Re: [Boost-users] dynamic_pointer_cast doesn't work as expected

From: Peter Dimov (pdimov_at_[hidden])
Date: 2007-09-28 16:37:58

Diego Bernini:

> Hi,
> see these lines:
>
> boost::shared_ptr<Executor> executor(&(createExecutor(subclass,name)));
> if(!executor) {
>              throw LoadingClassException("createExecutor function
> of\""+subclass+"\" return null.");
> }
> //executor points to an object of class ExecDebugger that IS A Executor
> //(it's a plugin loaded at run time via Qt)
>
> boost::shared_ptr<Nameable> a=executor;
> boost::shared_ptr<Executor> sp;
>
> sp=boost::dynamic_pointer_cast<Executor>(a);

It's possible that dynamic_cast doesn't work across dynamic libraries on 
your platform.