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Unmanaged container - need to adapt to contain managed objects

I've only very recently started with .NET, and need to use some
existing container libraries in new code. I'd like to minimise the
amount of porting, but of course these containers are not designed to
work in a .NET managed way. They make extensive use of pointer
arithmetic, placement new and various other techniques that are
obviously incompatible with managed code.

If possible, I'd like to find a way of storing managed objects within
these containers. This basically boils down to storing managed objects
within unmanaged object wrappers.

Of course I could use an alternative approach, using one of the
standard .NET containers to hold the managed objects and simply
storing a subscript or other 'reference' in my main container, but I'd
like to avoid this if possible.

Ideally, I'd like some way of saying 'this unmanaged class can contain
managed items - I know what I'm doing so let me do it'. The
implication of the setting would be that contained managed objects
would not be cleaned up by the garbage collector until the unmanaged
classes destructor was called.

Is there any such thing? Any suggestions?

Nov 16 '05 #1
0 1182

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