1411 2005-05-13 20:20:51 +0000 Constructing positive and negative zero -- Schema 1.1 2005-09-29 11:05:18 +0000 1 1 1 Unclassified XPath / XQuery / XSLT Functions and Operators 1.0 Last Call drafts PC Windows XP CLOSED FIXED http://lists.w3.org/Archives/Member/w3c-xml-schema-ig/2005Apr/0054.html P2 normal --- 1 ashok.malhotra ashok.malhotra public-qt-comments oldest_to_newest 3340 0 ashok.malhotra 2005-05-13 20:20:51 +0000 >xs:float ($arg as xdt:anyAtomicType? ) as xs:float? >Implementations ·may· return negative zero for xs:float("-0.0E0"). >xs:double ($arg as xdt:anyAtomicType? ) as xs:double? >Implementations ·may· return negative zero for xs:double("-0.0E0"). In Schema 1.1, float and double distinguish between 0 and -0; we would *expect* implementations to return negative zero for xs:float('-0.0E0') and xs:double('-0.0E0'). [I suspect this applies elsewhere as well; I'm not going to search down every instance of "allowing" negative zero. Dave Peterson for the XML Schema WG 3106 1 ashok.malhotra 2005-05-19 15:07:41 +0000 This was discussed at the joint QT WGs meeting on 5/18/2005 and it was decided to add explanatory notes where needed saying that this was due to the fact that XML Schema 1.0 does not distinguish the values positive and negative zero. Ashok Malhotra