// CS0136: A local variable named `res' cannot be declared in this scope because it would give a different meaning to `res', which is already used in a `child' scope to denote something else // Line: 15 class C { public void Foo (int i, int v) { switch (i) { case 1: if (v > 0) { int res = 1; } break; case 2: int res = 2; break; } } }