One-line initialiser for Boost.MultiArray

Question

I have a n-dimensional Boost.MultiArray I initialize as follows:

const int n=3, size=4; //# of dimensions and size of one dimension
boost::multi_array

        

Answer 1

Turns out, std::vector has a constructor, that constructs a vector with a constant value repeated n times, so a possible solution looks like this:

const int n=2, size=4; //# of dimensions and size of one dimension
boost::multi_array arr(std::vector(n,size));

This initializes a n-dimensional multi_array with each dimension's size set to size.