Question

I’m just following a simple c++ tutorial on do/while loops and i seem to have copied exactly what was written in the tutorial but i’m not yielding the same results. This is my code:

int main()
{
    int c=0;
    int i=0;
    int str;
    do
    {
        cout << "Enter a num: \n";
        cin >> i;
        c = c + i;
        cout << "Do you wan't to enter another num? y/n: \n";
        cin >> str;

    } while (c < 15);

    cout << "The sum of the numbers are: " << c << endl;


    system("pause");
    return (0);
}

Right now, after 1 iteration, the loop just runs without asking for my inputs again and only calculating the sum with my first initial input for i.
However if i remove the second pair of cout/cin statements, the program works fine..

can someone spot my error please? thank you!

Answer 1

If you change

int str;

to

char str;

Your loop works as you seem to intend (tested in Visual Studio 2010).
Although, you should also probably check for str == 'n', since they told you that they were done.