- From: Michael Rys <mrys@microsoft.com>
- Date: Mon, 16 Feb 2004 03:06:13 -0800
- To: <public-qt-comments@w3.org>
Section 3.2.2 Predicates Technical The current dispatch rules for predicates is problematic since one often has to defer to runtime whether an index or an effective Boolean value is calculated, even if one does static type inferencing, and since float/double imprecision can lead to unexpected/wrong results. Instead of doing position and fn:boolean() do the following for E[$x]: if $x instance of xs:decimal=> do position as described (note no float/double due to precision issues), if $x instance of node()* then fn:boolean($x), if instance of xs:boolean then $x, otherwise type error (may also add xs:string as an option).
Received on Monday, 16 February 2004 06:06:23 UTC