wlock->remove();
remove() removes the XML document node that
the writer lock is positioned to, and repositions the writer lock to
its parent node. If the writer lock is positioned on the document's root
node, the document becomes empty, and the writer lock has no XML
document node position.
When an XPath nodeset
gets created by a writer lock: calling remove()
invalidates all nodes in XPath nodesets which were affected by
the removal.
Other nodes remain. The nodesets' sizes do not change.
For example: a nodeset
had five nodes and one of them were removed. The nodeset's
count() is still 5, but a
to_node() to the removed node throws an
exception (and succeeds normally for the other four).