I want to access and sum the values of a pointer array, but I get the wrong values

Question

In my program the user allocates a number of random float values to a pointer array. After that I wish to use the values generated in the array in a function to calculate the mean-value, but I dont get the correct values

This is what I use to allocate random float numbers to the pointer *arr

for (int i = 0; i < antalVarde; i++)
    {
        if (i % 10 == 0)
            printf("\n");

        *arr = RandomReal(low, high);
        printf("%.1f ", *arr);
    }

And this is my function to calculate the mean-value.

float mean(int antalVarde, float *arr)
{
    float medel = 0.0;
    for (int i = 0; i < antalVarde; i++)
    {
        medel = medel + *(arr + i);
    }
    medel = medel / antalVarde;
    return medel;
}

When I debug while stepping-into the code it gets messed up when I get to

medel = medel + *(arr + i);

Can this not be used to access the values in a pointer array?

Forgive me if it's a poorly asked question. grateful for answers.

Answer 1

You don't increment pointer arr in the initialisation loop. Only the first float at the addresse pointed by arr is written.