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
em[x] will be equal to m1[x]==m2[x].
The simplest way of using this map is through the equalMap() function.
#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... | |
1.8.5