Have the code, need comments. #include <iostream> #include <string> #include <fs

Question

Have the code, need comments.

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

using namespace std;

struct FootballPlayer
{
    char name[30];
    char pos[3];
    int tds;
    int ctch;
    int pass;
    int rec;
    int rush;
};

void printData(FootballPlayer players[], int size);
void writeDataToFile(FootballPlayer players[], int size);
int searchNameStr(FootballPlayer players[], int size, const string& searchName);

int main( )
{
    struct FootballPlayer players[10];
    int i = 0;
    ifstream infile;
    //Reading data from file
    infile.open("input.txt");

    while (!infile.eof())
    {
        infile >> players[i].name;
        infile >> players[i].pos;
        infile >> players[i].tds;
        infile >> players[i].ctch;
        infile >> players[i].pass;
        infile >> players[i].rec;
        infile >> players[i].rush;
        i++;
    }

    i--;
    infile.close();

    int ch;
    string searchName;
    bool found = false;
    int index;
    int j;
    string pos;

    while(true)
    {
        cout << " =====Inventory Management=====" << endl;
        cout << "1. Print data" << endl;
        cout << "2. Search record" << endl;
        cout << "3. Update Record" << endl;
        cout << "4. Exit" << endl;
        cin >> ch;
        switch(ch)
        {
        case 1:
            printData(players, i);
            break;
        case 2:
            cout << "Enter player name to Search: " << endl;
            cin >> searchName;

            index = searchNameStr(players, i, searchName);
            if(index != -1)
            {
               cout <<"Name" << " "
                   << "Pos." << " "
                   << "TDs" << " "
                   << "Ca." << " "
                   << "Pas.Yds" << " "
                   << "Rec.Yds" << " "
                   << "Rus.Yds" << endl;

                cout << players[index].name << " "
                    << players[index].pos << " "
                    << players[index].tds << " "
                    << players[index].ctch << " "
                    << players[index].pass << " "
                    << players[index].rec << " "
                    << players[index].rush << endl;
            }
            else
            {
                cout << "Record not found!" << endl;
            }
            break;
        case 3:
            cout << "Enter player name to upate date: " << endl;
            cin >> searchName;
            if(index != -1)
            {
                cout << "Enter position to update: " << endl;
                cin >> pos;
                players[index].pos == pos;
              
                cout << "Player details updated successfully!" << endl;
            }

            else
            {
                cout << "Record not found!" << endl;
            }
            break;
        case 4:
            break;
        default:
            cout << "Invalid Choice" << endl;
        }
        if (ch == 4)
            break;
    }
    writeDataToFile(players, i);
    cout << "Thank You!" << endl;
return 0;
}

void printData(FootballPlayer players[], int size)
{
    cout << "----------------Players data---------------------------------------------------" << endl;
    cout <<"Name" << " " <<
       "Pos." << " " <<
       "TDs" << " " <<
       "Ca." << " " <<
       "Pas.Yds" << " " <<
       "Rec.Yds" << " " <<
       "Rus.Yds" << endl;
   cout << "-------------------------------------------------------------------------------" << endl;
    for(int j = 0; j < size; j++)
    {
        cout << players[j].name << " "
            << players[j].pos << " "
            << players[j].tds << " "
            << players[j].ctch << " "
            << players[j].pass << " "
            << players[j].rec << " "
            << players[j].rush << endl;
    }

    cout << "-------------------------------------------------------------------------------" << endl;
}

void writeDataToFile(FootballPlayer players[], int size)
{
    //Writing data to file
    ofstream myfile ("output.txt");
    for(int j = 0; j < size; j++)
    {
        myfile << players[j].name << " " <<
            players[j].pos << " " <<
            players[j].tds << " " <<
            players[j].ctch << " " <<
            players[j].pass << " " <<
            players[j].rec << " " <<
            players[j].rush << " " << endl;
    }

    cout << "Writing data to output.txt is completed!" << endl;
    myfile.close();
}

int searchNameStr(FootballPlayer players[], int size, const string& searchName)
{
    bool found = false;
    int index;
    for(int j = 0; j < size; j++)
    {
        if(searchName == players[j].name)
        {
            found = true;
            index = j;
            break;
        }
    }
    if(found == true)
        return index;
    else
        return -1;
};

Explanation / Answer

the program is quite good.

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