#include //for printf and scanf #include //for tolower function //function prototypes void Greeting(); //welcome the user to the gas station app void ViewAndGetSelection(char* selectionPtr); //input: the user's selection (input/output parameter) //display the program options and get the users selection //use an input/output parameter for the selection void ProcessSelection(char selection, double* balancePtr); //input: the user's selection by copy (input parameter) //input: the account balance (input/output parameter) //display a message that the selection has been entered //display the balance when the user enters 'b' //allow the user to add money to the account when the user enters 'u' int main() { char choiceInMain; double balanceInMain = 0.00; //call the greeting function //view and get the selection - function call //change the selection to lower or upper case //make sure the user did not enter q to quit while (choiceInMain != 'q') { //process the selection //view and get the next selection //change the selection to lower or upper case } //say goodbye to the user // do not forget to return SUCCESS } //function definitions void Greeting() //welcome the user to the coffee shop { printf("Welcome to the fuel app\n"); printf("We offer convenient gas purchasing\n"); } void ViewAndGetSelection(char* selectionPtr) //input: the user's selection (input/output parameter) //display the program options and get the users selection //use an input/output parameter for the selection { } void ProcessSelection(char selection, double* balancePtr) //input: the user's selection by copy (input parameter) //input: the account balance (input/output parameter) //display a message that the selection has been entered //display the balance when the user enters 'b' //allow the user to add money to the account when the user enters 'u' { if (selection == 'g') { printf("\n----------------------------------\n"); printf("You selected %c\n", selection); printf("Here you will display the gas prices\n"); printf("----------------------------------\n"); } //add the rest of the conditions }

I need help making this C program which uses pointers. 

#include<stdio.h> //for printf and scanf

#include<ctype.h> //for tolower function

//function prototypes

void Greeting();

//welcome the user to the gas station app

void ViewAndGetSelection(char* selectionPtr);

//input: the user's selection (input/output parameter)

//display the program options and get the users selection

//use an input/output parameter for the selection

void ProcessSelection(char selection, double* balancePtr);

//input: the user's selection by copy (input parameter)

//input: the account balance (input/output parameter)

//display a message that the selection has been entered

//display the balance when the user enters 'b'

//allow the user to add money to the account when the user enters 'u'

int main()

{

char choiceInMain;

double balanceInMain = 0.00;

//call the greeting function

//view and get the selection - function call

//change the selection to lower or upper case

//make sure the user did not enter q to quit

while (choiceInMain != 'q')

{

//process the selection

//view and get the next selection

//change the selection to lower or upper case

}

//say goodbye to the user

// do not forget to return SUCCESS

}

//function definitions

void Greeting()

//welcome the user to the coffee shop

{

printf("Welcome to the fuel app\n");

printf("We offer convenient gas purchasing\n");

}

void ViewAndGetSelection(char* selectionPtr)

//input: the user's selection (input/output parameter)

//display the program options and get the users selection

//use an input/output parameter for the selection

{

}

void ProcessSelection(char selection, double* balancePtr)

//input: the user's selection by copy (input parameter)

//input: the account balance (input/output parameter)

//display a message that the selection has been entered

//display the balance when the user enters 'b'

//allow the user to add money to the account when the user enters 'u'

{

if (selection == 'g')

{

printf("\n----------------------------------\n");

printf("You selected %c\n", selection);

printf("Here you will display the gas prices\n");

printf("----------------------------------\n");

}

//add the rest of the conditions

}