On Friday, 23 October 2015 at 21:22:38 UTC, Vladimir Panteleev
wrote:
That doesn't sound right. In fact, this puts into question why
dchar.max is at the value it is now. It might be the current
maximum at the current version of Unicode, but this seems like
a completely pointless restriction that breaks
forward-compatibility with future Unicode versions, meaning
that D programs compiled today may be unable to work with
Unicode text in the future because of a pointless artificial
limitation.
Unless UTF-16 is deprecated and completely removed from all
systems everywhere, there is no way for Unicode Consortium to
increase the limit beyond U+10FFFF. That limit is not arbitrary,
but based on the technical limitations of what UTF-16 can
actually represent. UTF-8 and UTF-32 both have room for
expansion, but have been defined to match UTF-16's limitations.
