Question about arrays.

Hello, I am extremely new to C++.. following the guidelines of a book I bought, I have knowledge of PHP etc so I know a few things.

Anyway I went ahead of myself and tried to create something using simple arrays. Here's what I got.

Code:

#include <cstdlib>
#include <iostream>

using namespace std;

int main()
{
    string average;
    int total=0;
    int i=0;
    int input;
    for(i =0; i<3; ++i){
          cout<<"Enter A Number:"<<endl;
          cin>>average[i];
          cout<<"  adding: "<<average[i]<<" to "<<total<<endl;
          total += average[i];
          cout<<"    new total: "<<total<<endl;
    }
    cout<<total<<endl;
    cout<<"\nThe average of "<<i<<" numbers is: "<<total/i<<".";
    system("pause");
}

My problem is, average[] array is obviously not adding the integer value of what the user enters. How can I convert the input to average[i] from a string to integer so the total is correct? Or better yet, how do I create a Integer specific array?

Thanks in advance for your help. I hope I was clear enough.


-Aaron

In your code, average is not an array. average is a std::string (but you did not #include <string>, so there is a risk that it may not be defined at that point).

how do I create a Integer specific array?

In your case, it would be:

Code:

int average[3];

Though average is not a particularly appropriate name for the array (and you can do without the array in the first place).

Thanks for your quick reply. Changing it worked however I was certain I had tried that before :S

Once again thanks and good luck !

Important difference between PHP and C++: C++ arrays are of fixed size. Even the dynamically sized vector does not automatically extend when you supply a large index.