Accessing data members of an object from a list - c++

Question

So BCD is a list of objects of another class BankCustomerDetails. BCD is also a data member of a class BankSystem.
Let's say I want to access the second customer's name from the list, something like this:-
BCD[1].Name
But this is not working.
class BankSystem
{
private:
std::list<BankCustomerDetails>BCD;
public:
std::list<BankCustomerDetails> GetBankCustomerDetails();
void SetBankCustomerDetails(std::list<BankCustomerDetails>&);
int GetTotalCustomerCount();
void Create_AddCustomerAccount_BankSystem(BankCustomerDetails&);
bool SearchCustomerDetails_byName(std::string);
bool SearchCustomerDetails_byAccountNumber(unsigned long int);
void UpdateCustomerDetails_byAccountNumber(std::string ,unsigned long int );
void DepositMoney_byAccountNumber(unsigned long int ,double);
void WithdrawMoney_byAccountNumber(unsigned long int , double);
double BalanceInquiryofCustomer_byAccountNumber(unsigned long int );
void DeleteCustomerDetails_byAccountNumber(unsigned long int );
void DisplayAllCustomerDetails();
};
class BankCustomerDetails
{
private:
std::string Name;
unsigned long int Account_Number;
double Account_Balance;
public:
BankCustomerDetails();
BankCustomerDetails(std::string, unsigned long in, double);
std::string GetBankCustomerName();
unsigned long int GetBankCustomerAccount_Number();
double GetBankCustomerAccount_Balance();
void SetBankCustomerName(std::string&);
void SetBankCustomerAccount_Number(unsigned long int&);
void SetBankCustomerAccount_Balance(double&);
void AcceptBankCustomerDetails();
void DisplayBankCustomerDetails();
};
And This is What i want to do:-
At Client.cpp
string nm;
BankSystem BS;
cout<<"Enter The Customer Name to Search Details"<<endl;
cin>>nm;
int flag = BS.SearchCustomerDetails_byName(nm);
At BankSystem.cpp
bool BankSystem::SearchCustomerDetails_byName(std::string name)
{
//Need to Implement
for(int i = 0; i < BCD.size(); i++){
if(BCDName = name)
return true;
}
return false;
}

Answer 1

You cannot access std::list elements with an index and square brackets. I recommend using a std::vector instead of a std::list. Then you can write:
for (int i = 0; i < BCD.size(); i++) {
if (BCD[i].GetBankCustomerName() == name) {
return true;
}
}
Of course you could also do the same thing with a list but then you have to rewrite the loop using an iterator.
std::list<BankCustomerDetails>::iterator iterator;
for (iterator = intList.begin(); iterator != intList.end(); ++iterator)
if (iterator->GetBankCustomerName() == name) {
return true;
}
}
Still I recommend using the vector because it almost always has better performance.
Two more notes:
List itemBCD[i].Name does not work because Nameis private.
The comparison operator is == and not =.