EqualMap< M1, M2 > Class Template Reference

Detailed Description

template<typename M1, typename M2>
class lemon::EqualMap< M1, M2 >

This read-only map assigns true to the keys for which the corresponding values of the two maps are equal. Its Key type is inherited from M1 and its Value type is bool. M2::Key must be convertible to M1::Key.

If m1 is of type M1 and m2 is of M2, then for

*    EqualMap<M1,M2> em(m1,m2);
*  

em[x] will be equal to m1[x]==m2[x].

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

See Also

LessMap

#include <lemon/maps.h>

Inheritance diagram for EqualMap< M1, M2 >:

Public Types
typedef M1::Key	Key
typedef bool	Value
Public Types inherited from MapBase< M1::Key, bool >
typedef M1::Key	Key
	The key type of the map.
typedef bool	Value
	The value type of the map. (The type of objects associated with the keys).

Public Member Functions
	EqualMap (const M1 &m1, const M2 &m2)
	Constructor.
Value	operator[] (const Key &k) const

Related Functions
(Note that these are not member functions.)
template<typename M1 , typename M2 >
EqualMap< M1, M2 >	equalMap (const M1 &m1, const M2 &m2)
	Returns an EqualMap class. More...