pub unsafe extern "C" fn igraph_convex_hull_2d(
data: *const igraph_matrix_t,
resverts: *mut igraph_vector_int_t,
rescoords: *mut igraph_matrix_t,
) -> igraph_error_tpub unsafe extern "C" fn igraph_convex_hull_2d(
data: *const igraph_matrix_t,
resverts: *mut igraph_vector_int_t,
rescoords: *mut igraph_matrix_t,
) -> igraph_error_t