CODEWITHSUNDEEP
c++debuggingvisual-c++while-loop
ardilgulez
ardilgulez

Reputation: 1944

Loop completes a cycle before getting input, how to fix?

while (1)
{
    cout << "Enter the Citizen ID number of the worker or Enter 0 to exit:" << endl;
    getline (cin, j);
    for (i=0; i<5; i++)
    {
        if (workers[i]->IDno == j) 
        {
            wFind = 1;
            cout << "Choose your option:" << endl;
            cout << "1- Display all details of the worker" << endl;
            cout << "2- Display number of the days worker delayed" << endl;
            cout << "3- Display number of the days worker missed" << endl;
            cin >> k;
            switch (k)
            {
            case 1:
                workers[i]->AWorker();
                break;
            case 2:
                cout << workers[i]->TotalDaysDelayed() << endl;
                break;
            case 3:
                cout << workers[i]->TotalDaysMissed() << endl;
                break;
            default:
                break;
            }
        }
        else
            wFind = 0;
    }

    if (wFind == 0)
        cout << "ERROR: No worker has the ID number that you typed!" << endl;
}

Note: wFind is initialized as 2.

When I execute this code, I always get this output:

Enter the Citizen ID number of the worker or Enter 0 to exit:
ERROR: No worker has the ID number that you typed!
Enter the Citizen ID number of the worker or Enter 0 to exit:

Interestingly enough, my code can complete a cycle in the loop before getting my input for the string j. How can this be possible and what can I do to fix it?

Upvotes: 0

Views: 119

Answers (1)

Dark Falcon
Dark Falcon

Reputation: 44191

cin >> k; will not eat the newline. You need to call std::getline after it to consume the newline.

If you're having the problem on the first iteration of the loop, I would presume you have code above this which does not eat the newline as well.

Upvotes: 1

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