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Bug 1316 - Clarify note on division by negative zero (editorial)
Summary: Clarify note on division by negative zero (editorial)
Alias: None
Product: XPath / XQuery / XSLT
Classification: Unclassified
Component: Functions and Operators 1.0 (show other bugs)
Version: Last Call drafts
Hardware: PC Windows XP
: P2 minor
Target Milestone: ---
Assignee: Ashok Malhotra
QA Contact: Mailing list for public feedback on specs from XSL and XML Query WGs
Depends on:
Reported: 2005-05-09 22:17 UTC by Don Chamberlin
Modified: 2007-02-25 23:38 UTC (History)
0 users

See Also:


Description Don Chamberlin 2005-05-09 22:17:09 UTC
In Section 6.2.4, op:numeric-divide, we read "Division by negative zero 
returns -INF ..." and we also read "Zero divided by zero ... returns NaN." 
There is a potential for confusion about which rule applies in certain cases. 
Proposal: replace the last sentence in the Note in this section as 
follows: "Positive or negative zero divided by positive or negative zero 
returns NaN. Also, INF or -INF divided by INF or -INF returns NaN."

(This clarification is consistent with IEEE 754, which is normative. The Note 
at the end of Section 6.2.4 is simply provided for the convenience of the 
Comment 1 Jim Melton 2007-02-25 23:38:17 UTC
Closing bug because commenter has not objected to the resolution posted and more than two weeks have passed.