Stochastic Nonsense

Put something smart here.

C++ and Const. Sigh.

well known benefits of constness.

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// function:
bool learn_tree(const float** target, unsigned int num_classes);

// and I'm attempting to call with:
float** residuals;

// compiling produces:
error: cannot initialize a parameter of type 'const float **' with an lvalue of type 'float **'

what on earth? It turns out the winner is this beautiful bit of syntax:

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bool learn_tree(const float* const* target, unsigned int num_classes);

beautiful.

So for all future googlers, this is how you declare const double arrays or const multidimensional arrays in c++.