I note that kobj uses a pointer to int kobj_error_method(void) when
it can't find an implementation of an interface in a class's method
list and the interface has no default implementation. However, the
C standard says in section 6.3.2.3:

       [#8] A pointer to a function of one type may be converted to
       a pointer to a function of another type and back again;  the
       result  shall  compare  equal to the original pointer.  If a
       converted pointer is used to call a function whose  type  is
       not  compatible  with  the  pointed-to type, the behavior is
       undefined.

and kobj_error_method is (necssarily) of a different type from all
actual interfaces.

Obviously this doesn't matter except in perverted C implementations
that (say) use pascal calling conventions, but I note it in case of
anyone trying to use kobj on such a system :-)

Tony.

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