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[Bug 4856] [FO11] arithmetic on durations

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Date: Wed, 13 May 2009 13:12:37 +0000
To: public-qt-comments@w3.org
Message-Id: <E1M4EGD-0002FY-Mp@wiggum.w3.org>
http://www.w3.org/Bugs/Public/show_bug.cgi?id=4856





--- Comment #14 from Tristan Allard <tristan.allard@club.fr>  2009-05-13 13:12:37 ---
A minor note concerning Mike Kay's proposal:

> (b) Define (D +|- duration) for all durations (not only the two subtypes) where
> D is a date or dateTime. The semantics are defined by splitting duration into a
> yMD and a dTD and then taking (D +|- yMD +|- dTD). This is well-defined over
> all durations. 

The spec should warn the reader that ((D +|- yMD) +|- dTD) may give a result
different from ((D +|- dTD) +|- yMD). 


Regards,
Tristan Allard, Bogdan Butnaru, Benjamin Nguyen


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