<p>Okay, great so, I think we should merge this code first and then head over to <a href="https://github.com/mlpack/mlpack/pull/516" class="issue-link js-issue-link" data-url="https://github.com/mlpack/mlpack/issues/516" data-id="131486005" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#516</a>. We have to slightly modify <a href="https://github.com/mlpack/mlpack/pull/516" class="issue-link js-issue-link" data-url="https://github.com/mlpack/mlpack/issues/516" data-id="131486005" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#516</a>, I can do that if no one likes. </p>

<blockquote>
<p>About c++14 feature, could we postpone the use of them? Because there are a lot of c++14 features do not support by vc2013. Although vc2015 out, but cuda do not support vc2015 yet.</p>
</blockquote>

<p>The test should build using a C++11 compiler because of the conditional-compilation directives Joseph used. But I agree, we should avoid C++14 features for the moment, we can easily rewrite the test. I can do that once the code is merged.</p>

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