PK_EDGE_ask_faces

PK_ERROR_code_t   PK_EDGE_ask_faces
(
--- received arguments ---
PK_EDGE_t         edge,              --- an edge

--- returned arguments ---
int        *const n_faces,           --- number of faces (>= 0)
PK_FACE_t **const faces              --- faces (optional)
)


This function returns the set of faces which contain the given edge.


The output array 'faces' is optional. If it is set to NULL, the function
will only compute the number of faces which contain the edge.