SourceMap provides access for the source node of each arc in a digraph, which is returned by the source() function of the digraph. 
| GR | The digraph type. | 
#include <lemon/maps.h>
| Public Types | |
| typedef GR::Arc | Key | 
| The key type (the Arctype of the digraph). | |
| typedef GR::Node | Value | 
| The value type (the Nodetype of the digraph). | |
| Public Member Functions | |
| SourceMap (const GR &digraph) | |
| Constructor.  More... | |
| Value | operator[] (const Key &arc) const | 
| Returns the source node of the given arc.  More... | |
| Related Functions | |
| (Note that these are not member functions.) | |
| template<typename GR > | |
| SourceMap< GR > | sourceMap (const GR &graph) | 
| Returns a SourceMapclass.  More... | |
| 
 | inlineexplicit | 
Constructor.
| digraph | The digraph that the map belongs to. | 
 1.8.5
 1.8.5