How do I have a input statement that repeats until the number of fields chosen by the user are finished?

Question

I am trying to create a chore chart with a bit of console code but I'm very new to C++ and I'm running into a roadblock trying to figure out how to create a loop that asks the user the following:

1. How many chore fields they would like to input

2. Input prompt for each field

3. When the chosen number of fields have been completed a new prompt should ask if the user would like to input more fields or if they are finished.

4. If they want to input more, start back at loop for # of fields to input or if finished have it print the chore chart to screen. Very basically as I am still grasping these functions.

Here's my code so far:

#include <iostream>

using namespace std;

int main()
{
    int chores_num;
    while (finished = true) = {
        cout << "How many chores would you like to input?\n"
        cin >> chores_num;

        cout << "Enter Chore\n";
        cin >> chore;
        cout << ""
    }

    return 0;
}

Answer 1

You could think about your problem this way: Get number of chores to input; That number of times, get a specific chore input; Get whether to repeat, and do so if yes.

If you have already covered how to write simple functions, I would suggest breaking up your program into functional (pun intended) parts, each in their own function. This is widely considered good programming practice, and can make programs much more readable. If you aren't comfortable with writing/calling your own functions, don't sweat it for now, but keep this in mind later.

C++ has a bit of a learning curve, but is extremely powerful once you've got the hang of it. Keep it up!

Answer 2

You need 2 loops, but your code only has 1 loop. You need 1 loop to keep asking if chores should be entered, and 1 loop to enter the actual chores.

For example:

#include <iostream>
#include <string>
#include <limits>

using namespace std;

template <typename T>
T prompt(const char *msg)
{
    T input;
    cout << msg << " ";
    while (!(cin >> input)) {
        cout << "Invalid input, try again: ";
        cin.clear();
        cin.ignore(numeric_limits<streamsize>::max(), '\n');
    }

    cin.clear();
    cin.ignore(numeric_limits<streamsize>::max(), '\n');

    return input;
}

template <>
string prompt<string>(const char *msg)
{
    string input;
    cout << msg << " ";
    getline(cin, input);
    return input;
}

int main()
{
    int chores_num;
    string chore;
    char choice;

    do {
        chores_num = prompt<int>("How many chores would you like to input?");

        for  (int i = 0; i < chores_num; ++i) {
            chore = prompt<string>("Enter chore:");
            //...
        }

        choice = prompt<char>("Input more chores (Y|N)?");
    }
    while ((choice == 'y') || (choice == 'Y'));

    // print chore chart...

    return 0;
}