29 #define CALL_FUNCTION_1(sym, ret, type1) \  argument
30 ret (*real_##sym)(type1) = NULL; \
31 ret sym(type1 arg1) { \
36 #define CALL_FUNCTION_2(sym, ret, type1, type2) \  argument
37 ret (*real_##sym)(type1, type2) = NULL; \
38 ret sym(type1 arg1, type2 arg2) { \
43 #define CALL_FUNCTION_3(sym, ret, type1, type2, type3) \  argument
44 ret (*real_##sym)(type1, type2, type3) = NULL; \
45 ret sym(type1 arg1, type2 arg2, type3 arg3) { \
50 #define CALL_FUNCTION_4(sym, ret, type1, type2, type3, type4) \  argument
51 ret (*real_##sym)(type1, type2, type3, type4) = NULL; \
52 ret sym(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \
57 #define CALL_FUNCTION_5(sym, ret, type1, type2, type3, type4, type5) \  argument
58 ret (*real_##sym)(type1, type2, type3, type4, type5) = NULL; \
59 ret sym(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) { \
64 #define DEFINE_INTERCEPT_N(N, sym, ret, ...) \  argument
66 CONCATENATE(CALL_FUNCTION_, N)(sym, ret, __VA_ARGS__) \
79 #define DEFINE_INTERCEPT(sym, ret, ...) DEFINE_INTERCEPT_N(INTERCEPT_NARG(__VA_ARGS__), sym, ret, _…  argument