Function igraph_simple_interconnected_islands_game 

pub unsafe extern "C" fn igraph_simple_interconnected_islands_game(
    graph: *mut igraph_t,
    islands_n: igraph_int_t,
    islands_size: igraph_int_t,
    islands_pin: igraph_real_t,
    n_inter: igraph_int_t,
) -> igraph_error_t