problem to return string from class function to main

[Vabi]

Hi,
here is ny code for sample assignment. I am getting bank account details first and depending on those details I am going to perform the rest operation on the account. Please go through the code and let me know how to return string from function in one class so that I can use that in main.



I also want declare float balance=0 and rate as 8.0in the variable declaration time but compiler is showing error can anyone suggest better alternative.

#include <iostream>
#include <cmath>

using namespace std;
class Account
{
    public:
    char name[100];
    int acc_num;
    char acc_type[4];
    char getdata()
    {
        cout<<"\nEnter the name of account holder:  ";
        cin>>name;
        cout<<"\nEnter the 4 digit account number:    ";
        cin>>acc_num;
        cout<<"\nEnter account type:(enter 'save' for saving and 'curn' for current account holder):    ";
        cin>>acc_type;
        return acc_type;
    }
};
class Sav_acct:public Account
{
    protected:
    float balance;
    float withdraw_amt;
    float rate;
    float amount;
    public:
    void withdraw()
    {
        if(balance>500)
        {
        cout<<"\nEnter the amount to withdraw:    ";
        cin>>withdraw_amt;
        balance=balance-withdraw_amt;
        }
        else
        {
            cout<<"\nSorry sufficient balance not availbale in your account:";
        }
    }
    void deposit()
    {
        cout<<"\nEnter the amount you want to diposit:    ";
        cin>>amount;
        balance=balance+amount;
    }
    
    void interest()
    {
        int dd,mm,yr;
        float interest;
        cout<<"\nEnter todays date:";
        cin>>dd>>mm>>yr;
       // day_interest=mm*30+dd;
        balance=balance*(pow(1+rate,mm));
        
    }
    void balance_disp()
{
    cout<<"\nAvailable balance in your account is :"<<balance<<endl;
}
    
};
class Cur_acct:public Account
{
    protected:
    float balance,withdraw_amt;
    float rate;
    public:
    int CheckBook()
    {
        int choice;
        cout<<"Enter 1 for check book request:"<<endl;
        cout<<"Enter 2 if you already have a valid checkbook"<<endl;
        cin>>choice;
        return choice;
    }
    void withdraw()
    {
        int amount;
        cout<<"Enter the amount you want to withdraw from your account: ";
        cin>>amount;
        balance=balance-amount;
    }
    void deposit()
    {
        if(balance>500)
        {
        cout<<"\nEnter the amount to withdraw:    ";
        cin>>withdraw_amt;
        balance=balance-withdraw_amt;
        }
        else
        {
            cout<<"Sorry sufficient balance not availbale in your account:"<<endl;
            cout<<"Your Rs.50 is getting deducted as service charges"<<endl;
            balance=balance-50;
        }
    }
    
    void interest()
    {
        int dd,mm,yr;
        float interest;
        cout<<"Enter todays date:";
        cin>>dd>>mm>>yr;
        balance=balance*mm*rate/100;
        
    }
    void balance_disp()
{
    cout<<"Available balance in your account is :"<<balance<<endl;
}
    
};
    

int main()
{
    int a;
   cout << "\nWelcome to HDFC Bank" << endl; 
   Account act;
   Sav_acct sa;
   Cur_acct ca;
   act.getdata();
   if(acc_type='save')
   {
          cout<<"Which operation would you like to perform"<<endl;
       cout<<"Enter the option  1.Withdraw 2.Deposit";
       cin>>a;
       if(a=1)
       {
           sa.withdraw();
           sa.balance_disp();
       }
       else if(a=2)
       {
           sa.deposit();
           sa.balance_disp();
       }
       else
       {
           
       }
   }   
    else if(acc_type='curn') 
    {
        cout<<"Which operation would you like to perform"<<endl;
       cout<<"Enter the option  1.Withdraw 2.Deposit";
       cin>>a;
       if(a=1)
       {
           ca.withdraw();
           ca.balance_disp();
       }
       else if(a=2)
       {
           ca.deposit();
           ca.balance_disp();
       }
       else
       {
           
       }
       
    }   
   
   
   
   return 0;
}

[48T7M4Gy]

This shows how to do it with c-strings and std strings:

#include <iostream>
#include <string>
#include <string.h>

class Name {
    
private:
    char nameChar[100];
    std::string nameString;
    
public:
    Name(const char* aFirst, std::string aSecond)
    {
        strcpy(nameChar, aFirst);
        nameString = aSecond;
    }
    
    char* getNameChar() { return nameChar; }
    std::string getNameString() { return nameString; }
};

int main()
{
    char first[] = "Betty";
    std::string second = "Smith";
    
    Name somebody(first, second);
    
    std::cout << somebody.getNameChar() << std::endl;
    std::cout << somebody.getNameString() << std::endl;
    
    return 0;
}

[AbstractionAnon]

Line 19: You're trying to return a pointer to a local variable. Function is expecting a char to be returned.

Line 128,148: act_type is undefined. Did you mean to refer to the member variable of an Account instance?

Line 128,133,138,148,153,158: You're using the assignment operator (=), not the comparison operator (==).

Line 128, 148: You can't compare C-strings that way. You should use C++ std::string.

Lines 80-101: You appear to have the deposit() and withdraw() functions reversed.

[Vabi]

thank a lot kemort and AbstractionAnon for your kind help.