> On 10 May 2015, at 12:23, Richard Wordingham > <[email protected]> wrote:
>> However I wonder what would be the effect of D80 in UTF-32: is >> <0xFFFFFFFF> a valid "32-bit string" ? > > The value 0xFFFFFFFF cannot appear in a UTF-32 string. Therefore it > cannot represent a unit of encoded text in a UTF-32 string. Even though the values with highest bit set are not a part of original UTF-32, it can easily be extended also to original UTF-8, which may be simpler to implement.
