Type Alias agobjfn_t 

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

Aliased Type

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

Variants

None

No value.

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

Some value of type T.