Initializing boost matrix with a std::vector or array

Question

I have a method that takes a std::vector as one of its parameters. Is there a way I can initialize a matrix by assigning the std::vector to the matrix? Here's what I tried to do below. Does anyone know how i can achieve assigning the vector (or even a pointer of doubles) to the matrix? Thanks in advance. Mike

void Foo(std::vector v)
{
    matrix<double> m(m, n, v);
    // work with matrix...
}

Answer 1

Here is yet another example of how this can be done:

#include <algorithm>
#include <vector>
#include <boost/numeric/ublas/storage.hpp>
#include <boost/numeric/ublas/matrix.hpp>
#include <boost/numeric/ublas/io.hpp>

namespace ublas = boost::numeric::ublas;

template <typename T, typename F=ublas::row_major>
ublas::matrix<T, F> makeMatrix(std::size_t m, std::size_t n, const std::vector<T> & v)
{
    if(m*n!=v.size()) {
        ; // Handle this case
    }
    ublas::unbounded_array<T> storage(m*n);
    std::copy(v.begin(), v.end(), storage.begin());
    return ublas::matrix<T>(m, n, storage);
}

int main () {;
    std::vector<double> vec {1, 2, 3, 4, 5, 6};
    ublas::matrix<double> mm = makeMatrix(3,2,vec);
    std::cout << mm << std::endl;
}