pub type igraph_astar_heuristic_func_t = Option<unsafe extern "C" fn(result: *mut igraph_real_t, from: igraph_int_t, to: igraph_int_t, extra: *mut c_void) -> igraph_error_t>;Aliased Type§
pub enum igraph_astar_heuristic_func_t {
None,
Some(unsafe extern "C" fn(*mut f64, i64, i64, *mut c_void) -> u32),
}