#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 );
}
}
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.