[C++]

I only need help with input validation.

See below.

#include

#include

using namespace std;

// Function declarations (prototypes)

char ** CreateArrayOfSeats (int NumberOfRows, int seats);

void InitializeSeats (char **ArrayOfSeats, int NumberOfRows, int seats);

void DisplayArrayOfSeats (char **ArrayOfSeats, int NumberOfRows, int seats);

void MemoryCleanup (char **ArrayOfSeats, int NumberOfRows, int seats);

int main(int argc, char* argv[])

{

char **ArrayOfSeats;

int NumberOfRows;

int NumberOfSeats;

char rowSelection; // 1 to max NumberOfRows, input from the user

char seatSelection; // 'A' to max seats, input from the user, convert to a number

int row; // index into ArrayOfSeats, 0 to NumberOfRows-1

int seat; // index into ArrayOfSeats, 0 to seats-1

// get the number of NumberOfRows and seats from the user

cout << "Enter the number of NumberOfRows: ";

cin >> NumberOfRows;

cout << "Enter the number of seats on each row: ";

cin >> NumberOfSeats;

int squareCounter=NumberOfRows*NumberOfSeats;

ArrayOfSeats = CreateArrayOfSeats(NumberOfRows, NumberOfSeats);

InitializeSeats (ArrayOfSeats, NumberOfRows, NumberOfSeats);

DisplayArrayOfSeats (ArrayOfSeats, NumberOfRows, NumberOfSeats);

do

{

cout << endl << "Enter a valid seat selection" << endl << " (example 5F -or- 00 to quit): ";

cin >> rowSelection; // get row from the user

cin >> seatSelection; // get the seat from the user

if (rowSelection=='0')

continue; // skip the rest of the loop

seatSelection = toupper(seatSelection); // convert to upper case

row = rowSelection - '1'; // count from zero to work with the array

seat = seatSelection - 'A'; // convert 'A' to 0, 'B' to 1, 'C' to 2, etc.

//-----------------------------------------------------------------

//------ Complete the rest of the program------

// Verify that a valid row and seat were entered

//-----------------------------------------------------------------

if (ArrayOfSeats[row][seat] == '-')

cout << "The seat you selected has already been taken." << endl;

else

ArrayOfSeats[row][seat] = '-';

DisplayArrayOfSeats (ArrayOfSeats, NumberOfRows, NumberOfSeats);

squareCounter--;

} while (rowSelection != '0'&& squareCounter!=0 );

MemoryCleanup (ArrayOfSeats, NumberOfRows, NumberOfSeats); // return the memory that was allocated

cout << "ALL SEATS TAKEN. Press the ENTER key to continue...";

char buff[100];

cin.getline (buff, 100);

return 0;

}

char **CreateArrayOfSeats (int NumberOfRows, int seats) // ** means pointer to pointers

{

char **ArrayOfSeats;

ArrayOfSeats = new char*[NumberOfRows]; // create an array of pointers for the NumberOfRows

for(int r = 0; r < NumberOfRows; r++)

ArrayOfSeats[r] = new char[seats]; // create an array of seats for each row

return ArrayOfSeats; // return pointer to the array back to the main program

}

void InitializeSeats (char **ArrayOfSeats, int NumberOfRows, int seats)

{

for (int r=0; r

{

for (int s=0; s

ArrayOfSeats[r][s] = 'A' + s; // put 'A' 'B' 'C' etc in each row

}

}

void DisplayArrayOfSeats (char **ArrayOfSeats, int NumberOfRows, int NumberOfSeats)

{

for (int r=0; r

{

cout.width(2);

cout << r+1 << ' '; // Display row numbers starting from 1

for (int s=0; s

cout << ArrayOfSeats[r][s] << ' '; // Display info for each seat

cout << endl; // new line after each row

}

}

void MemoryCleanup (char **ArrayOfSeats, int NumberOfRows, int NumberOfSeats)

{

for (int r=0; r

delete [] ArrayOfSeats[r]; // delete each row of seats individually

delete [] ArrayOfSeats; // delete the row array

}