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NullMap< K, V > Class Template Reference

Detailed Description

template<typename K, typename V>
class lemon::NullMap< K, V >

This map can be used if you have to provide a map only for its type definitions, or if you have to provide a writable map, but data written to it is not required (i.e. it will be sent to /dev/null). It conforms to the ReadWriteMap concept.

See Also

#include <lemon/maps.h>

+ Inheritance diagram for NullMap< 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

Value operator[] (const Key &) const
 Gives back a default constructed element.
void set (const Key &, const Value &)
 Absorbs the value.

Related Functions

(Note that these are not member functions.)

template<typename K , typename V >
NullMap< K, V > nullMap ()
 Returns a NullMap class. More...