C++ 线程 1：EXC_BAD_ACCESS（代码=1，地址=0x8

Question

这是我的 class bankAccount 的实施文件。因此，出于某种原因，错误消息一直指出我的函数 getAccountNumber() 其中 "return accountNumber" 是问题所在。我在这个程序中还有其他 classes，但我不知道为什么它特别指出 "return accountNumber" 命令是问题所在。我尝试在我的 main 函数中首先用 nullptr 为我的数组的每个元素初始化我的指针数组，但这似乎没有用。任何帮助将不胜感激。

//
//  impBankAccount.cpp
//  Project 3 Bank Account
//
//  Created by user on 10/20/18.
//  Copyright © 2018 user. All rights reserved.
//

#include <stdio.h>
#include <string>
#include <iomanip>
#include "bankAccount.h"
#include <iostream>


bankAccount :: bankAccount (string n, int acctNumber, double bal){

    name = n;
    accountNumber = acctNumber;
    balance = bal;

}

int bankAccount :: getAccountNumber(){
    return accountNumber;
}

double bankAccount:: getBalance() {
    return balance;
}

string bankAccount:: getName() {
    return name;
}

void bankAccount:: setName(string k){
    name = k;
}

void bankAccount:: withdraw(double k) {
    balance -= k;

    toString = to_string(k);
    toString.erase (toString.find_last_not_of('0') + 3, string::npos );

    transactionsHistory[currentMonth] += "Withdrawal made: $" + toString + "\n";

}

void bankAccount:: deposit(double l){
    balance += l;

    toString = to_string(l);
    toString.erase (toString.find_last_not_of('0') + 3, string::npos );

    transactionsHistory[currentMonth] += "Deposit Made: $" + toString + "\n";
}

void bankAccount:: print() {
    cout << "Name: " << name << endl;
    cout << "Account Balance: " << balance << endl ;
    cout << "Account Number: " << accountNumber << endl;
}

void bankAccount:: setCurrentMonth(int month){
    currentMonth = month;
}


string bankAccount :: getAccountType(){
    return "Bank Account";
}

bankAccount :: ~bankAccount() {


}

这是我的主文件代码：

#include <iostream>
#include <iomanip>


#include "bankAccount.h"
#include "savingsAccount.h"
#include "highInterestSavings.h"
#include "noServiceChargeChecking.h"
#include "serviceChargeChecking.h"
#include "highInterestChecking.h"
#include "certificateOfDeposit.h"
#include "checkingAccount.h"

void program(bankAccount *[]);
int getAccount(bankAccount *[], int);


/*
 Account Types:

 Bank Account
 Checking
 Service Charge Checking
 Checking with no service charge
 High Interest Checking
 Certificate of Deposit
 Savings
 High Interest Savings



 */

using namespace std;

int main()
{
    bankAccount *accountsList[6];


    program(accountsList);



    accountsList[0] = new savingsAccount("Bill", 10200, 2500);
    accountsList[1] = new highInterestSavings("Susan", 10210, 2000);
    accountsList[2] = new noServiceChargeChecking("John", 20100,3500);
    accountsList[3] = new serviceChargeChecking("Ravi", 30100, 1800);
    accountsList[4] = new highInterestChecking("Sheila", 20200, 6000);
    accountsList[5] = new certificateOfDeposit("Hamid", 51001, 18000, 0.075, 18);

}
void program(bankAccount *accountList[]){



    int acct = 0;
    int num = 0;




    cout << "What is your account number?";
    cin >> acct;
    num = getAccount(accountList, acct);

    cout << "Welcome to your " << accountList[num]->getAccountType() << " account!";
} // END MAIN

int getAccount(bankAccount *accountList[], int acct){

    int num = 0;

    for(int i =0; i<6; i++){
        if (accountList[i]->getAccountNumber() == acct) {
        num = i;
        break;
        }
    }
    return num;
}

Answer 1

因为在 getAccount 中调用 accountsList[i]->getAccountNumber 时 accountsList 未初始化。

也许您打算先填充它，然后调用program?

C++ 线程 1：EXC_BAD_ACCESS（代码=1，地址=0x8

C++ THREAD 1: EXC_BAD_ACCESS(code=1, address =0x8

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