20 lines · c
1#define xFN(TYPE,NAME) TYPE ## _ ## NAME2#define FN(TYPE,NAME) xFN(TYPE,NAME)3 4/* Check that "obj" has a single reference.5 * That is, check that "obj" can be changed inplace.6 */7isl_stat FN(TYPE,check_single_reference)(__isl_keep TYPE *obj)8{9 isl_bool single;10 11 single = FN(TYPE,has_single_reference)(obj);12 if (single < 0)13 return isl_stat_error;14 if (!single)15 isl_die(FN(TYPE,get_ctx)(obj), isl_error_invalid,16 "object should have a single reference",17 return isl_stat_error);18 return isl_stat_ok;19}20