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#include <stdio.h>
#include <stdint.h>
class A
{
public:
A(int a) :
m_a(a)
{
}
virtual ~A(){}
virtual int get2() const { return m_a; }
virtual int get() const { return m_a; }
protected:
int m_a;
};
class B : public A
{
public:
B(int a, int b) :
A(a),
m_b(b)
{
}
~B() override
{
}
int get2() const override
{
return m_b;
}
int get() const override
{
return m_b;
}
protected:
int m_b;
};
struct C
{
C(int c) : m_c(c){}
virtual ~C(){}
int m_c;
};
class D : public C, public B
{
public:
D(int a, int b, int c, int d) :
C(c),
B(a, b),
m_d(d)
{
}
protected:
int m_d;
};
int main (int argc, char const *argv[], char const *envp[])
{
D *good_d = new D(1, 2, 3, 4);
D *d = nullptr;
return d->get();
}
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