tried to have it loop while it was true until the user hit 4 to exit in which case it would turn it to false but that didn't work. I also tried adding a while loop to the function of showMenu but that also didn't work. I know it must be something simple I just can't catch it. gggrrrr.
#include "stdafx.h"
#include <iostream>
#include <iomanip>
using namespace std;
enum transType { SETUP=1, DEPOSITE, WITHDRAW, EXIT};
int showMenu(double balance);
double transaction(double amount, double balance, transType trans);
int menuSwitch;
int quit=0;
int _tmain(int argc, _TCHAR* argv[]){
int amount=0,balance=0;
while(quit!=4){
showMenu(balance);
switch (menuSwitch){
case DEPOSITE:
cout<<"Enter the amount of deposit: ";
cin>>amount;
cout<<"Your current balance is: "<<transaction(amount,balance,DEPOSITE)<<endl<<endl;
break;
case WITHDRAW:
cout<<"Enter the amount of withdraw: ";
cin>>amount;
if(amount>balance){
cout<<"*** Insufficient funds."<<"Your current balance is: "<<transaction(amount,balance,WITHDRAW)<<endl<<endl;
}
else cout<<"Your current balance is: "<<transaction(amount,balance,WITHDRAW)<<endl<<endl;
break;
case EXIT:
cout<<"Have a Nice Day."<<endl;
quit=4;
break;
}
return 0;
}
}
int showMenu(double balance){
// while(quit==true){
cout<<"Your Online Checking Account System"<<endl;
cout<<"-------------------------------------------"<<endl;
cout<<"Select an option:"<<endl<<endl;
cout<<" 1. Set up the account."<<endl;
cout<<" 2. Deposit Funds into your Account."<<endl;
cout<<" 3. Withdraw Funds out of your Account."<<endl;
cout<<" 4. Exit"<<endl;
cout<<endl<<">>";
cin>>menuSwitch;
switch (menuSwitch){
case SETUP:
cout<<"Enter the balance: ";
cin>>balance;
cout<<endl<<"Your current balance is: "<<balance<<endl<<endl;
break;
}
return balance;
// }
}
double transaction(double amount, double balance, transType trans){
double withdraw = balance-amount;
double deposite = balance+amount;
if(trans=DEPOSITE){
return deposite;
}
else
return withdraw;
}
//return balance;

Answer 1

You return 0 within the switch brackets, ie inside the while loop. Change it so that you return 0 outside of the while loop.