When I write number to an array, there is always one extra and repetitive last number

Question

For my homework, I need to open a file and read numbers form it. Then assigning each number to an array. However, the last number always added twice to the array.

the numbers in the file 8 1 9 1 7 2 10 8 2 6 2 7 3 10 10 10 8 1

the output looks like this pin[0]=8 pin1=1......pin[16]=8 pin[17]=1 pin[18]=1

my code

void arrayFiller(int arrayP[])
{

    ifstream cleanout9;

    cleanout9.open("cleanlane9.txt");

    while(cleanout9.fail())
    {
        cout<< "fail to open file";
        exit(-1);
    }

    int i=0;

    while(! cleanout9.eof())//&&i<18) If I add this, I can control the output, do I have other methods?
    {
        int num;
        cleanout9>>num;
        arrayP[i]=num;
        cout<<"\npin["<<i<< "]"<<"="<<arrayP[i]<<"   ";
        i++;
    }

    cleanout9.close();
}

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