Debug a C++ Program

10x Genomics sequencers stream raw optical readings from each imaging cycle into a fixed-size buffer before they get processed downstream. Here is the buffer class you are asked to debug.

#include <iostream>

class SampleBuffer {
public:
    SampleBuffer(int size) {
        length = size;
        data = new double[length];
        for (int i = 0; i <= length; i++) {
            data[i] = 0.0;
        }
    }

    ~SampleBuffer() {
        delete data;
    }

    void loadReading(int index, double value) {
        data[index] = value;
    }

    double* getWindow(int start, int count) {
        double window[count];
        for (int i = 0; i < count; i++) {
            window[i] = data[start + i];
        }
        return window;
    }

    void trimTrailingZeros() {
        unsigned int i = length - 1;
        while (i >= 0 && data[i] == 0.0) {
            i--;
        }
        length = i + 1;
    }

private:
    double* data;
    int length;
};

int main() {
    SampleBuffer buffer(1024);
    for (int i = 0; i < 1024; i++) {
        buffer.loadReading(i, i * 0.01);
    }
    double* window = buffer.getWindow(0, 10);
    std::cout << window[0] << std::endl;
    return 0;
}

Debug this class and explain what is actually wrong with it. Walk through each issue you find, what would actually happen when this code runs on a real sequencer buffer, and what you would change and why.