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Need help with theater seating problem

Mr Pfister (1)


This is the code i have as of now.

include <iostream>
#include <string>
#include <fstream>
#include <cstdlib>
#include <cmath>
#include <iomanip>
#include <stdlib.h>
#include <conio.h>

using namespace std;
// function prototypes
float menu(int choice, int twoDArray[][30], float oneDArray[], float currentSales);
void loadSeats(int twoDArray[][30]);
void loadPrices(float oneDArray[]);
float displaySeatingChart(float[][30], float oneDArray[]);


//void savePrices(float [ ]) – Saves the current row prices to the file
//“rowPrices.dat”
//void saveSeats(char [ ][30]) – Save the current seating chart to the file
//“seatingChart.dat


int main()
// declaring variable
{
int choice = 0;
float currentSales = 0;
const int ARRAYCOLUMN = 30;
const int ARRAYROWS = 15;




float oneDArray[ARRAYROWS];
int twoDArray[ARRAYROWS][ARRAYCOLUMN];

// trying to load
// loading seats

loadSeats(twoDArray);
loadPrices(oneDArray);


// calling menu
choice = float(menu(currentSales, twoDArray, oneDArray, currentSales));




return 0;
}


float menu(int choice, float twoDArray[][30], float oneDArray[], float currentSales)

{

while (choice != 4)
{


cout << "*** Main Menu ***" << endl;
cout << "*** Sales This Session " << "<$" << currentSales << ">" << "***" << endl;

cout << "1. Display Seating Chart" << endl;
cout << "2. Purchase Tickets" << endl;
cout << "3. Change Ticket Prices" << endl;
cout << "4. Exit" << endl;
cout << "Enter Choice: ";
cin >> choice;


switch (choice)
{
case 1: displaySeatingChart(twoDArray, oneDArray);
break;

case 2:;
break;

case 3:;
break;

case 4: break;

default: cout << "*** Invalid Choice ***" << endl;
system("pause");
system("cls");
}
}


return float(choice);
}

//
void loadSeats(int twoDArray[][30])
{
const int ARRAYCOLUMN = 15;
const int ARRAYROWS = 30;

fstream seatingFile;
seatingFile.open("seatingChart.dat");

if (!seatingFile)
{
cout << "No Seating File Found. . . " << endl;
cout << "Clearing Seating Chart. . . " << endl;
system("pause");
system("cls");
for (int rowNumber = 0; rowNumber < ARRAYROWS; rowNumber++)
for (int columnNumber = 0; columnNumber < ARRAYROWS; columnNumber++)
{
twoDArray[rowNumber][columnNumber] = '#';
}
}
else
{
for (int rowNumber = 0; rowNumber < ARRAYROWS; rowNumber++)
for (int columnNumber = 0; columnNumber < ARRAYROWS; columnNumber++)
{
seatingFile >> twoDArray[rowNumber][columnNumber];
}
seatingFile.close();
}
}



// Loading Row Price File
void loadPrices(float oneDArray[])
{
const int ARRAYROWS = 15;

fstream priceFile;
priceFile.open("rowPrices.dat");

if (!priceFile)
{
cout << "No Price File Found. . . " << endl;
cout << "Setting Default Pricing to <$15 for each row>" << endl;
system("pause");
system("cls");

for (int rowNumber = 0; rowNumber < ARRAYROWS; rowNumber++)
oneDArray[rowNumber] = 15;

}
else
{
for (int rowNumber = 0; rowNumber < ARRAYROWS; rowNumber++)
priceFile >> oneDArray[rowNumber];

priceFile.close();
}
}

float displaySeatingChart(float twoDArray[][30], float oneDArray[])
{
float choice1 = 123;

for (int rownumber = 0; rownumber<15; rownumber++)
cout << "Row " << rownumber + 1 << right << setw(15) << setprecision(2) << oneDArray[rownumber + 1] << endl;

return choice1;
}

The error involves passing a float through an int, but i am having trouble figuring it out.

LNK2019 unresolved external symbol "float_cdecl menu(int,int(*const,float)" (?menu@@YAMHQAY0BO@HQAMM@Z) referenced in function_main
Last edited on
JayhawkZombie (738)
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#include <iostream>
#include <string>
#include <fstream>
#include <cstdlib>
#include <cmath>
#include <iomanip>
#include <stdlib.h>
#include <conio.h>

using namespace std;
// function prototypes
float menu(int choice, int twoDArray[][30], float oneDArray[], float currentSales);
void loadSeats(int twoDArray[][30]);
void loadPrices(float oneDArray[]);
float displaySeatingChart(float[][30], float oneDArray[]);


//void savePrices(float [ ]) – Saves the current row prices to the file 
//“rowPrices.dat”
//void saveSeats(char [ ][30]) – Save the current seating chart to the file 
//“seatingChart.dat


int main()
// declaring variable
{
  int choice = 0;
  float currentSales = 0;
  const int ARRAYCOLUMN = 30;
  const int ARRAYROWS = 15;




  float oneDArray[ARRAYROWS];
  int twoDArray[ARRAYROWS][ARRAYCOLUMN];

  // trying to load 
  // loading seats

  loadSeats(twoDArray);
  loadPrices(oneDArray);


  // calling menu
  choice = float(menu(currentSales, twoDArray, oneDArray, currentSales));




  return 0;
}


float menu(int choice, float twoDArray[][30], float oneDArray[], float currentSales)

{

  while (choice != 4)
  {


    cout << "*** Main Menu ***" << endl;
    cout << "*** Sales This Session " << "<$" << currentSales << ">" << "***" << endl;

    cout << "1. Display Seating Chart" << endl;
    cout << "2. Purchase Tickets" << endl;
    cout << "3. Change Ticket Prices" << endl;
    cout << "4. Exit" << endl;
    cout << "Enter Choice: ";
    cin >> choice;


    switch (choice)
    {
      case 1:	displaySeatingChart(twoDArray, oneDArray);
        break;

      case 2:;
        break;

      case 3:;
        break;

      case 4: break;

      default: cout << "*** Invalid Choice ***" << endl;
        system("pause");
        system("cls");
    }
  }


  return float(choice);
}

// 
void loadSeats(int twoDArray[][30])
{
  const int ARRAYCOLUMN = 15;
  const int ARRAYROWS = 30;

  fstream seatingFile;
  seatingFile.open("seatingChart.dat");

  if (!seatingFile)
  {
    cout << "No Seating File Found. . . " << endl;
    cout << "Clearing Seating Chart. . . " << endl;
    system("pause");
    system("cls");
    for (int rowNumber = 0; rowNumber < ARRAYROWS; rowNumber++)
      for (int columnNumber = 0; columnNumber < ARRAYROWS; columnNumber++)
      {
        twoDArray[rowNumber][columnNumber] = '#';
      }
  } else
  {
    for (int rowNumber = 0; rowNumber < ARRAYROWS; rowNumber++)
      for (int columnNumber = 0; columnNumber < ARRAYROWS; columnNumber++)
      {
        seatingFile >> twoDArray[rowNumber][columnNumber];
      }
    seatingFile.close();
  }
}



// Loading Row Price File
void loadPrices(float oneDArray[])
{
  const int ARRAYROWS = 15;

  fstream priceFile;
  priceFile.open("rowPrices.dat");

  if (!priceFile)
  {
    cout << "No Price File Found. . . " << endl;
    cout << "Setting Default Pricing to <$15 for each row>" << endl;
    system("pause");
    system("cls");

    for (int rowNumber = 0; rowNumber < ARRAYROWS; rowNumber++)
      oneDArray[rowNumber] = 15;

  } else
  {
    for (int rowNumber = 0; rowNumber < ARRAYROWS; rowNumber++)
      priceFile >> oneDArray[rowNumber];

    priceFile.close();
  }
}

float displaySeatingChart(float twoDArray[][30], float oneDArray[])
{
  float choice1 = 123;

  for (int rownumber = 0; rownumber < 15; rownumber++)
    cout << "Row " << rownumber + 1 << right << setw(15) << setprecision(2) << oneDArray[rownumber + 1] << endl;

  return choice1;
}


Perhaps these will be a hint:
main.cpp(42): warning C4244: 'argument': conversion from 'float' to 'int', possible loss of data
main.cpp(42): warning C4244: '=': conversion from 'float' to 'int', possible loss of data

Your function returns a float but you're trying to store it in an int.

You have another problem, however, that I am surprised visual studio is not informing you of. You are going to overrun your array.

main.cpp(110): error C4789: buffer 'twoDArray' of size 1800 bytes will be overrun; 3600 bytes will be written starting at offset 0


And there's no need for you to include conio. Don't. Let it die.
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