calling function on while loop-CodePudding

I'm making a calculator program but I already encounter a problem. Well, my code is in a loop that will call a function to display the choices and then ask the user to pick, a/s/m/d are the choices. If the input is on the choices, it will proceed to the next step. Otherwise, it will loop and then call the function again.

#include <iostream>
using namespace std;

void home()
{
    cout << "\nChoose your operation:" << endl;
    cout << "\tType [A] for Addition" << endl;
    cout << "\tType [S] for Subtraction"<< endl;
    cout << "\tType [M] for Multiplication" << endl;
    cout << "\tType [D] for Division" << endl;
}

int main()
{
    char operation;
    bool no_operator = true;
    int design = 73;

    for (int i = 0; i < design; i  ){
        if (i == 25){
            cout << " WELCOME TO CALCULATOR ";
            i  = 22;
        }
        else i == 72 ? cout << "*\n" : cout << "*";
    }
    while (no_operator){
        home();
        cout << "\nOperation: ";
        cin >> operation;

        if (operation == 'A' || operation == 'a')
        {
            cout << "\nIt will going to add numbers";
            no_operator = false;
        }
        else if (operation == 'S' || operation == 's')
        {
            no_operator = false;
            cout << "\nIt will going to subtract numbers";
        }
        else if (operation == 'M' || operation == 'm')
        {
            no_operator = false;
            cout << "\nIt will going to multiply numbers";
        }
        else if (operation == 'D' || operation == 'd')
        {
            no_operator = false;
            cout << "\nIt will going to divide numbers";
        }
        else
        {
            cout << "\tInvalid Input: You must enter A/S/M/D only\n";
            //home();
        }
    }

    return 0;
}

My problem is it will run the '''home()''' in else statement even if the input is correct on the second loop.

I want to stop the '''home()''' to be called when the input is correct

CodePudding user response：

You program is working perfectly fine as the input is correct it does not show the home rather print the message it will going to divide etc.

CodePudding user response：

Your code works perfectly fine. Make sure you're inputting the correct letters. Also for this code, a "do while()" loop would be better.