<p>In <a href="https://github.com/mlpack/mlpack/pull/683#discussion_r66424464">src/mlpack/methods/edge_boxes/feature_extraction_impl.hpp</a>:</p>
<pre style='color:#555'>&gt; +  this-&gt;options = inMap;
&gt; +}
&gt; +
&gt; +template&lt;typename MatType, typename CubeType&gt;
&gt; +MatType StructuredForests&lt;MatType, CubeType&gt;::
&gt; +LoadData(MatType&amp; images, MatType&amp; boundaries, MatType&amp; segmentations)
&gt; +{
&gt; +  int num_images = this-&gt;options[&quot;num_images&quot;];
&gt; +  int row_size = this-&gt;options[&quot;row_size&quot;];
&gt; +  int col_size = this-&gt;options[&quot;col_size&quot;];
&gt; +  MatType input_data(num_images * row_size * 5, col_size);
&gt; +  // we store the input data as follows: 
&gt; +  // images (3), boundaries (1), segmentations (1).
&gt; +  int loop_iter = num_images * 5;
&gt; +  size_t row_idx = 0;
&gt; +  int col_i = 0, col_s = 0, col_b = 0;
</pre>
<p>use size_t maybe is a better choice, since this type guarantee it is large enough for the index of array</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">&mdash;<br />You are receiving this because you are subscribed to this thread.<br />Reply to this email directly, <a href="https://github.com/mlpack/mlpack/pull/683/files/9d85b64c6c6bdff608331195351d09abf56cfc96#r66424464">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe/AJ4bFN45iJZWgShvDOVUfHrIGVJ8rQn4ks5qJ_m1gaJpZM4IvUrl">mute the thread</a>.<img alt="" height="1" src="https://github.com/notifications/beacon/AJ4bFPCr_Fy2nPAekfWG7h28XFCy1tJOks5qJ_m1gaJpZM4IvUrl.gif" width="1" /></p>
<div itemscope itemtype="http://schema.org/EmailMessage">
<div itemprop="action" itemscope itemtype="http://schema.org/ViewAction">
  <link itemprop="url" href="https://github.com/mlpack/mlpack/pull/683/files/9d85b64c6c6bdff608331195351d09abf56cfc96#r66424464"></link>
  <meta itemprop="name" content="View Pull Request"></meta>
</div>
<meta itemprop="description" content="View this Pull Request on GitHub"></meta>
</div>