Using a pointer in another function - Bank Program - c

Question

I have a quick question about this code that I am writing. Referring to void RunBankMenu(int *choice) and void TransactionDecision(...), how would I use the value acquired from RunBankMenu(Choice) to set a if/else or switch statement for TransactionDecision? For example, if a user selects 1, the TransactionDecision function will use the batch of code I set the switch too. How would I pass the pointer to another function so I can read the value?
Thanks!
#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#define MAXCREDIT -4500
void RunBankMenu(int *choice);
void Greeting();
void AccountBalance(double account, char letter);
void TransactionDecision(int num, double *cPtr, double *sPtr, double *xPtr);
void DepositMoney(double *accountPtr);
void WithdrawMoney(double *accountPtr, char letter);
int main()
{
double checkings = 430.00;
double savings = 812.00;
double credit = -2254.00;
int NumberChoice = 0;
Greeting();
AccountBalance(checkings, savings, credit);
RunBankMenu(&NumberChoice);
printf("%d", NumberChoice);
}
void Greeting()
{
printf("Welcome to the Bank of COP 2220\n\nIt is a pleasure to manage"
" your checking, savings, and credit accounts\n");
}
void AccountBalance(double account, char letter)
{
double checkings = 430.00;
double savings = 812.00;
double credit = -2254.00;
printf("-- You currently have $%.2f in your checking account\n",checkings);
printf("-- You currently have $%.2f in your savings account\n",savings);
printf("-- You currently have $%.2f credit balance\n", credit);
}
void RunBankMenu(int *choice)
{
do{
printf("-----------------------------\n");
printf("(1) to DEPOSIT to CHECKING\n");
printf("(2) to WITHDRAW from CHECKING\n");
printf("(3) to DEPOSIT to SAVINGS\n");
printf("(4) to WITHDRAW from SAVINGS\n");
printf("(5) to DEPOSIT to CREDIT\n");
printf("(6) to TAKE an ADVANCE from CREDIT\n");
printf("(7) to TRANSFER MONEY BETWEEN ACCOUNTS\n");
printf("(8) for all ACCOUNT BALANCES\n");
printf("\n(9) QUIT\n\n");
printf("Select an option: ");
scanf("%d", &*choice);
} while (*choice <= 8);
}
void TransactionDecision(int num, double *cPtr, double *sPtr, double *xPtr)
{
int num1;
}
void DepositMoney(double *accountPtr)
{
}
void WithdrawMoney(double *accountPtr, char letter)
{
}

Answer 1

Perhaps this code will get you started...
#include <stdio.h>
typedef struct accounts_S
{
double checkings;
double savings;
double credit;
} accounts_T;
void DepositMoney(double *accountPtr)
{
}
void WithdrawMoney(double *accountPtr)
{
}
void TransferBetweenAccounts(accounts_T *accounts)
{
}
void AccountBalance(
accounts_T *I__accounts
)
{
printf("-- You currently have $%.2f in your checking account\n", I__accounts->checkings);
printf("-- You currently have $%.2f in your savings account\n", I__accounts->savings);
printf("-- You currently have $%.2f credit balance\n", I__accounts->credit);
return;
}
void TransactionDecision(int NumberChoice, accounts_T *accounts)
{
switch(NumberChoice)
{
case 1:
DepositMoney(&accounts->checkings);
break;
case 2:
WithdrawMoney(&accounts->checkings);
break;
case 3:
DepositMoney(&accounts->savings);
break;
case 4:
WithdrawMoney(&accounts->savings);
break;
case 5:
DepositMoney(&accounts->credit);
break;
case 6:
WithdrawMoney(&accounts->credit);
break;
case 7:
TransferBetweenAccounts(accounts);
break;
case 8:
AccountBalance(accounts);
break;
}
return;
}
void Greeting()
{
printf("Welcome to the Bank of COP 2220\n"
"\n"
"It is a pleasure to manage your checking, savings, and credit accounts\n"
);
return;
}
void RunBankMenu(
int *choice
)
{
printf("-----------------------------\n");
printf("(1) to DEPOSIT to CHECKING\n");
printf("(2) to WITHDRAW from CHECKING\n");
printf("(3) to DEPOSIT to SAVINGS\n");
printf("(4) to WITHDRAW from SAVINGS\n");
printf("(5) to DEPOSIT to CREDIT\n");
printf("(6) to TAKE an ADVANCE from CREDIT\n");
printf("(7) to TRANSFER MONEY BETWEEN ACCOUNTS\n");
printf("(8) for all ACCOUNT BALANCES\n");
printf("\n(9) QUIT\n\n");
do {
printf("Select an option: ");
scanf("%d", choice);
} while((0 == *choice) && (*choice > 9));
return;
}
int main()
{
int rCode = 0;
int NumberChoice;
accounts_T accounts =
{
.checkings = 430.00,
.savings = 812.00,
.credit = -2254.00
};
Greeting();
AccountBalance(&accounts);
do {
RunBankMenu(&NumberChoice);
TransactionDecision(NumberChoice, &accounts);
} while(9 != NumberChoice);
return(rCode);
}