Re: [xml] xmlNewNs question

[Daniel Veillard <veillard redhat com>]

On Tue, Nov 14, 2006 at 11:11:25AM -0600, David Hagood wrote:
> > On Tue, Nov 14, 2006 at 10:02:17AM -0600, David Hagood wrote:
> > > If I create a xmlNsPtr for a node, and then the node is destroyed, is
> > > the xmlNsPtr still valid
> >
> >   No. You must be careful when destroying an element about its subtree.
> >
> > > and available for other nodes? If is is invalid, does
> > > it need to be freed?
> >
> >   Invalid in an XML context has a very precise meaning related to DTD
> > validation, I don't see what you mean here.
>
> It refers to the previous question - if the xmlNodePtr for which the
> xmlNsPtr is created is destroyed, does the xmlNsPtr need to be freed, or
> is it implicitly freed when the xmlNodePtr is freed.

 How do you destroy it ? Asking the question is likely to bring back an
unambiguous answer. The function to do this is:
   http://xmlsoft.org/html/libxml-tree.html#xmlFreeNode
and its description clearly tells it's recursive and free all children.
Namespace declarations are children. Now if you move stuff around it really
depends what you do.

Daniel

-- 
Red Hat Virtualization group http://redhat.com/virtualization/
Daniel Veillard      | virtualization library  http://libvirt.org/
veillard redhat com  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
http://veillard.com/ | Rpmfind RPM search engine  http://rpmfind.net/