Function libxml::bindings::UCNV_FROM_U_CALLBACK_SUBSTITUTE_60

pub unsafe extern "C" fn UCNV_FROM_U_CALLBACK_SUBSTITUTE_60(
    context: *const c_void, 
    fromUArgs: *mut UConverterFromUnicodeArgs, 
    codeUnits: *const UChar, 
    length: i32, 
    codePoint: UChar32, 
    reason: UConverterCallbackReason, 
    err: *mut UErrorCode
)