Type Alias CFSetEqualCallBack 

pub type CFSetEqualCallBack = Option<unsafe extern "C" fn(value1: *const c_void, value2: *const c_void) -> Boolean>;

Aliased Type

pub enum CFSetEqualCallBack {
    None,
    Some(unsafe extern "C" fn(*const c_void, *const c_void) -> u8),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*const c_void, *const c_void) -> u8)

Some value of type T.