<p>In <a href="https://github.com/mlpack/mlpack/pull/753#discussion_r73809317">src/mlpack/methods/ne/genome.hpp</a>:</p>
<pre style='color:#555'>> + aNumOutput(numOutput),
> + aFitness(fitness)
> + {}
> +
> + // Copy constructor.
> + Genome(const Genome& genome) {
> + aId = genome.aId;
> + aNeuronGenes = genome.aNeuronGenes;
> + aLinkGenes = genome.aLinkGenes;
> + aNumInput = genome.aNumInput;
> + aNumOutput = genome.aNumOutput;
> + aFitness = genome.aFitness;
> + }
> +
> + // Destructor.
> + ~Genome() {}
</pre>
<p>Yeah, just a habit for potential usage.</p>
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