Return Boost distribution generator from function to populate vectors in C++

Question

I have the following function that should return a distribution generateor such that I can use the function to populate a vector i.e.

template         


        

Answer 1

You can use boost::function<> (or even std::function<>):

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#include <boost/math/distributions.hpp>
#include <boost/function.hpp>
#include <boost/random.hpp>
#include <random>

static boost::mt19937 gen;
typedef boost::function<double()> Distri;

Distri new_func()
{
    std::uniform_real_distribution<> Uni(1,2);
    return boost::variate_generator< boost::mt19937, std::uniform_real_distribution<>>(gen , Uni);
}

int main ()
{
    std::vector<double> test;
    //something like
    Distri d = new_func();

    //likely
    std::generate_n(back_inserter(test), 100, d);
}