cast in gdb python results in virtual baseclass botch

André Pönitz
Wed Apr 13 15:27:00 GMT 2011

On Wednesday 13 April 2011 16:59:49 ext Christoph Mathys wrote:
> I try to cast a gdb.Value to another type. There are cases where it
> works, and others where it doesn't, and I don't really know why. If it
> doesn't work, I get the following exception when I call cast():
> RuntimeError: virtual baseclass botch
> I use gdb 7.2, which apparently does not yet support dynamic_cast().
> Both variables are stored inside a boost::shared_ptr, and I try to
> cast to contained interface pointer to a specific implementation
> pointer.

I don't think you have to cast. 

inner = item.value["px"].dereference()   has already the correct type.


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