#include #include #include #include struct A { const int32_t *data; }; enum E_Tag { V, U, }; struct E { enum E_Tag tag; union { struct { const uint8_t *u; }; }; }; #ifdef __cplusplus extern "C" { #endif // __cplusplus void root(struct A _a, struct E _e); #ifdef __cplusplus } // extern "C" #endif // __cplusplus