[C++ 프로젝트] 은행계좌 관리 프로그램 Part. 03

Account 클래스에 깊은 복사를 진행하는 복사 생성자를 정의한다.

 

Account 클래스에 깊은 복사를 진행하는 복사 생성자를 정의하면서, 복사 생성자가 호출되지는 않지만 깊은 복사를 원칙으로 정하고 복사 생성자를 추가한다.

 

	Account(const Account& ref)
		:accID(ref.accID), balance(ref.balance)
	{
		cusName = new char[strlen(ref.cusName) + 1];
		strcpy_s(cusName,strlen(ref.cusName)+1,ref.cusName);
	}

---

#include <iostream>
#include <cstring>
#include <string>

using namespace std;
const int NAME_LEN = 20;

void ShowMenu(void);		//메뉴출력
void MakeAccount(void);		//계좌개설을 위한 함수
void DespositMoney(void);	//입금
void WithdrawMoney(void);	//출금
void ShowAllAccInfo(void);	//잔액조회

enum { MAKE = 1, DEPOSIT, WITHDRAW, INQUIRE, EXIT };

class Account
{
private:
	int accID;		//계좌번호
	int balance;	//잔 액
	char* cusName;	//고객이름

public:
	Account(int ID, int money, char* name)
		:accID(ID), balance(money)
	{
		cusName = new char[strlen(name) + 1];
		strcpy_s(cusName, strlen(name) + 1, name);
	}

	Account(const Account& ref)
		:accID(ref.accID), balance(ref.balance)
	{
		cusName = new char[strlen(ref.cusName) + 1];
		strcpy_s(cusName,strlen(ref.cusName)+1,ref.cusName);
	}

	int GetAccID() { return accID; }

	void Deposit(int money)
	{
		balance += money;
	}

	int Withdraw(int money) //출금액 반환, 부족 시 0 반환
	{
		if (balance < money)
		{
			return 0;
		}
		balance -= money;
		return money;
	}

	void ShowAccInfo()
	{
		cout << "계좌ID: " << accID << endl;
		cout << "이  름: " << cusName << endl;
		cout << "잔  액: " << balance << endl;
	}

	~Account()
	{
		delete[]cusName;
	}
};

Account* accArr[100]; //Account 저장을 위한 배열
int accNum = 0;

int main(void)
{
	int choice;

	while (1)
	{
		ShowMenu();
		cout << "선택 : ";
		cin >> choice;
		cout << endl;

		switch (choice)
		{
		case MAKE:
			MakeAccount();
			break;
		case DEPOSIT:
			DespositMoney();
			break;
		case WITHDRAW:
			WithdrawMoney();
			break;
		case INQUIRE:
			ShowAllAccInfo();
			break;
		case EXIT:
			for (int i = 0; i < accNum; i++)
			{
				delete accArr[i];
			}
			return 0;
		default:
			cout << "Illegal selection.." << endl;
		}
	}
	return 0;
}

void ShowMenu(void)
{
	cout << "-----Menu-----" << endl;
	cout << "1. 계좌개설" << endl;
	cout << "2. 입 금" << endl;
	cout << "3. 출 금" << endl;
	cout << "4. 계좌정보 전체 출력" << endl;
	cout << "5. 프로그램 종료" << endl;
}

void MakeAccount(void) {
	int id;
	char name[NAME_LEN];
	int balance;

	cout << "[계좌개설]" << endl;
	cout << "계좌ID: "; cin >> id;
	cout << "이  름: "; cin >> name;
	cout << "입금액: "; cin >> balance;
	cout << endl;

	accArr[accNum++] = new Account(id, balance, name);
}
void DespositMoney(void) {
	int money;
	int id;

	cout << "[입 금]" << endl;
	cout << "계좌ID: "; cin >> id;
	cout << "입금액 : "; cin >> money;

	for (int i = 0; i < accNum; i++)
	{
		if (accArr[i]->GetAccID() == id)
		{
			accArr[i]->Deposit(money);
			cout << "입금완료" << endl << endl;
			return;
		}
	}
	cout << "유효하지 않은 ID입니다." << endl << endl;
}
void WithdrawMoney(void) {
	int money;
	int id;
	cout << "[출 금]" << endl;
	cout << "계좌ID: "; cin >> id;
	cout << "출금액: "; cin >> money;

	for (int i = 0; i < accNum; i++)
	{
		if (accArr[i]->GetAccID() == id)
		{
			if (accArr[i]->Withdraw(money) == 0)
			{
				cout << "잔액부족" << endl << endl;
				return;
			}

			cout << "출금완료" << endl << endl;
			return;
		}
	}
	cout << "유효하지 않은 ID 입니다." << endl << endl;
}
void ShowAllAccInfo(void) {
	for (int i = 0; i < accNum; i++)
	{
		accArr[i]->ShowAccInfo();
		cout << endl;
	}
}