Type Alias CMBufferCompareCallback 

pub type CMBufferCompareCallback = Option<unsafe extern "C" fn(buf1: CMBufferRef, buf2: CMBufferRef, refcon: *mut c_void) -> CFComparisonResult>;

Apple SDK type alias CMBufferCompareCallback.

Aliased Type

pub enum CMBufferCompareCallback {
    None,
    Some(unsafe extern "C" fn(*const c_void, *const c_void, *mut c_void) -> i64),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*const c_void, *const c_void, *mut c_void) -> i64)

Some value of type T.