boost::bimaps::tags::support Namespace Reference

Metafunctions to work with tagged types. More...

Classes
struct	apply_to_value_type
	Higger order metafunction similar to mpl::apply but for tagged types. More...
struct	apply_to_value_type< F, tagged< ValueType, Tag > >
struct	default_tagged
	Weak tagging metafunction. More...
struct	default_tagged< tagged< Type, OldTag >, NewTag >
struct	is_tagged
	Type trait to check if a type is tagged. More...
struct	is_tagged< tagged< Type, Tag > >
struct	overwrite_tagged
	Hard tagging metafunction. More...
struct	overwrite_tagged< tagged< Type, OldTag >, NewTag >
struct	tag_of
	Metafunction to obtain the tag of a type. More...
struct	tag_of< tagged< Type, Tag > >
struct	value_type_of
	Metafunction to work with tagged and untagged type uniformly. More...
struct	value_type_of< tagged< Type, Tag > >

Detailed Description

Metafunctions to work with tagged types.

This metafunctions aims to make easier the manage of tagged types. They are all mpl compatible metafunctions and can be used with lambda expresions. The metafunction value_type_of and tag_of get the data in a tagged type in a secure and consistent way. default_tagged and overwrite_tagged allows to work with the tag of a tagged type, and apply_to_value_type is a higher order metafunction that allow the user to change the type of a TaggedType.