Re: [clisp-list] C-struct not getting filled

[Sam S. <sd...@gn...>]

N. Raghavendra wrote:
> 
> -xml-node is my attempt at a direct translation of _xmlNode in
> <libxml2/libxml/tree.h>, which is defined there as a self-referential
> structure:
> 
> typedef struct _xmlNode xmlNode;
> typedef xmlNode *xmlNodePtr;
> struct _xmlNode {
>     void           *_private;   
>     xmlElementType   type;      
>     const xmlChar   *name;      
>     struct _xmlNode *children;  
>     struct _xmlNode *last;      
>     /* [snip] */
>     unsigned short   extra;
> };
> 
> I translated this to
> 
> (def-c-type xml-node (c-struct -xml-node))
> (def-c-type xml-node-ptr (c-pointer xml-node))
> (def-c-struct -xmlNode
>   (-private c-pointer)
>   (type xml-element-type)
>   (name (c-pointer xml-char))
>   (children (c-pointer (c-struct -xml-node)))
>   (last (c-pointer (c-struct -xml-node)))
>   ;; [snip]
>   (extra ushort))

you do realize that you have both -xmlNode and -xml-node which _are_ different 
symbols, right?

> Since `(c-pointer (c-struct -xml-node))' in the above seems to be the
> problem, what should I use in its place?

just plain c-pointer.
you can cast it later.

I hope Joerg will explain why you are getting all NILs