🚀 go-pugleaf

In article <2q65gv$oln@bigblue.oit.unc.edu>, brandon@uncvx2.oit.unc.edu (Brandon Van Every) writes:
|> Paul Durbin (pauld@verdix.com) wrote:
|> : I attempt to use a member function as callback but all three arguments (to the
|> : callback) are garbage. If I make it a friend then the arguments are correct,
|> : but then I can't get to the class data, without reference thru an instance of
|> : the class and I don't want the data to be static.
|> 
|> : So, what is causing this problem? 
|> 
|> Motif is based on C, not C++.  You have to use "extern C" linkage for any of
|> your callbacks.  You can't register any C++ function directly.  You have to
|> write a plain C front end for anything you want to have callbacked.

Actually the function does not have to have "extern C" linkage.  It just
can't be a non-static member function.

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