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POC++ : variable template parameters (for genetic algorithm)
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  1. POC++ : variable template parameters (for genetic algorithm)
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    copied!<p>I'm writing a parallel evolutionary algorithm library using C++, MPI and CUDA. I need to extract the raw data from my object oriented design and stick it into a flat array (or std::vector using <a href="http://clustertech.com/index.php?Download:STL-MPI_Library" rel="nofollow noreferrer">stl-mpi</a>) for it to be sent across to nodes or the cuda device.</p> <p>The complete design is quite complex with a lot of inheritance to keep the library flexible. But the classes of interest are:</p> <p><strong>Genome class</strong> - contains vector of data. e.g. floats or bools.</p> <p><strong>Population class</strong> - contains vector of Genome objects and is initailised with a genome object.</p> <p>First a genome object is created, then a reference to it is passed to population class constructor which creates its own vector of genomes based on passed one. (Hope that makes sense!)</p> <p>So I thought I would add another member vector, say <code>rawData</code> to the population class. But the type of rawData would need to depend on the type of data stored in the genomes (or the original genome object).<br> Here lies the problem, as far as I am aware there is no way to dynamically set the type passed to template.</p> <p>my pseudo-code would be</p> <pre><code>class genome { std::vector&lt;bool&gt; data; } template &lt;class T&gt; class population { std::vector&lt;genome&gt; population; std::vector&lt;T&gt; rawData; void PackDataIntoRawData(); }; </code></pre> <p>then when i create the population (which is actually a member object of another class), I would call:</p> <pre><code>genome myBitGenome(); population&lt;type of myBitGenome.data&gt; pop(myBitGenome); </code></pre> <p>Is there anyway to do this, or can anyone suggest another way to implement this.</p> <p>Thanks in advance</p>
 

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