mp_units::vector_components

Opts a vector quantity into decomposition into named 1D-vector components

Synopsis

Declared in <mp-units/framework/customization_points.h>

template<QuantitySpec auto QS>
  requires(get_character(QS).order == quantity_tensor_order::vector) &&
          (!detail::QuantityKindSpec<MP_UNITS_NTTP_TYPE(QS)>)
struct vector_components;

Description

Specialize for a vector quantity_spec and inherit from vector_axes, listing the per-axis quantity specs in coordinate order (see mp-units/framework/vector_components.h)

template<>
struct mp_units::vector_components<flight_velocity> :
    mp_units::vector_axes<forward_velocity, wind_drift, sink_rate> {};

Left undefined (the quantity is not decomposable) unless specialized. Only a concrete vector quantity spec may be decomposed, so a specialization for a non-vector spec or for a kind_of quantity kind is ill-formed.

Template Parameters

<>

Name	Description
QS	the vector quantity spec being decomposed