<p>In <a href="https://github.com/mlpack/mlpack/pull/391#discussion_r23553455">src/mlpack/core/optimizers/sdp/lrsdp_function.hpp</a>:</p>
<pre style='color:#555'>> @@ -57,110 +73,86 @@ class LRSDPFunction
> arma::mat& gradient) const;
>
> //! Get the number of sparse constraints in the LRSDP.
> - size_t NumSparseConstraints() const { return sparseB.n_elem; }
> + size_t NumSparseConstraints() const { return sdp.NumSparseConstraints(); }
</pre>
<p>If you don't want to do it, I'm happy to. :)</p>
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