pub unsafe fn udatpg_addPattern(
    dtpg: *mut *mut c_void,
    pattern: *const u16,
    patternlength: i32,
    override: i8,
    conflictingpattern: *mut u16,
    capacity: i32,
    plength: *mut i32,
    perrorcode: *mut UErrorCode
) -> UDateTimePatternConflict