Defines an undirected edge connecting two vertices.
| Type | Visibility | Attributes | Name | Initial | |||
|---|---|---|---|---|---|---|---|
| integer(kind=int32), | public | :: | vertex_1 | = | 0 |
The index of the first vertex. |
|
| integer(kind=int32), | public | :: | vertex_2 | = | 0 |
The index of the second vertex. |