PK_VERTEX_ask_faces

PK_ERROR_code_t   PK_VERTEX_ask_faces
(
--- received arguments ---
PK_VERTEX_t       vertex,            --- a vertex

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


This function returns the set of faces at the given vertex.


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