Answered: This lab is to to add another option…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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I have the basis of a program that works as an inventory, it reads the contents of a file and displays them and their quantity in three places, and I need to add in a warning option that will alert that in any of the places the amount of product is below 10.

Lab = This lab is to to add another option for the user to print warnings of any inventory running low. More specifically:
- Add another option to the menu, called W for Warning
- Look at all items, in all locations. If an item has less than 10 left, print out on one line the item name,
location, and quantity.

Pictures included are:

1. How the program currently runs

2. How the program needs to run, with included warning option (My program needs to match this photo)

Contents of the file:

Contents of Inventory.txt

Red delicious apples
1.00 25 6 8 10
Assorted bouquets
4.00 50 10 10 0
Camembert cheese
2.00 25 10 12 4
END

The Program:

//inventory menu gives placement, warning, and exit option
#include <iostream>
#include <fstream>
#include <vector>
using namespace std;

struct Record {
string name;
double cost;
int markup;
int count[3];
};

const string places[3] = {"counter", "shelf", "warehouse"};

bool read_file(vector <Record> &v);
void placement (vector <Record> &v);

int main()
{
vector <Record> invent;
char choice;

if (read_file(invent) == false) {
return 1;
}
cout << "You have " << invent.size() << endl;
while (true)
{
cout << "(P)lacement (E)xit: ";
cin >> choice;
switch(choice) {
case 'P':
case 'p':
placement(invent);
break;
case 'E':
case 'e':
return(0);
break;

default:
cout << choice << " is not a choice\n";
}
}

return 0;
}

void placement (vector <Record> &v)
{
int which = -1;
string input;

cout << "Which? ";
cin >> input;

for (int i = 0; i < 3; i++) {
if (input.substr(0,3) == places[i].substr(0,3)) which = i;
}
if (which == -1) {
cout << "No match\n";

return;
}

cout.setf(ios::left);
cout.unsetf (ios::right);
cout.width(30);
cout << "Item";
cout.setf(ios::right);
cout.width(6);
cout << places[which] << "\n";

int j;
for (j = 0; j < v.size(); j++) {

cout.setf(ios::left);
cout.unsetf (ios::right);
cout.width(30);
cout << v[j].name;
cout.setf(ios::right);
cout.width(6);
cout << v[j].count[which] << endl;

}
}

bool read_file(vector <Record> &v)
{
Record r;
ifstream infile;

infile.open("inventory.txt");
if (infile.fail()) {
cout << "can't open file\n";
return (false);

while (true) {
getline (infile, r.name);
cout << "Read " << r.name << endl;
if (r.name == "END") {
infile.close();
return true;
}

else {
infile >> r.cost >> r.markup;
for (int i = 0; i < 3; i++) infile >> r.count[i];
infile.get();

v.push_back(r);
}
}
return true;
}