QVM: Quaternions, Vectors, Matrices

scalar_cast(quat)

#include <boost/qvm/quat_operations.hpp>

namespace boost
{
    namespace qvm
    {
        //Only enabled if: is_quat<A>::value
        template <class Scalar,class A>
        -unspecified-return_type- scalar_cast( A const & a );
    }
}

Returns:

A read-only view proxy of a that looks like a quaternion of the same dimensions as a, but with scalar_type Scalar and elements constructed from the corresponding elements of a.

See also: boost/qvm/quat_operations.hpp