1#define xCAT(A,B) A ## B
2#define CAT(A,B) xCAT(A,B)
3#undef PART
4#define PART CAT(isl_,BASE)
5#undef UNION
6#define UNION CAT(isl_union_,BASE)
7#define xFN(TYPE,NAME) TYPE ## _ ## NAME
8#define FN(TYPE,NAME) xFN(TYPE,NAME)
9#define xS(TYPE,NAME) struct TYPE ## _ ## NAME
10#define S(TYPE,NAME) xS(TYPE,NAME)
11

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