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https://issues.apache.org/jira/browse/XERCESC-2004?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Scott Cantor closed XERCESC-2004.
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> bit operation error in DOMNodeImpl::reverseTreeOrderBitPattern
> ---------------------------------------------------------------
>
> Key: XERCESC-2004
> URL: https://issues.apache.org/jira/browse/XERCESC-2004
> Project: Xerces-C++
> Issue Type: Bug
> Components: DOM
> Affects Versions: 3.1.1
> Environment: any
> Reporter: 朱亚东
> Assignee: Alberto Massari
> Fix For: 3.1.2, 3.2.0
>
>
> code like below:
> short DOMNodeImpl::reverseTreeOrderBitPattern(short pattern) const {
> if(pattern & DOMNode::DOCUMENT_POSITION_PRECEDING) {
> pattern &= !DOMNode::DOCUMENT_POSITION_PRECEDING;
> pattern |= DOMNode::DOCUMENT_POSITION_FOLLOWING;
> }
> I think it should be:
> short DOMNodeImpl::reverseTreeOrderBitPattern(short pattern) const {
> if(pattern & DOMNode::DOCUMENT_POSITION_PRECEDING) {
> pattern &= ~DOMNode::DOCUMENT_POSITION_PRECEDING;
> pattern |= DOMNode::DOCUMENT_POSITION_FOLLOWING;
> }
> because !DOMNode::DOCUMENT_POSITION_PRECEDING always be 0.
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