#include <boost/qvm/quat_traits_defaults.hpp>
namespace boost
{
namespace qvm
{
template <class QuatType,class ScalarType>
struct quat_traits_defaults
{
typedef QuatType quat_type;
typedef ScalarType scalar_type;
template <int I>
static BOOST_QVM_INLINE_CRITICAL
scalar_type read_element( quat_type const & x )
{
return quat_traits<quat_type>::template write_element<I>(const_cast<quat_type &>(x));
}
};
}
}
The quat_traits_defaults template is designed to be used as a public base for user-defined specializations of the quat_traits template, to easily define the required members. If it is used, the only member that must be defined by the user in a quat_traits specialization is write_element; the quat_traits_defaults base will define read_element, as well as scalar_type automatically.