Type Alias agobjupdfn_t 

pub type agobjupdfn_t = Option<unsafe extern "C" fn(g: *mut Agraph_t, obj: *mut Agobj_t, arg: *mut c_void, sym: *mut Agsym_t)>;

Aliased Type

pub enum agobjupdfn_t {
    None,
    Some(unsafe extern "C" fn(*mut Agraph_s, *mut Agobj_s, *mut c_void, *mut Agsym_s)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut Agraph_s, *mut Agobj_s, *mut c_void, *mut Agsym_s))

Some value of type T.