boost::geometry::tag
tag.hpp
typename Geometry
traits::tag< typename geometry::util::bare_type< Geometry >::type >::type typedef traits::tag< typename geometry::util::bare_type<Geometry>::type >::type boost::geometry::tag< Geometry >::type type

Metafunction defining [*type] as the tag of the \3.

With Boost.Geometry, tags are the driving force of the tag dispatching mechanism. The tag metafunction is therefore used in every free function. Geometry

Any type fulfilling a Geometry Concept

[include reference/core/tag.qbk]
- boost::geometry::tag
  type