Calculate rolling / moving average in C++

Question

I know this is achievable with boost as per:

Using boost::accumulators, how can I reset a rolling window size, does it keep extra history?

But I really would

Answer 1

a simple moving average for 10 items, using a list:

#include 

std::list listDeltaMA;

float getDeltaMovingAverage(float delta)
{
    listDeltaMA.push_back(delta);
    if (listDeltaMA.size() > 10) listDeltaMA.pop_front();
    float sum = 0;
    for (std::list::iterator p = listDeltaMA.begin(); p != listDeltaMA.end(); ++p)
        sum += (float)*p;
    return sum / listDeltaMA.size();
}