#include <boost/qvm/vec.hpp>
namespace boost
{
namespace qvm
{
template <class T,int Dim>
struct vec
{
T a[Dim];
template <class R>
operator R() const
{
R r;
assign(r,*this);
return r;
}
};
template <class Vector>
struct vec_traits;
template <class T,int Dim>
struct vec_traits< vec<T,Dim> >
{
typedef T scalar_type;
static int const dim=Dim;
template <int I> static scalar_type read_element( vec<T,Dim> const & x ) { return x.a[I]; }
template <int I> static scalar_type & write_element( vec<T,Dim> & x ) { return x.a[I]; }
static scalar_type read_element_idx( int i, vec<T,Dim> const & x ) { return x.a[i]; }
static scalar_type & write_element_idx( int i, vec<T,Dim> & x ) { return x.a[i]; }
};
}
}
This is a simple vector type. It converts to any other vector type of compatible size.
The partial specialization of the vec_traits template makes the vec template compatible with the generic operations defined by Boost QVM.