gistfile1.cpp

#include <boost/scoped_ptr.hpp>
#include <boost/scoped_array.hpp>


class Foo
{
public:
    Foo(size_t j): i(new int[j])  {}
    virtual ~Foo() {}

private:
    boost::scoped_array<int> i;
};


class Bar: public Foo
{
public:
    Bar(size_t j): Foo(j), i(new char[j])  {}

private:
    boost::scoped_array<char> i;
};


int main()
{
    boost::scoped_ptr<Foo> f(new Foo(100));
    boost::scoped_ptr<Foo> b(new Bar(200));

    return 0;
}