how to freeing pointers using macro in c

Question

I want to write macro in c code to freeing many pointers like this :

FREE(ptr1, ptr2, ptr3, ptr4, ptrx);

For me, this is better than

Answer 1

use BOOST

#include 
#include 

#define PROC(r, f, elem) f(elem);
#define FREE(...) BOOST_PP_SEQ_FOR_EACH(PROC, free, BOOST_PP_TUPLE_TO_SEQ((__VA_ARGS__)))