我很难搞清楚这一点。到目前为止，我的项目中的其他所有内容都在工作，但是当我尝试添加到我的对象数组时，它会崩溃。我得到一个无法读取字符串的错误。这是消息，我尝试过很多东西。这是错误，它在SetNewAccountInfo（）函数输入后崩溃。我是编程新手，希望这段代码在这里格式化。这是一个学校项目，所以我不是要求答案，也许只是解释为什么我无法以外行的方式添加到我的阵列中。指针等等到目前为止令人困惑。
static _Elem *__CLRCALL_OR_CDECL copy(_Elem *_First1, const _Elem *_First2, size_t _Count)
{ // copy [_First2, _First2 + _Count) to [_First1, ...)
**return (_Count == 0 ? _First1** : (_Elem *)_CSTD memcpy(_First1, _First2, _Count));
}
// TestClassC.cpp : main project file.
#include "stdafx.h"
#include "BankClassType.h"
#include <iostream>
#include <conio.h>
#include <string>
#include <ostream>
using namespace std;
void MainMenu(BankClassType bo[],int num, int cAcct);
void AcctOptionsMenu(BankClassType bo[], int num, int cAcct);
int SetNewAccountInfo();
void PrintAccountInfo();
void AccountDeposit();
void AccountWithdrawal();
int main()
{
const int num = 4;
BankClassType *bo = new BankClassType[num];
BankClassType b;
BankClassType bo0("12345", 'P', "Gates", "Bill", 175253.99, 6875250.23);
BankClassType bo1("12346", 'R', "Jones", "Tommy", 845.21, 2700.00);
BankClassType bo2("12347", 'P', "Asimov", "Isaac", 300.67, 14750.29);
bo[0] = bo0;
bo[1] = bo1;
bo[2] = bo2;
int cAcct = 3;
b.MainMenu(bo, num, cAcct);
_getch();
return 0;
}
//BankClassType.h File
#pragma once
#include "stdafx.h"
#include <iostream>
#include <conio.h>
#include <string>
#include <ostream>
#ifndef BankClassType_h
#define BankClassType_h
using namespace std;
class BankClassType
{
private:
string AccountNumber;
string FirstName;
string LastName;
double CheckingBalance;
double SavingsBalance;
char AccountType;
public:
BankClassType()
{
FirstName = "";
LastName = "";
AccountNumber = "";
AccountType = 'p';
CheckingBalance = 0;
SavingsBalance = 0;
}
BankClassType(string acctNumber, char acctType, string lname, string fname, double cBal, double sBal);
//~BankClassType();
void SetNewAccountInfo(BankClassType bo[], int num, int cAcct);
void PrintAccountInfo();
void AccountDeposit(BankClassType bo[], int number, int num, int cAcct);
void AccountWithdrawal(BankClassType bo[], int number, int num, int cAcct);
void AcctOptionsMenu(BankClassType bo[], int num, int cAcct);
void MainMenu(BankClassType bo[], int num, int cAcct);
//void ExistingAccounts(string acctNumber, char acctType, string lname, string fname, double cBal, double sBal);
string getAccountNumber()
{
return AccountNumber;
}
char getAccountType()
{
return AccountType;
}
double getCheckingBalance(double amount)
{
CheckingBalance = CheckingBalance + amount;
return CheckingBalance;
}
double getSavingsBalance(double amount)
{
SavingsBalance = SavingsBalance + amount;
return SavingsBalance;
}
double getWithdrawalCheckingBalance(double amount)
{
CheckingBalance = CheckingBalance - amount;
return CheckingBalance;
}
double getWithdrawalSavingsBalance(double amount)
{
SavingsBalance = SavingsBalance - amount;
return SavingsBalance;
}
string getFirstName()
{
return FirstName;
}
string getLastName()
{
return LastName;
}
};
#endif
//BankClassImp.cpp
#include "stdafx.h"
#include "BankClassType.h"
#include <iostream>
#include <conio.h>
#include <string>
#include <ostream>
using namespace std;
BankClassType::BankClassType(string acctNumber, char acctType, string lname, string fname, double cBal, double sBal)
{
AccountNumber = acctNumber;
AccountType = acctType;
LastName = lname;
FirstName = fname;
CheckingBalance = cBal;
SavingsBalance = sBal;
/*cout << "\nName: " << LastName << ", " << FirstName;
cout << "\nAccountNumber: " << AccountType << AccountNumber;
cout << "\nChecking Balance: " << CheckingBalance;
cout << "\nSavings Balance: " << SavingsBalance<<endl;
*/
}
/*BankClassType::~BankClassType()
{
delete[] FirstName;
delete[] LastName;
delete[] AccountNumber;
delete[] AccountType;
}*/
void BankClassType::SetNewAccountInfo(BankClassType bo[], int num, int cAcct)
{
//BankClassType * bt = new BankClassType;
BankClassType c;
string fName;
string acctNum;
string lName;
char accType;
double cBal, sBal;
if (cAcct >= 5)
{
"Sorry the accounts are currently full, press any key to return to main menu: ";
c.MainMenu(bo, num, cAcct);
_getch();
}
else
cout << "\nEnter the 5 digit account number: "; cin >> acctNum;
cout << "\nEnter the account type (p) or (r): "; cin >> accType;
cout << "\nEnter the first name: "; cin >> fName;
cout << "\nEnter the last name: "; cin >> lName;
cout << "\nEnter the checking balance: "; cin >> cBal;
cout << "\nEnter the savings balance: "; cin >> sBal;
BankClassType bo3(acctNum, accType, lName, fName, cBal, sBal);
bo[cAcct + 1] = bo3;
}
void BankClassType::PrintAccountInfo()
{
cout << "Name: " << LastName << ", " << FirstName;
cout << "\nAccountNumber: " << AccountType << AccountNumber;
cout << "\nChecking Balance: " << CheckingBalance;
cout << "\nSavings Balance: " << SavingsBalance << endl << endl;
}
void BankClassType::AccountDeposit(BankClassType bo[], int number, int num, int cAcct)
{
int choice;
BankClassType b;
cout << "\nEnter 1 for checking or 2 for savings: ";
cin >> choice;
if (choice == 1)
{
double amount;
cout << "Enter amount to deposit into checking: " << endl;
cin >> amount;
bo[number].getCheckingBalance(amount);
cout << "You added $" << amount << " to checking account number " << bo[number].getAccountNumber();
_getch();
b.MainMenu(bo, num, cAcct);
}
else if (choice == 2)
{
double amount;
cout << "Enter amount to deposit into savings: " << endl;
cin >> amount;
bo[number].getSavingsBalance(amount);
cout << "You added $" << amount << " to savings number" << bo[number].getAccountNumber();
_getch();
b.MainMenu(bo, num, cAcct);
}
else
{
cout << "Incorrect Input, try again: ";
_getch();
AccountDeposit(bo, number, num, cAcct);
}
}
void BankClassType::AccountWithdrawal(BankClassType bo[], int number, int num, int cAcct)
{
int choice;
BankClassType b;
cout << "\nEnter 1 for checking or 2 for savings: ";
cin >> choice;
if (choice == 1)
{
double amount;
cout << "Enter amount to withdrawal from checking: " << endl;
cin >> amount;
bo[number].getWithdrawalCheckingBalance(amount);
cout << "You withdrew $" << amount << " from checking account number " << bo[number].getAccountNumber();
cout << "\nPress any key to return to main menu: ";
_getch();
b.MainMenu(bo, num, cAcct);
}
else if (choice == 2)
{
double amount;
cout << "Enter amount withdrawal from savings: " << endl;
cin >> amount;
bo[number].getWithdrawalSavingsBalance(amount);
cout << "You withdrew $" << amount << " from savings account number " << bo[number].getAccountNumber();
_getch();
b.MainMenu(bo, num, cAcct);
}
else
{
cout << "Incorrect Input, try again";
_getch();
AccountDeposit(bo, number, num, cAcct);
}
}
void BankClassType::MainMenu(BankClassType bo[], int num, int cAcct)
{
cout << "\nWelcome, here are the current accounts on file:\n" << endl;
for (int i = 0; i < cAcct; i++)
{
cout << i + 1 << "--";
bo[i].PrintAccountInfo();
}
int choice;
BankClassType b;
cout << "Enter number (1-5) of account you wish to make changes\n Enter 6 to add an account\nEnter 7 to exit\n --->";
cin >> choice;
if (choice < 6)
b.AcctOptionsMenu(bo, num, cAcct);
else if (choice == 6)
{
bo[cAcct + 1].SetNewAccountInfo(bo, num, cAcct);
cout << "You have successfully added an account!" << endl;
_getch();
cAcct++;
b.MainMenu(bo, num, cAcct);
}
else if (choice == 7)
{
cout << "You have exited, press any key to continue: ";
_getch();
system("cls");
}
else if(choice > 7)
{
cout << "Not a valid input, press a key to try again: ";
_getch();
system("cls");
MainMenu(bo, num, cAcct);
}
}
void BankClassType::AcctOptionsMenu(BankClassType bo[], int num, int cAcct)
{
char choice;
int check = 0;
int count = 0;
int number;
BankClassType b;
while (check == 0) {
cout << "\t\t\n\n" << "Main Menu";
cout << "\t\n\n" << "Select by letter:";
cout << "\t\n" << "(d) - Deposits";
cout << "\t\n" << "(w) - Withdrawals";
cout << "\t\n" << "(s) - Show Account Information.";
cout << "\t\n" << "(q) - Quit Program.\n\n";
cout << "\t" << "Choice: ";
choice = _getche();
switch (choice) {
case 'd':
case 'D':
system("cls");
cout << "\nChoose Account:\n ";
for (int i = 0; i < cAcct; i++) cout << i +1 << "---" << bo[i].getAccountNumber()<< "\n\n" ;
cin >> number;
bo[number].AccountDeposit(bo,number, num, cAcct);
system("cls");
break;
case 'w':
case 'W':
system("cls");
cout << "\nChoose Account:\n ";
for (int i = 0; i < cAcct; i++) cout << i + 1<< "---" << bo[i].getAccountNumber() << "\n\n";
cin >> number;
bo[number].AccountWithdrawal(bo, number, num, cAcct);
system("cls");
break;
case 's':
case 'S':
system("cls");
cout << "\nChoose Account:\n ";
for (int i = 0; i < cAcct; i++) cout << i + 1 << "---" << bo[i].getAccountNumber() << "\n\n";
cin >> number;
bo[number].PrintAccountInfo();
_getche();
system("cls");
break;
case 'q':
case 'Q':
check = 1;
break;
default:
cout << "\nInvalid selection. Press a key to return to main menu.";
_getche();
}
if (check == 1)
break;
}
}
答案 0 :(得分：1)
看起来在main中分配的数组太短了。你分配一个4个元素的块，传递'3'作为cAcct，然后bo [cAcct + 1] = bo3。索引将是4，即一次通过数组的结尾。结果未定义且可能发生崩溃