Subject: Re: [xsl] floor() and idiv From: Colin Paul Adams <colin@xxxxxxxxxxxxxxxxxx> Date: Thu, 06 Nov 2008 22:11:47 +0000 |
>>>>> "David" == David Carlisle <davidc@xxxxxxxxx> writes: David> Is it really the case in gestalt that the two always give David> the same, or may thay differ eventually at the edges of David> some finite range of supported values? No, they will not differ. The range of supported values is governed by a command-line option. If you try to use a bigger number, then you will get the appropriate error. (FOCA0001 I think). David> F&O spec says: David> For xs:decimal values the number of digits of precision David> returned by the numeric operators is David> 7implementation-defined7. If the number of digits in the David> result exceeds the number of digits that the implementation David> supports, the result is truncated or rounded in an David> 7implementation-defined7 manner. Oh. Well that's a bad decision, as you no longer have the neat divide between exact arithmetic (requested by xs:integer or xs:decimal) and inexact arithmetic (requested by xs:double and xs:float) that you get in XML Schema. -- Colin Adams Preston Lancashire
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