1 namespace A 2 { 3 int x = 11; 4 } 5 6 int x = 22; 7 int y = 0; 8 9 class B 10 { 11 public: 12 int x; 13 14 int 15 func() 16 { 17 x = 33; 18 y++; // marker1 19 20 { 21 int x = 44; 22 y++; // marker2 23 24 { 25 int x = 55; 26 y++; // marker3 27 28 { 29 using namespace A; 30 y++; // marker4 31 32 { 33 using A::x; 34 y++; // marker5 35 } 36 } 37 } 38 } 39 } 40 }; 41 42 int 43 main() 44 { 45 B theB; 46 return theB.func(); 47 } 48