how can i solve this error?

[Tayabur Rahman]

#include<iostream>
using namespace std;

class account
{
protected:
char name[40];
int account_id;
int account_type;
float initial_deposit;
public:

float withdraw;
float balance;
account();
void deposit()
{
float deposit;
cout<<"Enter Amount To DEPOSIT:"<<endl;
cin>>deposit;
balance+=deposit;
cout<<"Balance is: $"<<balance<<endl;
}
virtual void withdraw()=0;
};

account::account()
{
cout<<"Enter Account Holder Name:"<<endl;
cin>>name;
cout<<"Enter Account ID"<<endl;
cin>>account_id;
cout<<"Enter ACCOUNT TYPE (DEBIT=1,CREDIT=2)"<<endl;
cin>>account_type;
cout<<"Enter Initial Deposit"<<endl;
cin>>initial_deposit;
balance+=initial_deposit;
}

class debit:public account
{
void deposit();

void withdraw()
{
//float withdraw;
cout<<"Enter Amount To WITHDRAW:"<<endl;
cin>>withdraw;
if(withdraw<=balance)
{
amount-=withdraw;
cout<<"Balance is: $"<<balance<<endl;
}
else
{
cout<<"withdraw failed"<<endl;
cout<<"Balance Is: $"<<balance<<endl;
}
}
};

class credit:public account
{

void deposit();
/*{
cout<<"Enter Amount To DEPOSIT:"<<endl;
cin>>deposit;
balance+=deposit;
cout<<"Balance is: $"<<balance<<endl;
}*/
void withdraw()
{
//float withdraw;
int credit_limit=2000;
cout<<"Enter Amount To WITHDRAW:"<<endl;
cin>>withdraw;
if(withdraw<=(-credit_limit))
{
balance-=withdraw;
cout<<"Balance is: $"<<balance<<endl;
}
else
{
cout<<"withdraw failed"<<endl;
cout<<"Balance Is: $"<<balance<<endl;
}
}
};

int main()
{
int account_type=0;
cout<<"Start"<<endl;
account ob1;
debit ob2;
credit ob3;

account *p;
if(account_type=1) p=&ob2;
else if(account_type=2) p=&ob3;
else cout<<"Invalid Input For ACCOUNT TYPE"<<endl;

p->deposit();
p->withdraw();
return 0;
}

[Tayabur Rahman]

error C2040: 'withdraw' : 'void (void)' differs in levels of indirection from 'float'

[Robert Kulseth]

I found a few problems with your code. The main problem is you have a name collision. You have a method withdraw and a public member variable withdraw in the same class. it's a good practice to prefix all your member variables with either an '_' or an 'm_'. This will fix most of your problems. you had two other errors that were pretty simple to fix. I compiled it on g++, but didn't run it. Also, you should encapsulate your member variables rather than expose them public. That way no one has to see your ugly 'm_' prefix for member variables. Good Luck.