# CyclicBuffer A CyclicBuffer stores can store a number of successive values. Once the buffer is full, adding a new value will overwrite the oldest value in the buffer. It can be used, for instance, to store the last N measurements from a given source. ## Interface The full class definition:
    template <typename T>
    CyclicBuffer<T>;
    value_type
| Alias for template parameter T.
    CyclicBuffer<T>(const unsigned N = 64u)
| Constructor,N is the desired capacity of the buffer.
    unsigned size() cons
| Number of element currently in the buffer.
    unsigned capacity() const
| Maximum capacity of the buffer.
    void resize(const unsigned N)
| Change the capacity of the buffer.
    void clear()
| Remove all elements from the buffer.
    void add(const value_type x)
| Add an element to the buffer.
    value_type avg() const
| Return the average value of all the elements in the buffer.
    value_type operator[](const unsigned index) const
| Access previously stored elements. For index equal to zero, retrieve the last added element; for index equals one, return the last-but-one added element; et cetera.