#include <boost/qvm/mat_operations.hpp>
namespace boost
{
namespace qvm
{
//Only enabled if:
// is_mat<R>::value && is_mat<A>::value &&
// mat_traits<R>::rows==mat_traits<A>::rows &&
// mat_traits<R>::cols==mat_traits<A>::cols
template <class R,class A>
R convert_to( A const & a );
}
}
R must be copyable.
As if: R r; assign(r,a); return r;