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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

#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())
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. More...