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Expression must have pointer to object type error

rm5393 (13)
Quick question, was wondering if someone could point out how to fix this error when I want to print out my arrays in a setw table?

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 #include <iostream>
#include <fstream>
#include <string>
#include <iomanip>


using namespace std;

const int MAX_SIZE = 10;

typedef int myArray[MAX_SIZE];



ifstream inFile;


void InitializeUser(int& totalBudget, int& totalWeight);
void OpenFile(ifstream& infile, myArray cost, myArray weight);
void PrintName(int id);
bool ItemMenu(myArray cost, myArray weight, myArray quantity, int &totalBudget, int &totalWeight);
bool ValidateInput(const int choice, const myArray cost, const myArray weight, const int totalBudget, const int totalWeight);
void PrintSummary(const myArray quantity, const myArray cost, const int totalBudget, const int totalWeight, const int, const int);

int main()
{
	myArray id,
		cost,
		weight,
		quantity = { 0 };

	int Budget,
		myWeight,
		startingWeight,
		startingBudget;

	InitializeUser(Budget, myWeight);

	startingWeight = myWeight;
	startingBudget = Budget;

	cout << endl << endl;

	OpenFile(inFile, cost, weight);

	inFile.close();

	while (ItemMenu(cost, weight, quantity, Budget, myWeight));

	PrintSummary(quantity, cost, Budget, myWeight, startingBudget, startingWeight);
}

void InitializeUser(int& Budget, int& myWeight)
{
	cout << "Please enter the company's total budget: ";
		cin >> Budget;
	cout << "Now enter the maximum possible total weight: ";
		cin >> myWeight;


}

void OpenFile(ifstream& inFile, myArray cost, myArray weight)
{


	int id, itemCost, itemWeight, i;

	inFile.open("inventory.txt");
	if (!inFile)
	{
		cout << "Error: Data file could not be opened" << endl;
		exit(EXIT_FAILURE);
	}

	for (i = 0; i < 10; i++)

	{
		inFile >> id;
		inFile >> itemCost;
		inFile >> itemWeight;


		cost[i] = itemCost;
		weight[i] = itemWeight;
	


		cout << "ID    Cost      Weight" << endl;
		cout << "----------------------" << endl;

		// print all IDs and corresponding categories
		for (i = 0; i < MAX_SIZE; i++)
		{
			cout << left << setw(10) << i ;
			cout << endl << "    " << itemCost[i] << "      ";
			itemWeight[i];
		}
		


	}


	
}


void PrintName(int id)
{
	switch (id)
	{
	case 0: cout << "computer(s)";
		break;
	case 1: cout << "pencil(s)";
		break;
	case 2: cout << "pen(s)";
		break;
	case 3: cout << "book(s)";
		break;
	case 4: cout << "beer(s)";
		break;
	case 5: cout << "ruler(s)";
		break;
	case 6: cout << "stereo(s)";
		break;
	case 7: cout << "refrigerator(s)";
		break;
	case 8: cout << "desk(s)";
		break;
	case 9: cout << "backpack(s)";
		break;
	}
}

bool ItemMenu(myArray cost, myArray weight, myArray quantity, int &totalBudget, int &totalWeight)
{

	int choice;

	cout << "Budget Remaining $" << totalBudget << endl;
	cout << "Weight Remaining " << totalWeight << " pounds" << endl;

	cout << endl << endl;

	for (int i = 0; i < 10; i++)
	{
		cout << i << ") Buy ";
		PrintName(i);
		cout << "(cost $" << cost[i] << ", weight " << weight[i] << " pounds)" << endl;
	}

	cout << "Please enter your choice: " << endl;

	cin >> choice;

	if (!ValidateInput(choice, cost, weight, totalBudget, totalWeight))
		cout << "Invalid choice." << endl;
	else
	{
		if (choice != 10)
		{
			totalBudget = totalBudget - cost[choice];
			totalWeight = totalWeight - weight[choice];
			quantity[choice]++;
		}
		else
		{
			return false;
		}
	}

	return true;
}

bool ValidateInput(const int choice, const myArray cost, const myArray weight, const int totalBudget, const int totalWeight)
{
	if (cost[choice] > totalBudget)
		return false;
	if (weight[choice] > totalWeight)
		return false;
	if (choice < 0 || choice > 10)
		return false;

	return true;
}

void PrintSummary(const myArray quantity, const myArray cost, const int totalBudget, const int totalWeight, const int startingBudget, const int startingWeight)
{
	cout << "ID" << "    Name" << "        Quantity" << endl;
	cout << "--------------------------" << endl;

	for (int i = 0; i < 10; i++)
	{
		cout << i << "   ";
		PrintName(i);
		cout << "  " << quantity[i] << endl;
	}

	cout << "Total Amount Spent : $ ";
	cout << startingBudget - totalBudget << endl;
	cout << "Amount of Budget Remaining : $ ";
	cout << totalBudget << endl;
	cout << "Total Weight of Items Purchased : " << totalWeight << " pounds" << endl;
}
AbstractionAnon (6954)
if someone could point out how to fix this error

What error?

When referring to an error, please post the exact error message.

What I see is lines 96 and 97, itemcost and itemweight are subscripted, but those items are not arrays (line 67).
Last edited on
rm5393 (13)
I fixed up the errors for lines 96 and 97 but now when I print out my table I get a huge negative number after the first row. What is the way to fix this?

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#include <iostream>
#include <fstream>
#include <string>
#include <iomanip>


using namespace std;

const int MAX_SIZE = 10;

typedef int myArray[MAX_SIZE];



ifstream inFile;


void InitializeUser(int& totalBudget, int& totalWeight);
void OpenFile(ifstream& infile, myArray cost, myArray weight);
void PrintName(int id);
bool ItemMenu(myArray cost, myArray weight, myArray quantity, int &totalBudget, int &totalWeight);
bool ValidateInput(const int choice, const myArray cost, const myArray weight, const int totalBudget, const int totalWeight);
void PrintSummary(const myArray quantity, const myArray cost, const int totalBudget, const int totalWeight, const int, const int);

int main()
{
	myArray id,
		cost,
		weight,
		quantity = { 0 };

	int Budget,
		myWeight,
		startingWeight,
		startingBudget;

	InitializeUser(Budget, myWeight);

	startingWeight = myWeight;
	startingBudget = Budget;

	cout << endl << endl;

	OpenFile(inFile, cost, weight);

	inFile.close();

	while (ItemMenu(cost, weight, quantity, Budget, myWeight));

	PrintSummary(quantity, cost, Budget, myWeight, startingBudget, startingWeight);
}

void InitializeUser(int& Budget, int& myWeight)
{
	cout << "Please enter the company's total budget: ";
		cin >> Budget;
	cout << "Now enter the maximum possible total weight: ";
		cin >> myWeight;


}

void OpenFile(ifstream& inFile, myArray cost, myArray weight)
{


	int id, itemCost, itemWeight, i;

	inFile.open("inventory.txt");
	if (!inFile)
	{
		cout << "Error: Data file could not be opened" << endl;
		exit(EXIT_FAILURE);
	}

	for (i = 0; i < 10; i++)

	{
		inFile >> id;
		inFile >> itemCost;
		inFile >> itemWeight;


		cost[i] = itemCost;
		weight[i] = itemWeight;
	


		cout << "ID    Cost      Weight" << endl;
		cout << "----------------------" << endl;

		// print all IDs and corresponding categories
		for (i = 0; i < 10; i++)
		{
			cout << left << setw(6) << i;
			cout << cost[i] << "      " << weight[i];
			cout << endl;
		}
		
		

	}


	
}


void PrintName(int id)
{
	switch (id)
	{
	case 0: cout << "computer(s)";
		break;
	case 1: cout << "pencil(s)";
		break;
	case 2: cout << "pen(s)";
		break;
	case 3: cout << "book(s)";
		break;
	case 4: cout << "beer(s)";
		break;
	case 5: cout << "ruler(s)";
		break;
	case 6: cout << "stereo(s)";
		break;
	case 7: cout << "refrigerator(s)";
		break;
	case 8: cout << "desk(s)";
		break;
	case 9: cout << "backpack(s)";
		break;
	}
}

bool ItemMenu(myArray cost, myArray weight, myArray quantity, int &totalBudget, int &totalWeight)
{

	int choice;

	cout << "Budget Remaining $" << totalBudget << endl;
	cout << "Weight Remaining " << totalWeight << " pounds" << endl;

	cout << endl << endl;

	for (int i = 0; i < 10; i++)
	{
		cout << i << ") Buy ";
		PrintName(i);
		cout << "(cost $" << cost[i] << ", weight " << weight[i] << " pounds)" << endl;
	}

	cout << "Please enter your choice: " << endl;

	cin >> choice;

	if (!ValidateInput(choice, cost, weight, totalBudget, totalWeight))
		cout << "Invalid choice." << endl;
	else
	{
		if (choice != 10)
		{
			totalBudget = totalBudget - cost[choice];
			totalWeight = totalWeight - weight[choice];
			quantity[choice]++;
		}
		else
		{
			return false;
		}
	}

	return true;
}

bool ValidateInput(const int choice, const myArray cost, const myArray weight, const int totalBudget, const int totalWeight)
{
	if (cost[choice] > totalBudget)
		return false;
	if (weight[choice] > totalWeight)
		return false;
	if (choice < 0 || choice > 10)
		return false;

	return true;
}

void PrintSummary(const myArray quantity, const myArray cost, const int totalBudget, const int totalWeight, const int startingBudget, const int startingWeight)
{
	cout << "ID" << "    Name" << "        Quantity" << endl;
	cout << "--------------------------" << endl;

	for (int i = 0; i < 10; i++)
	{
		cout << i << "   ";
		PrintName(i);
		cout << "  " << quantity[i] << endl;
	}

	cout << "Total Amount Spent : $ ";
	cout << startingBudget - totalBudget << endl;
	cout << "Amount of Budget Remaining : $ ";
	cout << totalBudget << endl;
	cout << "Total Weight of Items Purchased : " << totalWeight << " pounds" << endl;
}
rm5393 (13)
Never mind I figured out on my own thanks anyway.
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