[xml] Return type of the xpath query during the compilation of xpath

[Umesh Chandak <umeshc gslab com>]

Hi ,
   I want to know is there any way in libxml xpath to come to know the 
return type of the xpath query. I know that there is a way to determine 
the return type of the  xpath query after evaluation but for my purpose 
I want to know this return type at compilation time .
   If there is no way then can any point to me how it can be done in 
libxml xpath.

Thanks.
Regards,
Umesh