Method push_front

dlib/sliding_buffer/circular_buffer.h:90–97

        unsigned long size() const { return data.size(); }

        void push_front(const T& value)
        {
            if (data.size() != 0)
            {
                offset = (offset - 1 + data.size())%data.size();
                data[offset] = value;
            }
        }

        void push_back(const T& value)
        {