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//bring in our libararies of codes
#include <iostream>// allows input and output information
#include <string>//allows use of string data type
#include<stdio.h>
#include<fstream>//read/write to files
#include <ctime> //time(0)
#include <iomanip>//setprescision()
using namespace std; // allows use of classes and functions
//creates constant values that can not be changed
const int EXIT_VALUE = 5;
const float DAILY_LIMIT = 400.0f;
const string FILENAME = "Wallace_Bank.txt";
//create balance variable
double balance = 0.0;
// prototypes section
int* ptr = nullptr;
double* ptrBalance;
void deposit (double *ptrBalance);
void withdrawal(double* ptrBlance, float dialyLimit); // overloaded method does not take withdrawal amount
void withdrawal(double* ptrBlance, float dialyLimit, float amount); // overloaded method that takes withdrwal amount.
int main() /*Entry point to applications*/
//Make a deposit
{
float deposit = 0.0f;
do
{
cout << "\nEnter deposit amount: ";
cin >> deposit;
if (cin.fail()) //did they give us a character isnsted of a nujmber?
{
cin.clear(); //clears fail state
cin.ignore(INT16_MAX, '\n'); //clears keyboad buffer
cout << "\nError. Please use number only.\n" << endl;
deposit = -1;//set depsit to a "bad" number
continue;//restart the loop.
}
else if (deposit < 0.0f)// check for negative number
cout << "\nError.Invalid deposit amount.\n" << endl;
}
while (deposit < 0.0f);
//to get the double value located at the pinter programer must dereference it using an asterisk!
{
*ptrBalance += deposit; //same as : *ptrBalance =*ptrBlance + deposit;
cout << fixed << setprecision(2) << "\nCurrent ptrBalance: $" << *ptrBalance << endl;//notice the astrisk
}
{
//start of functoin
//look for the starting balance; otherwise generate a randow starting balance
ifstream iFile(FILENAME.c_str());
if (iFile.is_open())//if file opens read the balance
{
iFile >> balance;
iFile.close();
}
else
{
// if it did not open or does not exist create a random number for the starting balance
srand(time(0));
const int MIN = 1000;
const int MAX = 1000;
}
cout << fixed << setprecision(2) << "Starting Balance:$" << balance << endl;
double* ptrBalance = &balance;// double variable pointer ptrBalance set to address of balance variable.
short choice = 0; // larger than or == to choice set to 0.
//start the application loop for short
//get deposit and validat it.
do
{
//show function for do
system("cls");//clears the consol screen
cout << "Menu\n" << endl;
cout << "1) Deposit" << endl;
cout << "2) Withdrawal" << endl;
cout << "3) check Balance" << endl;
cout << "4) Quick $40" << endl;
cout << "5) Exit" << endl;
cout << "\nEnter your choice: ";
cin >> choice;
switch (choice)// run code based on the user's choice
{
case 1:
{
double* deposit(ptrBalance); //passing a pointer so only four bytes have to go across the system bus!
break;
}
case 2:
{
withdrawal(ptrBalance, DAILY_LIMIT); //passing four byte pointer!
break;
}
case 3:
cout << fixed << setprecision(2) << "\nCurrent Balance: $" << balance << endl;
break;
case 4:
withdrawal(ptrBalance, DAILY_LIMIT, 40.0f);
break;
case 5:
cout << "\nGoodbye...." << endl;
break;
default:
{
cout << "\n Error. Please select from the menu." << endl;
break;
}
cout << "\nPress any key to continue....";
break;
int cdel_getch();
}
} while (choice != EXIT_VALUE); //while ture that choice is not equal to EXIT VALUE
///Make a withdrawal- this overload accepts balance, dailyLimits, and withdrwal amouunt
while (choice != EXIT_VALUE);
ofstream oFile(FILENAME.c_str());
oFile << balance << endl;
oFile.close();
}
}
void witdrawal(double* ptrBlance, float dailyLimit, float amount)
//take away from the account and show the balance
{
if (amount > dailyLimit)
{
cout << "\nError.Amount exceeds dail limit." << endl;
}
else if (amount > * ptrBlance) //notice the asterisk to defeference the pointer!
{
cout << "\nError. Insufficient funds." << endl;
}
else
{
*ptrBlance -= amount; //same as: *ptrBlance =*ptrBlance - amount;
cout << "\n Here is your cash; $ " << amount << endl;
}
cout << fixed << setprecision(2) << "\nCurrent Blance:$" << *ptrBlance << endl;
}
void deposit(double* ptrBalance)
{
}
///Make a withdrawal
void withdrawal(double* ptrBlance, float dailyLimit)
{
//get the withdrawal (you should validate this input)
float amount = 0.0f;
cout << "\nEnter withdrawal amount: ";
cin >> amount;
//call the overloaded method version that takes
//the balance,dailyLimit, and withdrawal amount
withdrawal(ptrBlance, dailyLimit, amount);
}
void withdrawal(double* ptrBlance, float dialyLimit, float amount)
{
}
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