[Boost-users] Boost Interprocess Question

Subject: [Boost-users] Boost Interprocess Question
From: Brian (piptdog_at_[hidden])
Date: 2011-10-06 20:15:05

Hello

For simplicity, say I have this:

class Animal
{
        int id;

};

class Dog : public Animal
{
        int tag;
};

class Cat : public Animal
{
        int lives;
};

offset_ptr<Dog> a = segment.construct<Dog>(anonymous_instance)();

offset_ptr<Animal> b;

b = a;

Also assume I have a correctly setup managed_shared_memory called segment.

Is there anyway I can delete the constructed object using b?  I tried segment.destroy_ptr(b.get()) and segment.deallocate(b.get()) but I get assertion failures.  Obviously segment.destroy_ptr(a.get()) would work but I'd like to be able to do it with a pointer to the parent class.  Also casting won't work because I won't know if it's a dog or a cat when I delete it.

Thanks for any suggestions!