<p>In <a href="https://github.com/mlpack/mlpack/pull/753#discussion_r73809302">src/mlpack/methods/ne/genome.hpp</a>:</p>
<pre style='color:#555'>> + // Links.
> + std::vector<LinkGene> aLinkGenes;
> +
> + // Default constructor.
> + Genome() {
> + aId = -1;
> + aNumInput = 0;
> + aNumOutput = 0;
> + aFitness = DBL_MAX;
> + }
> +
> + // Parametric constructor.
> + Genome(int id,
> +          const std::vector<NeuronGene>& neuronGenes,
> + const std::vector<LinkGene>& linkGenes,
> + int numInput,
</pre>
<p>I think it shall make no difference. Besides, it will make a lot of consts.<br>
<a href="http://stackoverflow.com/questions/117293/use-of-const-for-function-parameters">http://stackoverflow.com/questions/117293/use-of-const-for-function-parameters</a></p>
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