What is the difference between using pointer vector or non pointer vector? : <pre><code>private:
    vector&lt;float*&gt;  m_values;
    vector&lt;float&gt; *m_index;
    vector&lt;float*&gt; *m_rowptr;
</code></pre>

<p>What would be the best way to save a large data structure, using vectors?</p>
