Type Alias CFSetEqualCallBack 

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

@typedef CFSetEqualCallBack Type of the callback function used by CFSets for comparing values. @param value1 The first value to compare. @param value2 The second value to compare. @result True if the values are equal, otherwise false.

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.