Something like to tuples in the sequence

[Guest]

This is a preprocesor code:
#define SEQ\
        ((Package,std::string))\
        ((Range,int))\
        ((Length,std::vector<int>))
I know that is tuples in the sequence.
Do it in preprocessor code samothing exists for type,that is:
#define __SEQ\
        (Package,std::string)\
        (Range,int)\
        (Length,std::vector<int>)
Question: What is it a object and how it to get with this preprocessor
definition,that is other objects: Range and int but it is separately
Thanks in advice.

 

[Guest]

It do means by next of boost.preprocessor code.
Thanks in advice