1#define xCAT(A,B) A ## B
2#define CAT(A,B) xCAT(A,B)
3#undef EL
4#define EL CAT(isl_,EL_BASE)
5#define xFN(TYPE,NAME) TYPE ## _ ## NAME
6#define FN(TYPE,NAME) xFN(TYPE,NAME)
7#define xLIST(EL) EL ## _list
8#define LIST(EL) xLIST(EL)
9

source code of polly/lib/External/isl/isl_list_macro.h