FunctorToMap< F, K, V > Class Template Reference

Detailed Description

template<typename F, typename K = typename F::argument_type, typename V = typename F::result_type>
class lemon::FunctorToMap< F, K, V >

This read-only map returns the value of a given functor. Actually, it just wraps the functor and provides the Key and Value typedefs.

Template parameters K and V will become its Key and Value. In most cases they have to be given explicitly because a functor typically does not provide argument_type and result_type typedefs. Parameter F is the type of the used functor.

The simplest way of using this map is through the functorToMap() function.

See Also

MapToFunctor

#include <lemon/maps.h>

Inheritance diagram for FunctorToMap< F, K, V >:

Public Types
typedef K	Key
typedef V	Value
Public Types inherited from MapBase< K, V >
typedef K	Key
	The key type of the map.
typedef V	Value
	The value type of the map. (The type of objects associated with the keys).

Public Member Functions
	FunctorToMap (const F &f=F())
	Constructor.
Value	operator[] (const Key &k) const

Related Functions
(Note that these are not member functions.)
template<typename K , typename V , typename F >
FunctorToMap< F, K, V >	functorToMap (const F &f)
	Returns a FunctorToMap class.