text: /// @ref gtx_exterior_product
  
  #include <limits>
  
  namespace glm {
  namespace detail
  {
  	template<typename T, qualifier Q, bool Aligned>
  	struct compute_cross_vec2
  	{
  		GLM_FUNC_QUALIFIER static T call(vec<2, T, Q> const& v, vec<2, T, Q> const& u)
  		{
  			GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'cross' accepts only floating-point inputs");
  
  			return v.x * u.y - u.x * v.y;
  		}
  	};
  }//namespace detail
  
  	template<typename T, qualifier Q>
  	GLM_FUNC_QUALIFIER T cross(vec<2, T, Q> const& x, vec<2, T, Q> const& y)
  	{
  		return detail::compute_cross_vec2<T, Q, detail::is_aligned<Q>::value>::call(x, y);
  	}
  }//namespace glm
  
  