class Foo { public: int Bar(int x, int y) { return x + y; } }; namespace { int Quux (void) { return 0; } } struct Container { int MemberVar; }; int main() { Foo fooo; Foo *ptr_fooo = &fooo; fooo.Bar(1, 2); Container container; Container *ptr_container = &container; int q = Quux(); return container.MemberVar = 3; // Break here }