// Build don't link: // GROUPS passed old-abort extern "C" void printf (char *, ...); class A { int i; int j; public: int h; A() { i=10; j=20; } virtual void f1() { printf("i=%d j=%d\n",i,j); } friend virtual void f2() { printf("i=%d j=%d\n",i,j); }// ERROR - virtual.* }; class B : public A { public: virtual void f1() { printf("i=%d j=%d\n",i,j); }// ERROR - member.*// ERROR - member.* friend virtual void f2() { printf("i=%d j=%d\n",i,j); }// ERROR - virtual.*// ERROR - member.*// ERROR - member.* }; int main() { A * a = new A; }