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class Parent {
private:
[[maybe_unused]] int a;
protected:
int b;
public:
int c;
int d; // Shadowed by Child::d, but should be reachable with a cast
Parent(int a, int b, int c, int d) : a(a), b(b), c(c), d(d)
{
}
};
class Child : public Parent {
public:
int d;
int e;
int f;
Child(int a, int b, int c, int d, int e, int f)
: Parent(a, b, c, d), d(d + 1), e(e), f(f)
{
}
};
class GrandChild : public Child {
public:
int g;
GrandChild(int a, int b, int c, int d, int e, int f, int g)
: Child(a, b, c, d, e, f), g(g)
{
}
};
struct Top {
int x;
};
struct Left : public Top {
int y;
};
struct Right : public Top {
int z;
};
struct Bottom : public Left, public Right {
int w;
};
struct Multi : public Parent, public Top {
int abc;
int &rabc;
Multi(int a, int b, int c, int d, int e)
: Parent{ a, b, c, d }, Top{ e }, abc{ e + 1 }, rabc{ abc }
{
}
};
int func_1(Child &c, Parent &p __attribute__((unused)))
{
return dynamic_cast<Parent &>(c).d;
}
int func_2(GrandChild &lc)
{
return dynamic_cast<Parent &>(lc).d;
}
int func_3(Multi &m, Bottom &b __attribute__((unused)))
{
return m.abc;
}
int main()
{
Parent p{ 1, 2, 3, 4 };
Child c{ 1, 2, 3, 4, 5, 6 };
func_1(c, p);
GrandChild lc{ 1, 2, 3, 4, 5, 6, 7 };
func_2(lc);
Multi m{ 1, 2, 3, 4, 5 };
Bottom b{
{
// Left
{ 1 }, // Left's Top
2 // Left's y
},
{
// Right
{ 3 }, // Right's Top
4 // Right's z
},
5 // Bottom's w
};
func_3(m, b);
return 0;
}
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