   From: Kent Karlsson <kentk@cs.chalmers.se> Date: Fri, 23 Sep
2005 12:43:03 +0200 (CEST) Message-ID: <16302.> To: "Philip
Guenther" <guenther+collation@sendmail.com> Cc: "Mark Davis"
<mark.davis@icu-project.org>, public-ietf-collation@w3.org  >
These would appear to outlaw a collation for comparing or
ordering  The revision of IEEE 754 (known as 754R) includes a
total order comparison. IIRC the NaNs that happen to have to
have the sign bit set (though there is no such things as
negative NaNs) are ordered "less" than negative infinity, those
that do not are ordered "greater" than positive infinity,
negative zero is "less" than zero (they otherwise compare
equal).  There is no change to the ordinary operations that are
expected to surface as "<" etc. operators in programming
languages. The total ordering is a new operation.  I don't
right now recall what the suggestion was for decimal base (new
in 754R), where differently scaled, but equal values compare
equal (of course, for the "ordinary" comparison) with