This read-only map returns the composition of two given maps. That is to say, if m1 is of type M1 and m2 is of M2, then for 
 cm[x] will be equal to m1[m2[x]].
The Key type of the map is inherited from M2 and the Value type is from M1. M2::Value must be convertible to M1::Key.
The simplest way of using this map is through the composeMap() function.
#include <lemon/maps.h>
 Inheritance diagram for ComposeMap< M1, M2 >:
 Inheritance diagram for ComposeMap< M1, M2 >:| Public Types | |
| typedef M2::Key | Key | 
|  | |
| typedef M1::Value | Value | 
|  | |
|  Public Types inherited from MapBase< M2::Key, M1::Value > | |
| typedef M2::Key | Key | 
| The key type of the map. | |
| typedef M1::Value | Value | 
| The value type of the map. (The type of objects associated with the keys). | |
| Public Member Functions | |
| ComposeMap (const M1 &m1, const M2 &m2) | |
| Constructor. | |
| MapTraits< M1 >::ConstReturnValue | operator[] (const Key &k) const | 
|  | |
| Related Functions | |
| (Note that these are not member functions.) | |
| template<typename M1 , typename M2 > | |
| ComposeMap< M1, M2 > | composeMap (const M1 &m1, const M2 &m2) | 
| Returns a ComposeMapclass.  More... | |
 1.8.5
 1.8.5