#include #include "../sdk/UnknownFieldSDK.h" static unsigned int gv = 0; class C1 { public: C1() { gv = 1; } }; class UnknownFieldProtection(C2) { public: C1 c; unsigned int gv_ = gv; }; int main() { C2 c2; printf("c2.gv=%d\n", c2.gv_); return 0; }