Jacob Carlborg wrote:
On 10/28/09 15:56, Stefan Strasser wrote:
I can't make sense of your code ("weakThis" in both A and B, even though B is derived from A?), but have a look at boost::shared_from_this
If I don't have a weak_ptr in B I get this error when trying to create a shared_ptr<B> from a weak_ptr<A>: /shared_ptr.hpp:207: error: invalid conversion from 'A* const' to 'B*'
The compiler is stopping you from doing something unsafe.
I've already tried boost::shared_from_this and it gives me the same result.
I think it would be useful to show what you're actually trying to achieve becasue you can probably do it with shared_from_this(), and if you can't then it looks like it's because of casting issues rather than the shared_from_this code... n