pub unsafe extern "C" fn CFCalendarGetComponentDifference(
identifier: CFCalendarIdentifier,
startingAT: CFAbsoluteTime,
resultAT: CFAbsoluteTime,
options: CFOptionFlags,
componentDesc: *const c_char,
...
) -> Boolean
pub unsafe extern "C" fn CFCalendarGetComponentDifference(
identifier: CFCalendarIdentifier,
startingAT: CFAbsoluteTime,
resultAT: CFAbsoluteTime,
options: CFOptionFlags,
componentDesc: *const c_char,
...
) -> Boolean